Explore psychologists

A growing catalog across psychology, psychotherapy, and their major traditions.

Educational simulation — not therapy or medical advice.

286 results

Aaron Beck

1921-2021

Cognitive Therapy

Cognitive therapist who linked depression and anxiety to schemas, appraisals, and automatic thoughts.

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Abraham Maslow

1908-1970

Humanistic Psychology

Humanistic theorist of needs, self-actualization, and peak experience.

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Adrian Wells

1959-

Cognitive Behavior Therapy

Clinical psychologist who developed metacognitive therapy for worry, rumination, and persistent emotional disorder.

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Alan Baddeley

1934-

Cognitive Psychology

Cognitive psychologist known for the influential multi-component model of working memory.

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Alan Sroufe

1944-

Developmental Psychology

Developmental psychologist known for attachment, emotional development, and long-term longitudinal research.

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Albert Bandura

1925-2021

Social Learning

Social learning theorist of modeling, self-efficacy, and reciprocal determinism.

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Albert Ellis

1913-2007

Rational Emotive Behavior Therapy

REBT founder who targeted rigid demands, catastrophizing, and self-defeating belief systems.

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Alexander Luria

1902-1977

Neuropsychology

Neuropsychologist who studied functional systems, brain injury, language, and rehabilitation.

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Alfred Adler

1870-1937

Individual Psychology

Individual psychologist who framed distress through inferiority, striving, style of life, and social interest.

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Alfred Binet

1857-1911

Psychometrics

French psychologist who developed early intelligence testing for educational identification.

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Alfried Längle

1951-

Existential Analysis

Existential analyst who extended Franklian traditions toward lived meaning, emotion, and personal consent to life.

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Alice Eagly

1938-

Social Psychology

Social psychologist known for social role theory, gender research, and meta-analytic approaches to sex differences.

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Alison Gopnik

1955-

Developmental Psychology

Developmental psychologist known for theory of mind, causal learning, and how young children think.

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Allan Paivio

1925-2016

Cognitive Psychology

Cognitive psychologist known for dual-coding theory and the role of imagery in memory and language.

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Amedeo Giorgi

1931-

Phenomenological Psychology

Psychologist known for descriptive phenomenological method and rigorous human-science approaches to lived experience.

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Amos Tversky

1937-1996

Cognitive Psychology

Cognitive psychologist who co-developed research on heuristics, framing, and decision making under uncertainty.

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Andre Green

1927-2012

Psychoanalysis

French psychoanalyst known for the dead mother complex, negativity, and severe non-neurotic states.

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Ann Masten

1953-

Developmental Psychology

Developmental psychologist known for resilience research and the idea of ordinary magic.

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Anna Freud

1895-1982

Ego Psychology

Ego psychologist who clarified defenses, child analysis, and the observing functions of mind.

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Anne Anastasi

1908-2001

Psychometrics

Measurement expert who emphasized test construction, interpretation, and the interaction of person and environment.

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Anne Treisman

1935-2018

Cognitive Psychology

Cognitive psychologist known for feature integration theory and influential research on attention and perception.

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Antonio Damasio

1944-

Neuropsychology

Neuropsychologist known for somatic marker theory and integrative work on emotion, decision, and consciousness.

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Arnold Gesell

1880-1961

Developmental Psychology

Developmental pioneer known for maturational theory and systematic observation of child development.

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Arnold Lazarus

1932-2013

Behavior Therapy

Behavior therapist who developed multimodal therapy and helped broaden behavior therapy into integrative practice.

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Arnold Sameroff

1942-

Developmental Psychology

Developmental psychologist known for the transactional model of child and environment.

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Arthur Benton

1909-2006

Neuropsychology

Clinical neuropsychologist known for assessment of higher cortical functions and aphasia-related deficits.

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B.F. Skinner

1904-1990

Behaviorism

Radical behaviorist who explained behavior through reinforcement, contingencies, and environmental design.

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Barbara Rogoff

1950-

Developmental Psychology

Developmental psychologist known for cultural learning, guided participation, and sociocultural development.

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Bessel van der Kolk

1943-

Trauma Psychology

Trauma clinician known for integrating PTSD, developmental trauma, body-based treatment, and memory research.

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Bibb Latane

1937-2021

Social Psychology

Social psychologist known for the bystander effect, diffusion of responsibility, and social impact theory.

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Bluma Zeigarnik

1900-1988

Gestalt Psychology

Gestalt psychologist known for the Zeigarnik effect and research on unfinished tasks and memory.

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Brenda Milner

1918-2024

Neuropsychology

Neuropsychologist whose work with patient H.M. transformed understanding of memory and frontal-lobe function.

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Carl Abraham

1875-1925

Psychoanalysis

Early analyst of libidinal stages, melancholia, and the developmental roots of later pathology.

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Carl Jung

1875-1961

Analytic Psychology

Architect of analytic psychology, interpreting psyche through archetypes, individuation, and symbolic life.

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Carl Rogers

1902-1987

Humanistic Psychology

Person-centered psychologist who emphasized empathy, congruence, and the drive toward growth.

