T_4_07 — Social Identity Theory and Prejudice

Social Identity Theory (SIT) explains how individuals derive self-concept from group memberships and how this drives intergroup behavior — including prejudice, discrimination, and conflict. Developed by Henri Tajfel and

T_4_00 — Social Group: Subfolder Summary

T_4_14 — Social Comparison Theory: Festinger, Upward/Downward Comparison, and Social Media

Social comparison theory, introduced by Leon Festinger (1954), proposes that humans have a fundamental drive to evaluate their abilities and opinions — and in the absence of objective, non-social standards, they do so by

T_4_08 — Behavioral Economics and Nudge Theory

Behavioral economics integrates psychology into economic models, challenging the rational agent (homo economicus) assumption of classical economics. The field was established by Daniel Kahneman and Amos Tversky's Prospec

T_2_03 — Attachment Theory — Bowlby, Ainsworth & Social Bonds

Attachment theory, developed by John Bowlby (1958, 1969) and empirically validated by Mary Ainsworth (1978), proposes that humans are biologically predisposed to form close emotional bonds with caregivers — and that the

T_2_20 — Personality Disorders: Cluster Analysis and Dimensional Models

Personality disorders (PDs) — enduring patterns of inner experience and behavior that deviate markedly from cultural expectations, are pervasive and inflexible, and cause significant functional impairment — affect approx

T_2_02 — Neurodiversity — Cognitive Variation as Adaptive Spectrum

The neurodiversity paradigm, articulated by sociologist Judy Singer in 1998, frames neurological differences—including autism, ADHD, dyslexia, synesthesia, Tourette syndrome, and other developmental conditions—not as pat

T_2_00 — Clinical Health: Subfolder Summary

T_2_22 — Psychopathy Neuroscience

Psychopathy is a personality disorder characterized by persistent antisocial behavior, impaired empathy and remorse, bold and disinhibited traits, and often superficial charm — affecting an estimated 1% of the general po

T_2_14 — Hypnosis: Suggestion, Trance, and the Science of Hypnotic Phenomena

Hypnosis — a procedure involving an induction (typically relaxation and focused attention instructions) followed by suggestions for changes in perception, sensation, emotion, thought, or behavior — has oscillated between

T_2_18 — Schizophrenia & Psychotic Disorders

Schizophrenia is a severe psychiatric disorder affecting approximately 24 million people worldwide (WHO, 2022), characterized by positive symptoms (hallucinations, delusions, disorganized thought), negative symptoms (anh

T_2_16 — Body Dysmorphic Disorder

Body dysmorphic disorder (BDD) is a psychiatric condition characterized by persistent, distressing preoccupation with perceived defects or flaws in physical appearance that are not observable or appear slight to others.

T_2_09 — Fear, Anxiety, and Phobias

Fear and anxiety are functionally distinct emotion systems: fear is a present-oriented defensive response to immediate threats (fight-flight-freeze), while anxiety is a future-oriented state of apprehension about potenti

T_1_06 — Cognitive Development — Piaget, Vygotsky, Theory of Mind

Cognitive development — how human minds grow in their capacity to think, reason, solve problems, and understand the world — has been dominated by two foundational theories: Jean Piaget's constructivist stage theory (1936

T_1_13 — Object Relations Theory: Internal Worlds, Attachment, and the Relational Self

Object relations theory — the most influential post-Freudian psychoanalytic tradition — shifted the focus of psychoanalysis from Freud's drive theory (instinctual drives seeking discharge) to the primacy of relationships

T_1_10 — Psychometrics and Intelligence Testing

Intelligence testing is among the oldest and most psychometrically robust enterprises in psychology. Spearman's g factor (1904) — a general mental ability extracted through factor analysis — remains one of the strongest

T_1_15 — Schema Theory: Cognitive Frameworks, Scripts, and Knowledge Organization

Schema theory — the idea that the mind organizes knowledge into structured mental frameworks (schemas) that guide perception, memory, and reasoning — is one of the foundational concepts in cognitive psychology, linking w

T_1_00 — Foundations Theories: Subfolder Summary

T_1_07 — Emotion Theory and Affect

Emotion theory addresses one of psychology's most fundamental and contested questions: What are emotions, where do they come from, and how many are there?

T_1_12 — Jung's Later Works: Synchronicity, Aion, and the Red Book

Carl Gustav Jung's later works (roughly 1944–1961) represent the most ambitious, controversial, and philosophically daring phase of his career — extending analytical psychology from clinical psychotherapy into domains of