Psychology
By Dr. Akash Garg, DC, MS Pharmacology, MEd, MBA · Updated October 20, 2026
Mind, brain and behavior. Free to read, practice and play, with no sign-up.
14chapters
70interactives
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Chapters
- 1What Is Psychology?History, the major perspectives, subfields & why psychology matters
- 2Psychological ResearchThe scientific method, descriptive & correlational studies, experiments & ethics
- 3BiopsychologyThe neuron, neurotransmitters, the nervous system, the brain & hormones
- 4States of ConsciousnessSleep & circadian rhythm, dreams, sleep disorders & psychoactive drugs
- 5Sensation & PerceptionThresholds, vision, hearing, the other senses & perceptual organization
- 6LearningClassical & operant conditioning, reinforcement schedules & observational learning
- 7MemoryThe three-stage model, encoding, retrieval, forgetting & memory errors
- 8Thinking, Language & IntelligenceProblem solving, bias, language & measuring intelligence
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- 9Lifespan DevelopmentPrenatal to late adulthood, Piaget, attachment & Erikson
- 10Motivation & EmotionTheories of motivation, hunger, the theories of emotion & its biology
- 11PersonalityPsychodynamic, humanistic, trait (Big Five) & social-cognitive theories
- 12Social PsychologyAttribution, persuasion, conformity & obedience, prejudice & helping
- 13Stress, Health & CopingThe stress response, stress & health, coping & well-being
- 14Psychological Disorders & TherapyDefining disorders, major disorders & the psychotherapies
Written by Dr. Akash Garg
Doctor of Chiropractic, MS in Pharmacology, MEd and MBA. Teaching college science since 2007.