T_4_12 — Radicalization: Pathways to Extremism, Terrorism, and Deradicalization

Radicalization — the process by which individuals adopt increasingly extreme political, social, or religious ideologies that justify violence as a means of achieving group or personal goals — has become one of the most i

T_4_01 — Psychology of Belief & Conspiracy Thinking

The psychology of conspiracy thinking examines why individuals adopt beliefs in secret plots by powerful actors to achieve malevolent goals — beliefs that often resist disconfirmation and form interconnected "monological

T_4_11 — Propaganda and Persuasion: Techniques, Psychology, and Modern Information Warfare

Propaganda — the systematic dissemination of information (true, distorted, or fabricated) to shape public attitudes, beliefs, and behaviors in service of a particular agenda — and persuasion — the art and science of chan

T_4_17 — Parasocial Relationships: One-Sided Bonds with Media Figures

Parasocial relationships — the one-sided emotional bonds that audiences form with media personalities, fictional characters, and public figures — were first described by sociologists Donald Horton and Richard Wohl in the

T_2_07 — Psychology of Addiction

Addiction — compulsive engagement with a substance or behavior despite harmful consequences — is now understood as a chronic brain disorder involving neuroplastic changes in reward, motivation, memory, and executive cont

T_2_06 — Health Psychology and Stress

Health psychology investigates how psychological, behavioral, and social factors influence health, illness, and healthcare — integrating biological and psychosocial perspectives within the biopsychosocial model (Engel, 1

T_2_19 — Eating Disorders

Eating disorders (EDs) — including anorexia nervosa (AN), bulimia nervosa (BN), binge eating disorder (BED), and avoidant/restrictive food intake disorder (ARFID) — affect an estimated 9% of the global population over th

T_2_12 — Psychology of Trauma and PTSD

Psychological trauma — exposure to events involving actual or threatened death, serious injury, or sexual violence — can produce lasting alterations in cognition, emotion, arousal, and behavior. Post-Traumatic Stress Dis

T_2_13 — Placebo and Nocebo Effects

The placebo effect — a measurable physiological or psychological improvement in response to an inert treatment — is one of the most robust and well-documented phenomena in medicine and psychology, while the nocebo effect

T_2_17 — Depression & Mood Disorders

Major Depressive Disorder (MDD) affects an estimated 280 million people worldwide (WHO, 2023) and is the leading cause of disability globally. The neurobiological understanding of depression has undergone a paradigm shif

T_1_19 — Depression: Neurobiology, Treatment Evolution & Cultural Perspectives

Major depressive disorder (MDD) — affecting approximately 280 million people worldwide (WHO, 2021) and ranking as the leading cause of disability globally — is a heterogeneous condition whose neurobiology remains incompl

T_1_00 — Foundations Theories: Subfolder Summary

T_1_11 — History of Psychology

Psychology's formal history as an independent discipline spans approximately 150 years — from Wilhelm Wundt's founding of the first experimental psychology laboratory in Leipzig (1879) to the present day. The discipline

T_1_05 — Moral Psychology — Haidt, Kohlberg, Moral Foundations

Moral psychology — the empirical study of how humans make moral judgments and develop moral understanding — has undergone a revolution over the past two decades, shifting from Lawrence Kohlberg's rationalist stage theory

T_3_10 — Psychology of Humor and Laughter

Humor and laughter are universal human behaviors found across all known cultures and appearing early in development (social smiling by 6–8 weeks, laughter by 3–4 months). Three classical theories dominate the field: Supe

T_3_07 — Psychology of Play

Play — voluntary, intrinsically motivated, process-oriented activity distinguished by positive affect, flexibility, and "as-if" pretense — is a universal feature of mammalian development that serves critical functions in

T_3_05 — Psychology of Motivation and Drive

Motivation — the processes that initiate, direct, and sustain goal-directed behavior — is one of psychology's most extensively studied domains, with applications spanning education, workplace productivity, health behavio

T_3_19 — Feral Children, Linguistic Deprivation, and Critical Period Evidence

Feral children — individuals who grew up with minimal or no human contact during their early years — provide the most compelling (and tragic) natural evidence for the critical period hypothesis in language acquisition. T

T_5_03 — Embodied and Social Cognition

Embodied cognition challenges the classical computational model of mind (cognition as abstract symbol manipulation, independent of the body) by proposing that cognitive processes are fundamentally shaped by the body's ph

T_5_07 — Psychology of Sacred Space and Place

Sacred space — physical locations experienced as qualitatively distinct from ordinary space, charged with spiritual significance, numinous power, or transcendent meaning — is a universal feature of human culture. From Pa