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Carl Stumpf

1848-1936

Experimental Psychology

Foundational experimental psychologist of perception and sound who helped mentor later Gestalt thinkers.

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Carl Whitaker

1912-1995

Experiential Family Therapy

Experiential family therapist who prized spontaneity, symbolism, and emotional engagement.

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Carol Dweck

1946-

Educational Psychology

Psychologist known for mindset research, achievement motivation, and beliefs about ability and learning.

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Carol Gilligan

1936-

Developmental Psychology

Developmental psychologist known for ethics of care and critiques of male-centered models of moral development.

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Charles Spearman

1863-1945

Psychometrics

Factor analyst best known for proposing general intelligence and correlational methods.

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Charlotte Bühler

1893-1974

Humanistic Psychology

Developmental and humanistic psychologist who studied life goals, values, and fulfillment across the lifespan.

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Clara Thompson

1893-1958

Neo-Freudian Psychology

Neo-Freudian psychiatrist who emphasized culture, gender, and interpersonal context in emotional life.

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Clark Hull

1884-1952

Neo-Behaviorism

Neo-behaviorist who modeled learning through drive reduction and formal theory building.

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Clark Moustakas

1923-2012

Humanistic Psychology

Humanistic psychologist known for relationship-centered therapy, loneliness, and heuristic inquiry.

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Claude Steele

1946-

Social Psychology

Social psychologist known for stereotype threat, self-affirmation, and identity in high-stakes settings.

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Cloe Madanes

1945-

Strategic Therapy

Family therapist associated with strategic interventions, family hierarchies, and work with difficult symptom patterns.

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Daniel Kahneman

1934-2024

Cognitive Psychology

Cognitive psychologist who studied heuristics, bias, judgment under uncertainty, and prospect theory.

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Daniel Schacter

1952-

Cognitive Psychology

Memory researcher known for the seven sins of memory and distinctions between episodic remembering and constructive error.

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Daniel Stern

1934-2012

Developmental Psychology

Developmental clinician known for infant research, the interpersonal world of the infant, and emergent selfhood.

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Daryl Bem

1938-

Social Psychology

Social psychologist known for self-perception theory and influential work on attitudes and identity.

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David Barlow

1942-

Cognitive Behavior Therapy

Clinical psychologist known for unified treatment protocols and influential work on anxiety and emotion disorders.

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David Epston

1944-

Narrative Therapy

Co-founder of narrative therapy known for externalizing conversations and therapeutic letter writing.

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David McClelland

1917-1998

Personality Psychology

Psychologist known for achievement motivation, needs theory, and motive assessment.

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David Wechsler

1896-1981

Psychometrics

Psychometrician who developed the Wechsler intelligence scales and broadened clinical assessment practice.

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Derald Wing Sue

1942-

Counseling Psychology

Counseling psychologist known for multicultural competence, racial microaggressions, and culturally responsive psychotherapy.

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Diana Baumrind

1927-2018

Developmental Psychology

Developmental psychologist known for parenting styles and their links to child outcomes.

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Don D. Jackson

1920-1968

Systems Therapy

Family therapy pioneer associated with family homeostasis, conjoint therapy, and the Mental Research Institute.

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Donald Broadbent

1926-1993

Cognitive Psychology

Cognitive psychologist who developed an influential early filter model of attention and information processing.

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Donald Hebb

1904-1985

Neuropsychology

Neuropsychologist whose cell assembly theory linked neural plasticity with learning.

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Donald Meichenbaum

1940-

Cognitive Behavior Therapy

CBT pioneer known for self-instructional training, stress inoculation, and trauma-focused cognitive-behavioral work.

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Donald Meltzer

1922-2004

Object Relations

Post-Kleinian psychoanalyst known for work on autism, aesthetic conflict, and complex inner object relations.

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Donald Stuss

1941-2019

Neuropsychology

Neuropsychologist known for frontal lobe, executive function, and attention research.

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Donald Super

1910-1994

Counseling Psychology

Career-development theorist who framed vocational choice as a lifelong process of self-concept development.

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Donald Winnicott

1896-1971

Object Relations

Pediatrician and analyst of holding, transitional phenomena, and the true and false self.

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Edith Jacobson

1897-1978

Object Relations

Psychoanalyst known for work on depression, self and object representations, and severe personality pathology.

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Edith Kaplan

1924-2009

Neuropsychology

Neuropsychologist known for the Boston Process Approach to assessment and interpretation of cognitive errors.

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Edna Foa

1937-

Cognitive Behavior Therapy

Clinical psychologist who helped establish exposure-based treatment for PTSD, anxiety, and OCD.

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Edward C. Tolman

1886-1959

Cognitive Behaviorism

Behaviorist who argued that purposive action and cognitive maps matter for learning.

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Edward Thorndike

1874-1949

Connectionism

Connectionist who formulated the law of effect and early experimental learning theory.

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Edward Titchener

1867-1927

Structuralism

Structuralist psychologist who used trained introspection to analyze the contents of conscious experience.

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Eleanor Gibson

1910-2002

Developmental Psychology

Perceptual-development researcher known for the visual cliff and ecological learning.

