AP Psychology (2025) – Notes and Study Guides Unit 1 – Biological Bases of Behavior1.1 Interaction of Heredity and Environment1.2 Overview of the Nervous System1.3 The Neuron and Neural Firing1.4 The Brain1.5 Sleep1.6 Sensation Unit 2 – Cognition2.1 Perception2.2 Thinking, Problem-Solving, Judgments, and Decision-Making2.3 Introduction to Memory2.4 Encoding Memories2.5 Storing Memories2.6 Retrieving Memories2.7 Forgetting and Other Memory Challenges2.8 Intelligence and Achievement Unit 3 – Development and Learning3.1 Themes and Methods in Developmental Psychology3.2 Physical Development Across the Lifespan3.3 Gender and Sexual Orientation3.4 Cognitive Development Across the Lifespan3.5 Communication and Language Development3.6 Social-Emotional Development Across the Lifespan3.7 Classical Conditioning3.8 Operant Conditioning3.9 Social, Cognitive, and Neurological Factors in Learning Unit 4 – Social Psychology and Personality4.1 Attribution Theory and Person Perception4.2 Attitude Formation and Attitude Change4.3 Psychology of Social Situations4.4 Psychodynamic and Humanistic Theories of Personality4.5 Social-Cognitive and Trait Theories of Personality4.6 Motivation4.7 Emotion Unit 5 – Mental and Physical Health5.1 Introduction to Health Psychology5.2 Positive Psychology5.3 Explaining and Classifying Psychological Disorders5.4 Selection of Categories of Psychological Disorders5.5 Treatment of Psychological Disorders