History of psychology Study Guide

📖 Core Concepts Psychology – Scientific study of behavior and mental processes. Behaviorism – Focuses only on observable behavior; internal states are excluded as scientific data. Cognitive Science – Interdisciplinary field (psychology, linguistics, CS, philosophy, neurobiology) that treats the mind as an information‑processing system. Humanistic Psychology – “Third force” emphasizing personal growth, meaning, and self‑actualization (Rogers, Maslow). Psychoanalysis – Theory of unconscious motivations and developmental stages (Freud). Gestalt Principles – The whole of perception is more than the sum of its parts; organization occurs automatically (e.g., phi‑phenomenon). Classical Conditioning – Learning through association of a neutral stimulus (CS) with an unconditioned stimulus (UCS). Operant Conditioning – Learning via consequences (reinforcement, punishment) that modify the likelihood of a behavior. Piaget’s Stages – Sequence of qualitatively different ways children think (sensorimotor → preoperational → concrete operational → formal operational). Signal Detection Theory – Fechner’s model of how judgments about sensory stimuli are made, separating sensitivity from decision bias. 📌 Must Remember Founders & Dates: Wilhelm Wundt – first lab, 1879, Leipzig. Fechner – psychophysics (1860) & Signal Detection Theory (1854). Pavlov – classical conditioning (published in English 1909). Watson – behaviorist manifesto, 1913. Skinner – operant conditioning, dominant by late 1950s. Key Experiments: Ebbinghaus – forgetting curve, spaced repetition. Thorndike – puzzle‑box, law of effect. Bandura – Bobo doll, observational learning. Wertheimer – phi‑phenomenon (apparent motion). Intelligence Testing: Binet–Simon (1905) → Stanford–Binet (1916). Factor Analysis (Spearman, 1901) – General intelligence factor g plus specific abilities s. Major Schools Timeline: Structuralism (Titchener) → Functionalism (Chicago School). Behaviorism (Watson → Skinner). Psychoanalysis (Freud). Humanistic (Rogers, Maslow). Cognitive (Chomsky 1959, Bandura, Piaget). Therapy Waves: 2nd wave – Cognitive therapy (Ellis). 3rd wave – Acceptance & Commitment Therapy (ACT). 🔄 Key Processes Classical Conditioning Present UCS (e.g., food) → UCR (salivation). Pair CS (tone) with UCS repeatedly. After acquisition: CS → CR (conditioned salivation). Extinction: CS alone → CR diminishes. Operant Conditioning (Skinner) Reinforcer (positive/negative) → increase behavior. Punisher (positive/negative) → decrease behavior. Schedule of Reinforcement (fixed‑ratio, variable‑interval, etc.) determines rate of learning. Piagetian Stage Determination Conduct structured interviews/tasks. Look for evidence of conservation, decentration, abstract reasoning to place child in a stage. Bandura’s Observational Learning Attention → Retention → Motor Reproduction → Motivation. Signal Detection Decision Compute d′ (sensitivity) and β (bias) to separate perceptual ability from decision criterion. 🔍 Key Comparisons Classical vs. Operant Conditioning Classical: involuntary responses; stimulus–stimulus pairing. Operant: voluntary behaviors; behavior–consequence pairing. Behaviorism vs. Cognitivism Behaviorism: rejects internal mental states; focuses on observable behavior. Cognitivism: embraces internal representations; explains behavior via mental processes. Structuralism vs. Functionalism Structuralism: breaks consciousness into basic elements (sensations, images). Functionalism: asks why mental processes exist; emphasizes purpose and adaptation. First‑wave vs. Third‑wave CBT First: behavior change via reinforcement/punishment. Third: adds mindfulness, acceptance, values‑driven action. ⚠️ Common Misunderstandings “Behaviorism denies the mind” – It excludes introspection as a method, not that mental processes don’t exist. “All learning is gradual” – Tolman’s latent learning shows knowledge can form without visible behavior change. “Gestalt only studies visual perception” – Its principles (figure‑ground, closure) apply to any perceptual organization, including music. “Signal detection theory is only about hearing” – It applies to any sensory judgment (visual, tactile, etc.). 🧠 Mental Models / Intuition “Mind as a Computer” – Treat mental operations like input‑processing‑output; useful for understanding information‑processing models. “Learning as a Balance Sheet” – Reinforcements add “credits” to behavior; punishments subtract “credits.” “Psychology as a Map of Schools” – Visualize historical progression: Philosophical → Experimental → Behaviorist → Cognitive/Humanistic → Integrated (CBT, Positive Psychology). 🚩 Exceptions & Edge Cases Imageless Thought (Würzburg School) – Demonstrated that not all mental content is image‑based; challenges strict introspection. Latent Learning (Tolman) – Learning can occur without reinforcement, revealed later when a reward is introduced. Positive Psychology – Focuses on strengths and well‑being, not just pathology; a “third wave” beyond traditional humanistic approaches. 📍 When to Use Which Diagnosing learning mechanisms → Use classical conditioning if stimulus pairing is evident; use operant conditioning if consequences shape behavior. Explaining language acquisition → Favor Chomsky’s innatist model over Skinnerian behaviorism. Choosing a therapeutic approach → Behavior problems → Applied Behavior Analysis (Skinnerian). Maladaptive thoughts → Cognitive Therapy (Ellis). Value‑driven distress → ACT (third wave). Assessing intelligence → Use Stanford–Binet for individual diagnosis; use factor analysis for research on general intelligence. 👀 Patterns to Recognize “UCS → CS → CR” pattern signals classical conditioning questions. “Reinforcement schedule + response rate” indicates operant conditioning problems. “Conservation, decentration, abstract reasoning” cue Piagetian stage identification. “Figure‑ground, closure, continuity” point to Gestalt perception items. “d′ and β values” flag signal detection theory calculations. 🗂️ Exam Traps Confusing CS with UCS – Remember the CS is initially neutral; the UCS naturally elicits the response. Assuming all behaviorism ignores cognition – Neo‑behaviorists (e.g., Hull) incorporated internal variables like drive. Mixing up “positive” vs. “negative” reinforcement – Positive adds a stimulus; negative removes an aversive one—both increase behavior. Attributing “latent learning” to reinforcement – Latent learning occurs without reinforcement; it’s revealed later. Equating “humanistic” with “positive psychology” – Humanistic focuses on self‑actualization; positive psychology empirically studies well‑being and strengths. --- Use this guide for a quick, confidence‑building review before your exam. Focus on the bolded keywords and the process steps—they’re the highest‑yield material!