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Eleanor Rosch

1938-

Cognitive Psychology

Cognitive psychologist known for prototype theory, categorization, and links between cognition and language.

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Elizabeth Loftus

1944-

Cognitive Psychology

Memory researcher known for work on eyewitness testimony, misinformation, and false memory.

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Elizabeth Spelke

1949-

Developmental Psychology

Developmental psychologist known for core knowledge, infant cognition, and the origins of human knowledge.

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Elizabeth Warrington

1931-2023

Neuropsychology

Neuropsychologist known for selective deficits in memory, semantics, and visual recognition.

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Elkhonon Goldberg

1946-

Neuropsychology

Clinical neuropsychologist known for work on frontal lobes, cognitive gradients, and executive function.

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Elliot Aronson

1932-

Social Psychology

Social psychologist known for cognitive dissonance, self-justification, prejudice reduction, and the jigsaw classroom.

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Emmy van Deurzen

1951-

Existential Psychotherapy

Existential therapist known for modernizing existential therapy and training across Europe and beyond.

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Endel Tulving

1927-2023

Cognitive Psychology

Memory researcher who distinguished episodic and semantic memory and transformed the study of retrieval.

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Eric Berne

1910-1970

Transactional Analysis

Psychiatrist and therapist who created transactional analysis and popularized ego states, games, and scripts.

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Erich Fromm

1900-1980

Humanistic Psychoanalysis

Social psychoanalyst who linked freedom, character, love, and alienation in modern society.

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Erik Erikson

1902-1994

Psychoanalytic Development

Ego psychologist of identity and psychosocial development across the lifespan.

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Ernest Jones

1879-1958

Psychoanalysis

Psychoanalyst and Freud biographer who helped institutionalize psychoanalysis in the English-speaking world.

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Ernesto Spinelli

1938-

Existential Psychotherapy

Existential therapist known for phenomenological practice, uncertainty, and relational inquiry.

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Ernst Weber

1795-1878

Experimental Psychology

Sensory physiologist whose work on just-noticeable differences became foundational for psychophysics.

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Esther Thelen

1941-2004

Developmental Psychology

Developmental psychologist known for dynamic systems theory and infant motor development.

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Eugene Gendlin

1926-2017

Experiential Therapy

Experiential thinker who developed Focusing and emphasized the felt sense as a guide to change.

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Fergus Craik

1935-

Cognitive Psychology

Memory theorist known for levels-of-processing and influential work on aging and remembering.

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Floyd Allport

1890-1979

Social Psychology

Early experimental social psychologist often credited with helping establish social psychology as a modern science.

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Francine Shapiro

1948-2019

Cognitive Behavior Therapy

Psychologist who developed EMDR and popularized trauma treatment centered on reprocessing distressing memories.

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Francis Galton

1822-1911

Differential Psychology

Early measurement pioneer whose work on heredity and statistics strongly influenced differential psychology.

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Franz Alexander

1891-1964

Psychoanalysis

Psychoanalyst known for brief dynamic treatment, psychosomatic medicine, and the corrective emotional experience.

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Franz Brentano

1838-1917

Foundational Psychology

Philosopher-psychologist whose act psychology and theory of intentionality strongly shaped later psychology.

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Frederic Bartlett

1886-1969

Cognitive Psychology

Memory theorist who showed remembering is reconstructive and shaped by schemas.

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Fritz Heider

1896-1988

Social Psychology

Attribution theorist who studied common-sense explanations, balance, and perceived causality.

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Fritz Perls

1893-1970

Gestalt Therapy

Gestalt therapist who emphasized awareness, unfinished business, contact, and the here-and-now.

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G. Stanley Hall

1844-1924

Developmental Psychology

Early developmental psychologist who helped institutionalize American psychology and child study.

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Georg Elias Müller

1850-1934

Experimental Psychology

Early experimental psychologist who made major contributions to memory, psychophysics, and sensory research.

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George A. Miller

1920-2012

Cognitive Psychology

Cognitive psychologist of information processing, language, and the limits of immediate memory.

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George Kelly

1905-1967

Personal Construct Psychology

Personal construct theorist who treated people as active interpreters and hypothesis-makers.

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George Sperling

1934-

Cognitive Psychology

Cognitive psychologist who demonstrated iconic memory and shaped early information-processing models.

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Gordon Allport

1897-1967

Personality Psychology

Personality theorist who emphasized traits, proprium, maturity, and the uniqueness of the person.

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Gregory Bateson

1904-1980

Systems Therapy

Cybernetic and systems thinker whose ideas deeply influenced communication theory and family therapy.

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Gustav Fechner

1801-1887

Experimental Psychology

Psychophysicist who made sensation measurable and helped turn psychology toward quantitative experiment.

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Hans Eysenck

1916-1997

Differential Psychology

Differential psychologist known for dimensional models of personality and biologically inflected trait theory.

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Hans W. Loewald

1906-1993

Psychoanalysis

Psychoanalyst known for influential work on internalization, ego development, and the therapeutic action of analysis.

