SUBJECTPsychology Foundations
Psychology
Psychology is the scientific study of mind and behavior — why people think, feel, remember, and act as they do, and how those patterns can be observed and tested rather than merely asserted.
Not started yet
Prefer the whole picture first? See the Psychology study guide — full lesson outline, key terms, and practice on one page.
Psychology Foundations — Lessons
- 1
What Is Psychology?
Psychology is the scientific study of mind and behavior. Learn how it differs from psychiatry and neuroscience, and why it is not simply organized common sense.
12 min · beginner - 2
The History of Psychology
From Wundt's 1879 laboratory through structuralism, functionalism, psychoanalysis, behaviorism, humanism, and the cognitive revolution — what each school contributed and what survived.
13 min · beginner - 3
The Scientific Method in Psychology
Hypotheses, theories, experiments, and replication. Learn which research method answers which question, and why replication became psychology's central concern.
14 min · beginner - 4
The Brain and Behavior
Neurons, lobes, and networks — how the brain supports behavior, what neuroplasticity means, and why the 10-percent myth and rigid left-brain/right-brain claims are wrong.
13 min · beginner - 5
Learning and Memory
Encoding, storage, and retrieval across sensory, working, and long-term memory — plus the evidence-based strategies that beat rereading: spacing, retrieval practice, and interleaving.
14 min · beginner - 6
Emotion and Motivation
What emotions are made of, how intrinsic and extrinsic motivation differ, and why autonomy, competence, and relatedness sustain effort better than willpower.
13 min · beginner - 7
Personality
The Big Five traits, the major theoretical perspectives, and why traits describe tendencies across situations rather than fixed types that predict any single action.
13 min · beginner - 8
Psychology in Everyday Life
Apply psychology to learning, decisions, habits, communication, and technology — and learn to judge popular psychological claims without either credulity or cynicism.
13 min · beginner
Modules in this subject
Psychology Foundations
8 lessons
Not started yet
Applied Psychology
7 lessons · ~6-8h
Not started yet
Mind, Self, and Society
7 lessons · ~6-8h
Not started yet
Psychology's Big Questions
7 lessons · ~6-8h
Not started yet
How We Shape Each Other
7 lessons · ~6-8h
Not started yet
The Science of Mental Health
7 lessons · ~6-8h
Not started yet
Positive Psychology and the Good Life
7 lessons · ~6-8h
Not started yet
Concept map
How the core concepts in Psychology relate to one another.
- Scientific MethodsupportsPsychology
- Hypothesisis part ofScientific Method
- Replicationis part ofScientific Method
- HypothesissupportsTheory
- Brainis part ofPsychology
- Neuronis part ofBrain
- Neuronrelates toNeuroplasticity
- NeuroplasticitysupportsLearning
- Learningrelates toMemory
- Working Memoryis part ofMemory
- Long-Term Memoryis part ofMemory
- Retrieval PracticesupportsLong-Term Memory
- Emotionrelates toMotivation
- Motivationis part ofPsychology
- Intrinsic Motivationis aMotivation
- Extrinsic Motivationis aMotivation
- Intrinsic Motivationcontrasts withExtrinsic Motivation
- Personalityis part ofPsychology
- Big Fiveis aPersonality
Psychology: frequently asked questions
- Can psychologists read your mind?
- No. Psychologists observe behavior, ask careful questions, and measure responses — they cannot access your private thoughts directly. Anyone claiming to know exactly what you are thinking is guessing. The field studies patterns in how people think, feel, and act, not telepathy.
- Is psychology just organised common sense?
- No. Common sense explains findings confidently after the fact — including results that later turned out to be false. Psychology tests ideas against evidence instead. Contradictory sayings like "opposites attract" and "birds of a feather flock together" both sound obvious, yet only data can settle which one actually holds.
- Is psychology only about mental illness?
- No. Clinical psychology addresses mental health, but most of the field concerns ordinary functioning — how anyone learns, remembers, decides, feels, and relates to others. Branches include cognitive, developmental, social, and organizational psychology, spanning everyday life, work, and education, not just disorders.
- Do we really only use 10% of our brains?
- No, that is a myth. Brain imaging shows activity throughout the whole brain, and there is no dormant 90% waiting to be unlocked. Different regions are busy at different moments, but across a normal day nearly all of the brain is doing meaningful work.
- Are some people left-brained and others right-brained?
- No. The hemispheres do show some specialization, but no ordinary task belongs to just one side, and nobody is meaningfully "a right-brained person." Complex abilities like language rely on networks spanning both hemispheres, so the tidy logical-versus-creative personality split is not supported by evidence.
- Does a vivid memory mean it's accurate?
- Not reliably. Memory is reconstruction, not playback — each recall reassembles the event and can be reshaped by expectation, mood, and everything learned since. That is why confident, vivid recollections can still be wrong in details, and why leading questions distort what witnesses report. Vividness is not proof of accuracy.
- Do personality tests sort people into fixed types?
- They shouldn't. Traits like the Big Five are dimensions, not boxes — almost everyone sits somewhere in the middle, and a trait describes tendencies, not single actions. Personality is fairly stable but shifts gradually with age and circumstance. Be wary of tests that assign a flattering, fixed type.