Subtopic
Psychology
23 lessons to explore at your own pace.
Lessons in Psychology
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Self-paced lesson · ~14 min read
Attention: How the Mind Selects, Binds, and Shifts Information
You search a crowded station for a friend in a red coat. A red advertisement catches your eye, your phone vibrates, and someone nearby says your name. Your senses receive more…
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Self-paced lesson · ~12 min read
Brain: Methods of Research — How We Know What the Brain Does
A brain image shows activity while someone recognizes a face. Does that prove the highlighted area is necessary for face recognition? No. It identifies an association. To understand what…
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Self-paced lesson · ~12 min read
Brain: Structure and Functions — A Feynman Guide
You notice a cup, remember that the drink is hot, decide to pick it up, and adjust your grip as it tilts. This ordinary action depends on many interacting systems. Lecture 3 connects…
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Self-paced lesson · ~13 min read
Consciousness: Attention, Awareness, and the Sleeping Mind
You are reading a paragraph when a notification appears. Your eyes keep moving, yet moments later you cannot explain what you read. Meanwhile, your brain has continued regulating posture…
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Self-paced lesson · ~12 min read
Introduction to Psychology: How the Mind Interprets Your World
You receive a message that says, "Fine." Is the sender happy, annoyed, or simply busy? The words alone do not settle the question. Your expectations, recent conversation, and mood help…
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Self-paced lesson · ~16 min read
Memory: How We Encode, Keep, and Reconstruct Experience
You recognize a familiar face but cannot retrieve the name. You remember the meaning of a conversation but confuse its exact wording. You improve at a skill without remembering every…
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Self-paced lesson · ~8 min read
Science & Research: How to Test What You Think You Know
Why believe that a study technique works? A teacher recommends it, friends repeat it, and it sounds logical. Those are starting points. Research asks a further question: what evidence…
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Self-paced lesson · ~13 min read
Vision II: How We Recognize Objects, Faces, and Words
Imagine seeing a familiar key clearly enough to trace its outline, yet being unable to recognize it until you touch it. Or imagine recognizing a friend's voice but not their face. These…
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Self-paced lesson · ~12 min read
Vision: How the Brain Turns Light into a Meaningful World
A white mug still looks white when you carry it from sunlight into shade. You recognize it when its circular rim projects an ellipse onto your retina, and you adjust your hand to grasp…
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Self-paced lesson · ~13 min read
Adult Development: Changing Abilities, Relationships, and Priorities
An experienced worker may take longer to process an unfamiliar display yet recognize a meaningful pattern that a novice misses. Someone may seek fewer new acquaintances while investing…
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Self-paced lesson · ~14 min read
Child Development: How Children Explore, Think, and Learn Together
A baby watches a toy disappear behind a screen. A toddler calls a zebra a horse. A preschooler insists that a taller glass contains more juice. Each response raises the same question:…
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Self-paced lesson · ~13 min read
Emotion & Motivation: How Feelings, Bodies, and Goals Guide Action
Your heart races before a presentation. You could interpret the sensation as excitement, fear, or a mixture of both. Meanwhile, you want to do well, avoid embarrassment, and communicate…
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Self-paced lesson · ~14 min read
Intelligence: What Tests Measure, Predict, and Cannot Explain Alone
Two people can receive the same test score yet differ greatly in knowledge, persistence, opportunities, and everyday judgment. Intelligence testing summarizes some cognitive performances…
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Self-paced lesson · ~13 min read
Language: How Sounds, Signs, and Context Become Meaning
“Can you open the window?” looks like a question about ability, but usually functions as a request. Understanding it requires more than hearing individual sounds: you must identify…
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Self-paced lesson · ~14 min read
Learning: How Predictions and Consequences Change Behaviour
Your phone sounds, and you anticipate a message before you look. You check it, find something interesting, and become more likely to check again. These are related but different learning…
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Self-paced lesson · ~14 min read
Memory: Amnesia and Memory Systems
Imagine improving at tracing a shape in a mirror while sincerely believing that you have never attempted the task before. The skill has changed, but your recollection of practising has…
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Self-paced lesson · ~13 min read
Memory II: Reconstruction, Interference, and the Limits of Perfect Recall
Two people leave the same meeting with different memories of what was agreed. Neither needs to be dishonest. Each noticed different details, connected them with different expectations,…
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Self-paced lesson · ~14 min read
Personality: Traits, Situations, and the Patterns That Make Us Different
A colleague is quiet in a large meeting but animated with close friends. Someone keeps careful project records while leaving a cluttered desk. These differences do not automatically…
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Self-paced lesson · ~11 min read
Psychopathology II: Treatment, Depression, Bipolar Disorder, and ADHD
Two people report poor concentration. One has recently developed persistent low mood and disrupted sleep; the other has struggled with attention across settings since childhood. Similar…
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Self-paced lesson · ~10 min read
Social Psychology II: Implicit Associations, Evolution, and Happiness
You reject a stereotype yet find one pairing of words easier than another. You predict that a promotion will transform your happiness, then discover that ordinary concerns return. These…
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Self-paced lesson · ~12 min read
Social Psychology: How Other People Shape Judgment and Action
You disagree with a proposal but hear everyone else endorse it. You see a person stumble, notice that nobody reacts, and hesitate. Social psychology asks how other people, group…
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Self-paced lesson · ~13 min read
Stress: How the Body Responds, Recovers, and Adapts
You receive a message about tomorrow's deadline. Nothing is physically chasing you, yet your heart rate rises and you keep rehearsing possible problems. The body can mobilize for an…
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Self-paced lesson · ~13 min read
Thinking: Problem Solving, Judgment, and Cognitive Flexibility
A solution can be logically simple yet difficult to notice. A familiar tool suggests its usual purpose, a vivid story feels more probable than a broader category, and a previously…