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Harold Kelley

1921-2003

Social Psychology

Social psychologist known for attribution theory, covariation logic, and close-relationship research.

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Harry Harlow

1905-1981

Attachment Research

Attachment researcher known for studies of contact comfort, maternal deprivation, and social development in primates.

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Harry Stack Sullivan

1892-1949

Interpersonal Psychiatry

Interpersonal theorist who located personality and anxiety within recurrent patterns of relating.

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Hazel Markus

1949-

Social Psychology

Social and cultural psychologist known for self-schemas and independent versus interdependent self-construals.

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Heinz Hartmann

1894-1970

Ego Psychology

Ego psychologist who emphasized adaptation, ego functions, and conflict-free capacities within psychoanalytic theory.

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Heinz Kohut

1913-1981

Self Psychology

Self psychologist who centered narcissistic development, mirroring, and empathic failures.

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Helene Deutsch

1884-1982

Psychoanalysis

Psychoanalyst who wrote influential and contested accounts of femininity, motherhood, and development.

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Henri Tajfel

1919-1982

Social Psychology

Social identity theorist who explained bias through categorization, comparison, and group belonging.

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Henri Wallon

1879-1962

Developmental Psychology

French developmental theorist who emphasized emotion, movement, and the social formation of the child.

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Herbert Simon

1916-2001

Cognitive Psychology

Cognitive scientist of bounded rationality, problem solving, and information processing.

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Hermann Ebbinghaus

1850-1909

Experimental Psychology

Experimental psychologist who mapped forgetting, rehearsal, and the quantitative study of memory.

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Hermann Rorschach

1884-1922

Psychoanalysis

Swiss psychiatrist associated with the inkblot method and the study of perception, fantasy, and personality style.

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Howard Gardner

1943-

Educational Psychology

Developmental and educational psychologist known for multiple intelligences and broad views of human ability.

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Hugo Munsterberg

1863-1916

Experimental Psychology

Early applied psychologist who linked laboratory methods to law, work, education, and everyday practical problems.

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Ignacio Martin-Baro

1942-1989

Community Psychology

Liberation psychologist who argued psychology must be rebuilt from the standpoint of oppressed communities.

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Insoo Kim Berg

1934-2007

Solution-Focused Therapy

Solution-focused therapist who emphasized client strengths, exceptions, and collaborative brief change.

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Irvin Yalom

1931-

Existential Psychotherapy

Existential therapist known for writing on death, freedom, isolation, meaning, and group therapy.

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Irving Janis

1918-1990

Social Psychology

Social psychologist best known for groupthink and for studying decision making under stress.

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Isaac Marks

1929-2012

Behavior Therapy

Clinician-researcher known for phobias, agoraphobia, and exposure-based treatment.

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Isadore From

1918-2005

Gestalt Therapy

Early Gestalt therapist and teacher central to the New York lineage of classical Gestalt practice.

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Ivan Boszormenyi-Nagy

1920-2007

Contextual Therapy

Family therapist known for contextual therapy, loyalty, fairness, and intergenerational accounting.

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Ivan Pavlov

1849-1936

Classical Conditioning

Physiologist whose conditioning experiments shaped later learning theory and behaviorism.

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J. C. McKinley

1891-1950

Psychometrics

Psychiatrist and test developer who co-created the MMPI and shaped empirical personality assessment.

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Jacques Lacan

1901-1981

Psychoanalysis

French psychoanalyst who reworked Freud through language, desire, the symbolic order, and the divided subject.

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James Bugental

1915-2008

Humanistic Psychology

Existential-humanistic therapist who emphasized presence, aliveness, and choice in encounter.

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James Hillman

1926-2011

Analytical Psychology

Depth psychologist who founded archetypal psychology and emphasized imagination, soul, and symbolic life.

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James J. Gibson

1904-1979

Ecological Psychology

Ecological psychologist who argued perception is direct and organized around affordances in the environment.

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James Marcia

1937-

Developmental Psychology

Developmental psychologist known for identity status theory extending Eriksonian identity development.

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James Mark Baldwin

1861-1934

Functionalism

Early developmental and functional thinker known for work on imitation, adaptation, and the social self.

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James McKeen Cattell

1860-1944

Psychometrics

Early measurement advocate who promoted mental testing and the professionalization of psychology.

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James Rowland Angell

1869-1949

Functionalism

American functionalist who helped consolidate psychology around adaptation, action, and mental operations.

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Jay Haley

1923-2007

Strategic Family Therapy

Strategic therapist focused on hierarchy, power, directives, and stuck family sequences.

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Jean Laplanche

1924-2012

Psychoanalysis

French psychoanalyst known for re-reading Freud through seduction theory, translation, and enigmatic messages.

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Jean Piaget

1896-1980

Developmental Psychology

Developmental theorist of cognitive stages, construction, and the growth of logical structures.

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Jeffrey Young

1950-

Cognitive Behavior Therapy

Schema therapist who expanded CBT to longstanding personality patterns, unmet needs, and maladaptive modes.

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Jerome Bruner

1915-2016

Cognitive Psychology

Cognitive and educational psychologist who emphasized representation, narrative, and discovery learning.

