RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
3,721 results for "N" — page 95 of 187
T_4_15 — The Psychology of Cooperation and Trust: Game Theory, Reciprocity, and Institutions
Cooperation — acting in ways that benefit others at a cost to oneself — is both theoretically puzzling (why would natural selection favor organisms that sacrifice fitness for others?) and practically essential (every hum
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_08 — Neuropsychology and Brain Damage
Neuropsychology studies the relationship between brain structure/function and behavior — using patterns of cognitive impairment following brain damage to infer how the intact brain organizes mental processes.
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_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_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_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_04 — Positive Psychology & Wellbeing Science
Positive psychology — the scientific study of what makes life worth living — was formally launched by Martin Seligman in his 1998 APA presidential address, shifting psychology's traditional focus from pathology and dysfu
T_2_11 — Psychology of Aging and Gerontology
The psychology of aging examines cognitive, emotional, and social changes across the adult lifespan, integrating insights from developmental psychology, neuroscience, and gerontology. A central distinction in cognitive a
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_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_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_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_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_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_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_2_15 — Gratitude and Forgiveness: Prosocial Emotions, Health Benefits, and Psychological Resilience
Gratitude and forgiveness — two central topics in positive psychology — represent prosocial emotional responses that profoundly influence interpersonal relationships, mental health, and physical well-being. Gratitude — t
T_2_05 — Clinical Psychology: History and Foundations
Clinical psychology — the assessment, diagnosis, and treatment of mental disorders — evolved from ancient supernatural explanations of madness through institutional reform, the psychoanalytic revolution, behavioral and c
T_1_04 — Developmental Psychology — From Piaget to Attachment Theory
Developmental psychology traces psychological changes across the human lifespan, from prenatal development through aging. Jean Piaget's cognitive stage theory, Lev Vygotsky's sociocultural approach, John Bowlby's attachm
T_1_08 — Personality Psychology and the Big Five
Personality psychology seeks to understand individual differences in characteristic patterns of thinking, feeling, and behaving — and why these patterns remain relatively stable across time and situations.
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