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Jerome Kagan

1929-2021

Developmental Psychology

Developmental psychologist known for work on temperament, inhibition, and emotional development across childhood.

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Jessica Benjamin

1946-

Relational Psychoanalysis

Relational psychoanalyst known for recognition, intersubjectivity, and gendered power in intimate life.

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John B. Carroll

1916-2003

Psychometrics

Psychometrician known for the three-stratum theory of cognitive abilities.

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John B. Watson

1878-1958

Behaviorism

Behaviorist manifesto writer who insisted psychology focus on prediction and control of behavior.

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John Bowlby

1907-1990

Attachment Theory

Attachment theorist who explained security, separation, and internal working models in close relationships.

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John C. Norcross

1957-

Clinical Psychology

Clinical psychologist known for psychotherapy integration, stages of change, and common factors in treatment.

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John Darley

1938-2018

Social Psychology

Social psychologist known for bystander intervention research, helping behavior, and moral action in context.

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John Dewey

1859-1952

Functionalism

Pragmatist philosopher-psychologist who linked mind, habit, education, and democratic life.

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John Exner

1928-2006

Psychometrics

Assessment psychologist who created the Comprehensive System for the Rorschach and standardized projective interpretation.

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John Garcia

1917-2012

Learning Theory

Learning theorist who demonstrated taste-aversion learning and challenged simple equipotential accounts of conditioning.

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John Gottman

1942-

Couples Therapy

Relationship researcher and therapist known for observational couple research, repair attempts, and conflict patterns.

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John Holland

1919-2008

Counseling Psychology

Vocational psychologist known for RIASEC person-environment fit theory in career choice.

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John L. Horn

1928-2006

Psychometrics

Psychometrician who extended fluid and crystallized intelligence theory into a broader model of abilities.

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John R. Anderson

1947-

Cognitive Psychology

Cognitive scientist known for ACT and ACT-R models of memory, skill acquisition, and mental architecture.

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John Raven

1902-1970

Psychometrics

Psychometrician known for Raven's Progressive Matrices and nonverbal assessment of reasoning ability.

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John Turner

1947-2011

Social Psychology

Social psychologist known for self-categorization theory and later developments of social identity research.

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John W. Thibaut

1917-1986

Social Psychology

Social psychologist known for interdependence theory, procedural justice, and close work on social exchange.

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Joseph Breuer

1842-1925

Psychoanalysis

Physician whose work with hysteria helped launch psychoanalytic thinking about symptom meaning.

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Joseph Wolpe

1915-1997

Behavior Therapy

Behavior therapist who developed systematic desensitization for fear and avoidance.

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Joy Paul Guilford

1897-1987

Psychometrics

Psychometrician known for the structure-of-intellect model and studies of creativity.

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Judith Beck

1954-

Cognitive Behavior Therapy

Cognitive therapist who helped standardize and teach modern Beckian CBT around the world.

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Julian Rotter

1916-2014

Social Learning

Social learning theorist known for expectancy, reinforcement value, and locus of control.

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Karen Horney

1885-1952

Neo-Freudian Psychology

Neo-Freudian thinker who explained neurosis through anxiety, self-idealization, and disturbed relationships.

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Karl Duncker

1903-1940

Gestalt Psychology

Gestalt researcher known for problem solving, insight, and the concept of functional fixedness.

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Karl Lashley

1890-1958

Neuropsychology

Neuropsychologist who searched for the engram and emphasized distributed brain organization in learning.

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Karl Pribram

1919-2015

Neuropsychology

Neuropsychologist known for research on frontal lobes, memory, and integrative theories of brain organization.

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Karl Tomm

1942-

Family Systems Therapy

Family therapist known for circular questioning, reflexive interviewing, and conversational systemic practice.

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Kenneth B. Clark

1914-2005

Social Psychology

Social psychologist whose research examined racism, self-concept, and segregation's developmental harms.

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Kenneth Spence

1907-1967

Learning Theory

Learning theorist who developed neo-behaviorist accounts of drive, discrimination, and habit strength.

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Kirk Schneider

1954-

Existential-Humanistic Therapy

Existential-humanistic psychologist known for contemporary writing on awe, meaning, and depth psychotherapy.

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Konrad Lorenz

1903-1989

Attachment Research

Ethologist whose work on imprinting influenced developmental psychology and attachment theory.

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Kurt Goldstein

1878-1965

Neuropsychology

Holistic neurologist who emphasized organismic functioning and adaptation after injury.

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Kurt Koffka

1886-1941

Gestalt Psychology

Gestalt psychologist who extended holistic theory into development and perception.

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Kurt Lewin

1890-1947

Social Psychology

Field theorist who explained behavior through person-environment dynamics and group process.

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L. L. Thurstone

1887-1955

Psychometrics

Psychometrician who argued intelligence is multidimensional rather than a single factor alone.

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Laura Perls

1905-1990

Gestalt Therapy

Co-founder of Gestalt therapy who stressed support, embodiment, and contact as lived process.

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Lawrence Kohlberg

1927-1987

Moral Development

Developmental psychologist known for stage theory of moral reasoning.

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Lee Cronbach

1916-2001

Psychometrics

Measurement theorist known for reliability, validation, and efforts to bridge experimental and correlational psychology.

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Leon Festinger

1919-1989

Social Psychology

Social psychologist known for cognitive dissonance and social comparison theory.

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Leslie Greenberg

1945-

Experiential Therapy

Process-experiential therapist who helped develop emotion-focused therapy.

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Leta Stetter Hollingworth

1886-1939

Differential Psychology

Psychologist of giftedness, sex differences, and educational development who challenged sexist assumptions.

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Lev Vygotsky

1896-1934

Cultural-Historical Psychology

Developmental theorist who explained thought through language, mediation, and social learning.

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Lewis Terman

1877-1956

Psychometrics

American intelligence tester known for the Stanford-Binet and giftedness research.

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Lightner Witmer

1867-1956

Clinical Psychology

Founder of clinical psychology who applied psychological assessment to education and child guidance.

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Ludwig Binswanger

1881-1966

Phenomenological Psychology

Phenomenological psychiatrist who interpreted suffering through lived world and modes of being-in-the-world.

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Mahzarin Banaji

1956-

Social Psychology

Social psychologist known for implicit social cognition and research on automatic bias.

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Mamie Phipps Clark

1917-1983

Developmental Psychology

Developmental psychologist whose studies on racial identity revealed the psychological impact of segregation.

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Mara Selvini Palazzoli

1916-1999

Family Systems Therapy

Milan-school family therapist known for circular questioning and systemic interpretations of family games.

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Margaret Floy Washburn

1871-1939

Comparative Psychology

Comparative psychologist who linked animal behavior, consciousness, and motor theory.

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Margaret Mahler

1897-1985

Developmental Psychoanalysis

Developmental psychoanalyst known for separation-individuation and the emergence of self-other boundaries.

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Marie-Louise von Franz

1915-1998

Analytical Psychology

Jungian analyst known for fairy tales, alchemy, symbolism, and the amplification of archetypal motifs.

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Marsha Linehan

1943-

Cognitive Behavior Therapy

Clinical psychologist who created dialectical behavior therapy for chronic suicidality and severe emotion dysregulation.

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Martin Seligman

1942-

Positive Psychology

Psychologist known for learned helplessness and later for helping found positive psychology.

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Mary Ainsworth

1913-1999

Attachment Theory

Attachment researcher who identified patterns of infant security and caregiver responsiveness.

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Mary Cover Jones

1897-1987

Behavior Therapy

Early behavior therapist known for counterconditioning fears in children.

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Mary Main

1943-2023

Attachment Research

Attachment researcher known for the Adult Attachment Interview and the concept of disorganized attachment.

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Mary Whiton Calkins

1863-1930

Functionalism

Pioneer psychologist and philosopher who advanced self-psychology and challenged exclusion in the field.

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Max Wertheimer

1880-1943

Gestalt Psychology

Founder of Gestalt psychology who argued perception and thought are organized wholes.

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Medard Boss

1903-1990

Daseinsanalysis

Daseinsanalytic psychiatrist who treated symptoms as disturbances in openness to the world.

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Melanie Klein

1882-1960

Object Relations

Object-relations theorist who centered primitive anxiety, phantasy, splitting, and early internal worlds.

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Michael Balint

1896-1970

Psychoanalysis

Psychoanalyst known for Balint groups, basic fault theory, and emotionally attuned clinical listening.

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Michael Gazzaniga

1939-

Neuropsychology

Neuropsychologist known for split-brain research, hemispheric specialization, and cognitive neuroscience.

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Michael Posner

1936-

Cognitive Psychology

Cognitive psychologist known for attention, orienting, and attentional network theory.

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Michael White

1948-2008

Narrative Therapy

Narrative therapist known for externalizing conversations, re-authoring, and socially situated identity work.

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Michelle Craske

1959-

Behavior Therapy

Clinical psychologist known for exposure therapy, anxiety disorders, and inhibitory learning models.

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Mihaly Csikszentmihalyi

1934-2021

Positive Psychology

Psychologist known for flow, optimal experience, creativity, and intrinsic motivation.

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Milton Erickson

1901-1980

Strategic Therapy

Psychotherapist known for hypnosis, indirect suggestion, and highly tailored strategic interventions.

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Monica McGoldrick

1945-

Family Systems Therapy

Family therapist known for genograms, family life cycle theory, and cultural context in systemic work.

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Morton Deutsch

1920-2017

Social Psychology

Social psychologist known for conflict, cooperation, competition, and conflict resolution.

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Muriel Lezak

1928-2021

Neuropsychology

Clinical neuropsychologist whose work standardized modern neuropsychological assessment.

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Murray Bowen

1913-1990

Family Systems

Family systems theorist of differentiation, triangles, and multigenerational patterns.

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Muzafer Sherif

1906-1988

Social Psychology

Social psychologist of norms, group conflict, and superordinate goals.

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Nancy Chodorow

1944-

Psychodynamic Theory

Psychoanalytic feminist theorist known for work on gender, mothering, and the reproduction of relational patterns.

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Nancy McWilliams

1945-

Psychoanalysis

Contemporary psychoanalytic clinician known for accessible writing on personality organization, diagnosis, and psychodynamic therapy.

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Natalie Rogers

1928-2015

Humanistic Psychology

Person-centered therapist who extended Rogersian therapy into expressive arts and creative transformation.

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Nathan Ackerman

1908-1971

Family Systems Therapy

Family therapy pioneer who brought psychoanalytic sensitivity into direct work with whole family systems.

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Neal Miller

1909-2002

Learning Theory

Learning theorist who connected drive, conflict, motivation, and experimental behavior research.

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O. Hobart Mowrer

1907-1982

Learning Theory

Learning theorist known for the two-factor theory of avoidance and fear.

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Onno van der Hart

1941-

Trauma Psychology

Trauma theorist known for structural dissociation and phase-oriented treatment of complex trauma.

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Oswald Külpe

1862-1915

Experimental Psychology

Wurzburg school experimentalist who broadened introspective research to thought and problem solving.

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Otto Kernberg

1928-

Object Relations

Psychodynamic theorist known for borderline personality organization, narcissism, and transference-focused psychotherapy.

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Otto Rank

1884-1939

Psychoanalysis

Psychoanalytic dissenter who emphasized creativity, will, separation, and the trauma of birth.

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Patricia Crittenden

1945-

Attachment Research

Developmental psychologist known for the dynamic-maturational model of attachment and adaptation under danger.

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Paul Goodman

1911-1972

Gestalt Therapy

Writer and therapist who co-authored Gestalt Therapy and helped shape its philosophical and clinical language.

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Paul Meehl

1920-2003

Psychometrics

Psychometrician and clinical theorist known for construct validity and statistical prediction in assessment.

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Paul T. Costa Jr.

1942-

Personality Psychology

Personality psychologist who co-developed the five-factor model and the NEO inventories.

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Paul Watzlawick

1921-2007

Systems Therapy

Systems theorist of communication, paradox, and problem-maintaining interaction patterns.

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Peggy Papp

1929-2018

Family Systems Therapy

Family therapist associated with strategic and structural traditions, symptom prescription, and family life cycle work.

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Peter Fonagy

1952-

Psychodynamic Psychotherapy

Contemporary psychodynamic theorist known for mentalization, attachment-informed treatment, and borderline personality work.

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Peter Lewinsohn

1930-2007

Behavior Therapy

Clinical psychologist known for behavioral models of depression and activation-based treatment approaches.

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Philip Johnson-Laird

1936-

Cognitive Psychology

Cognitive psychologist known for mental models of reasoning, language, and decision making.

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Philip Zimbardo

1933-2024

Social Psychology

Social psychologist associated with role, deindividuation, and the powerful effects of situation and institutional setting.

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Pierre Janet

1859-1947

Dynamic Psychology

Foundational psychologist of dissociation, trauma, and subconscious fixed ideas.

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R. D. Laing

1927-1989

Existential Analysis

Existentially oriented psychiatrist known for work on divided selfhood, family context, and psychosis.

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Ralph Reitan

1922-2014

Neuropsychology

Clinical neuropsychologist associated with the Halstead-Reitan battery and standardized brain-behavior assessment.

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Raymond Cattell

1905-1998

Psychometrics

Psychometrician and personality theorist known for fluid and crystallized intelligence and multivariate trait analysis.

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Rene Spitz

1887-1974

Psychoanalysis

Psychoanalytic developmental observer known for studies of infant deprivation, hospitalism, and early attachment.

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Rensis Likert

1903-1981

Psychometrics

Survey researcher whose Likert scale became foundational for psychological measurement and attitude assessment.

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Richard Lazarus

1922-2002

Cognitive Psychology

Emotion and stress theorist who framed appraisal as central to coping and psychological adaptation.

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Robert Kegan

1946-

Developmental Psychology

Developmental psychologist known for constructive-developmental theory and adult meaning-making.

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Robert R. McCrae

1949-

Personality Psychology

Personality psychologist who co-developed the five-factor model and advanced cross-cultural trait research.

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Robert Rosenthal

1933-2024

Social Psychology

Social psychologist known for expectancy effects, experimenter bias, and the Pygmalion effect.

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Robert S. Woodworth

1869-1962

Experimental Psychology

Experimental psychologist known for dynamic psychology and the organism-centered S-O-R model.

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Robert Selman

1942-

Developmental Psychology

Developmental psychologist known for social perspective-taking and interpersonal understanding across childhood.

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Robert Sternberg

1949-

Psychometrics

Psychologist known for triarchic theory, successful intelligence, and broad critiques of narrow testing models.

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Robert Yerkes

1876-1956

Psychometrics

Psychologist known for intelligence testing, comparative psychology, and large-scale assessment programs.

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Roger Sperry

1913-1994

Neuropsychology

Neuropsychologist known for split-brain research and work on hemispheric specialization.

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Rollo May

1909-1994

Existential Psychology

Existential psychologist who explored anxiety, courage, freedom, and the struggle to live authentically.

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Ronald Fairbairn

1889-1964

Object Relations

Object-relations theorist who recast libido as fundamentally object-seeking rather than pleasure-seeking.

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Roy F. Baumeister

1953-

Social Psychology

Social psychologist known for research on the self, self-control, belonging, meaning, and social rejection.

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Sabina Spielrein

1885-1942

Psychoanalysis

Early psychoanalytic thinker of destruction, transformation, development, and language.

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Salvador Minuchin

1921-2017

Family Systems

Structural family therapist who studied boundaries, alliances, and symptomatic family organization.

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Samuel Messick

1931-1998

Psychometrics

Measurement theorist who broadened modern validity theory and emphasized the consequences of test use.

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Sandor Ferenczi

1873-1933

Psychoanalysis

Innovative analyst of trauma, mutuality, and the emotional reality of clinical relationships.

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Saul Sternberg

1939-

Cognitive Psychology

Experimental cognitive psychologist known for memory scanning and additive-factors methods.

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Serge Moscovici

1925-2014

Social Psychology

Social psychologist who developed social representation theory and research on minority influence.

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Shelley Taylor

1946-

Social Psychology

Social psychologist known for social cognition, self-related processes, health psychology, and tend-and-befriend theory.

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Sidney Jourard

1926-1974

Humanistic Psychology

Humanistic psychologist known for self-disclosure, authenticity, and the transparent self.

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Sigmund Freud

1856-1939

Psychoanalysis

Founder of psychoanalysis, reading symptoms as expressions of conflict, repression, and unconscious desire.

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Solomon Asch

1907-1996

Social Psychology

Social psychologist of conformity, impression formation, and the pressure of group judgment.

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Stanley Milgram

1933-1984

Social Psychology

Social psychologist whose obedience studies exposed the force of authority and situation.

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Stanley Rachman

1934-2021

Behavior Therapy

Clinical psychologist known for fear, obsessions, compulsions, safety behaviors, and exposure theory.

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Stanley Schachter

1922-1997

Social Psychology

Social psychologist known for emotion theory, affiliation research, and broad work on social influence.

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Starke Hathaway

1903-1984

Psychometrics

Assessment pioneer who co-developed the MMPI and advanced empirical personality testing.

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Stephen Mitchell

1946-2000

Relational Psychoanalysis

Relational psychoanalyst who reworked psychoanalysis around relationships, mutuality, and interpersonal patterns.

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Steve de Shazer

1940-2005

Solution-Focused Therapy

Brief therapy innovator who built solution-focused work around exceptions, goals, and pragmatic change.

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Steven C. Hayes

1948-

Cognitive Behavior Therapy

Behavioral psychologist who developed acceptance and commitment therapy and relational frame theory.

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Sue Johnson

1947-2024

Couples Therapy

Clinical psychologist who developed emotionally focused therapy for couples and close relationships.

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Susan Fiske

1952-

Social Psychology

Social psychologist known for social cognition, stereotyping, warmth-competence models, and person perception.

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Susan Folkman

1938-

Cognitive Psychology

Psychologist known for stress, coping, meaning-focused coping, and the transactional model with Lazarus.

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Theodor Reik

1888-1969

Psychoanalysis

Psychoanalytic essayist who highlighted listening, guilt, ritual, and the analyst's felt intuitions.

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Tom Andersen

1936-2007

Family Systems Therapy

Systemic therapist known for reflecting teams and collaborative conversational practice.

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Ulric Neisser

1928-2012

Cognitive Psychology

Cognitive psychologist who helped define the field while critiquing overly artificial laboratory claims.

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Urie Bronfenbrenner

1917-2005

Ecological Systems Theory

Ecological theorist who explained development through nested systems from family to culture.

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Viktor Frankl

1905-1997

Existential Analysis

Logotherapy founder who framed suffering through meaning, conscience, and human freedom within limits.

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Virginia Satir

1916-1988

Family Therapy

Family therapist who linked communication, self-worth, and family patterns.

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Walter Mischel

1930-2018

Social Psychology

Social psychologist who challenged broad trait claims and studied self-control, situations, and delay of gratification.

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Wilfred Bion

1897-1979

Object Relations

Analyst of thinking, containment, projective processes, and the emotional life of groups.

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Wilhelm Reich

1897-1957

Psychoanalysis

Controversial analyst of character structure, bodily armor, and social repression.

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Wilhelm Wundt

1832-1920

Experimental Psychology

Founder of the first psychology laboratory and architect of early experimental psychology.

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William James

1842-1910

Functionalism

Pragmatist and functionalist who treated consciousness, habit, and action as part of lived adaptation.

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William Stern

1871-1938

Differential Psychology

Differential psychologist known for mental age, personalism, and the study of meaningful individual differences.

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Wolfgang Kohler

1887-1967

Gestalt Psychology

Gestalt psychologist who studied insight, organization, and perception across humans and apes.

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Wolfgang Metzger

1899-1979

Gestalt Psychology

Gestalt psychologist who helped systematize perception research and the broader Gestalt tradition.

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