Learning and Conditioning

Classical Conditioning

Classical conditioning is a type of learning in which a neutral stimulus becomes associated with a meaningful stimulus, eventually eliciting a similar response. This process was first described by Ivan Pavlov.

• Unconditioned Stimulus (US): A stimulus that naturally elicits a response (e.g., food).

• Unconditioned Response (UR): The natural response to the US (e.g., salivation to food).

• Neutral Stimulus (NS): A stimulus that does not elicit the response before conditioning (e.g., bell).

• Conditioned Stimulus (CS): The previously neutral stimulus that, after association with the US, elicits a response (e.g., bell after conditioning).

• Conditioned Response (CR): The learned response to the CS (e.g., salivation to bell).

• Steps: NS is paired with US repeatedly; NS becomes CS, eliciting CR.

• Example: Pavlov’s dogs learned to salivate (CR) to a bell (CS) after it was repeatedly paired with food (US).

Operant Conditioning

Operant conditioning involves learning through consequences, where behaviors are strengthened or weakened by reinforcement or punishment. B.F. Skinner is a key figure in this area.

• Positive Reinforcement: Adding a desirable stimulus to increase a behavior (e.g., giving a treat for good behavior).

• Negative Reinforcement: Removing an aversive stimulus to increase a behavior (e.g., turning off a loud noise when a task is completed).

• Positive Punishment: Adding an aversive stimulus to decrease a behavior (e.g., scolding).

• Negative Punishment: Removing a desirable stimulus to decrease a behavior (e.g., taking away privileges).

• Example: A child receives praise (positive reinforcement) for doing homework, increasing the likelihood of repeating the behavior.

Observational Learning

Observational learning, or modeling, occurs when individuals learn by watching others. Albert Bandura’s Bobo doll experiment demonstrated that children imitate aggressive behaviors observed in adults.

• Key Difference: Unlike operant conditioning, learning occurs without direct reinforcement.

• Example: A child learns to tie shoes by watching a parent.

Instincts, Reflexes, and Learned Behavior

• Instincts: Innate, fixed patterns of behavior in response to stimuli (e.g., migration in birds).

• Reflexes: Automatic, simple responses to stimuli (e.g., knee-jerk reflex).

• Learned Behaviors: Acquired through experience (e.g., riding a bicycle).

• Comparison: Instincts and reflexes are inborn; learned behaviors require experience.

Cognition and Intelligence

Building Blocks of Thought

• Concepts: Mental groupings of similar objects, events, or people.

• Prototypes: The best example or representation of a concept.

• Schema: Organized clusters of knowledge about a particular topic.

Problem-Solving Strategies

• Algorithms: Step-by-step procedures that guarantee a solution.

• Heuristics: Simple, efficient rules or mental shortcuts.

• Insight: Sudden realization of a problem’s solution.

• Functional Fixedness: Tendency to see objects as only working in a particular way, hindering problem-solving.

Decision-Making Biases

• Anchoring Bias: Relying too heavily on the first piece of information encountered.

• Confirmation Bias: Focusing on information that confirms existing beliefs.

• Hindsight Bias: Believing, after an event, that it was predictable.

• Representative Bias: Judging the likelihood of things based on how well they match prototypes.

• Availability Bias: Overestimating the importance of information that comes to mind easily.

Language: Phonemes, Morphemes, Syntax, and Semantics

• Phonemes: Smallest units of sound in a language (e.g., "b", "a", "t").

• Morphemes: Smallest units of meaning (e.g., "un-", "break", "-able").

• Syntax: Rules for combining words into sentences.

• Semantics: Meaning of words and sentences.

• Comparison: Phonemes and morphemes are building blocks; syntax and semantics govern structure and meaning.

Concepts: Abstract vs. Concrete; Concepts vs. Schema

• Abstract Concepts: Ideas not tied to specific objects (e.g., freedom).

• Concrete Concepts: Tangible, specific objects (e.g., apple).

• Concepts vs. Schema: Concepts are categories; schema are frameworks for organizing information.

Role Schema vs. Event Schema

• Role Schema: Expectations about people in particular roles (e.g., teacher, doctor).

• Event Schema (Scripts): Expectations about sequences of events (e.g., dining at a restaurant).

Intelligence Theories

• Fluid Intelligence: Ability to solve new problems, use logic in new situations.

• Crystallized Intelligence: Accumulated knowledge and skills.

• Sternberg’s Triarchic Theory: Analytical, creative, and practical intelligence.

• Gardner’s Multiple Intelligences: Proposes several independent intelligences (e.g., linguistic, logical-mathematical, spatial, musical, bodily-kinesthetic, interpersonal, intrapersonal, naturalistic).

• Critiques: Gardner’s theory is criticized for lack of empirical support and for broadening the definition of intelligence.

• Intelligence Tests: Criticized for cultural bias, limited scope, and controversy over what they measure.

• Nature vs. Nurture: Both genetics and environment influence intelligence.

Memory

Types of Memory Retrieval

• Recall: Retrieving information without cues (e.g., essay questions).

• Recognition: Identifying information from options (e.g., multiple-choice questions).

• Relearning: Learning information again more quickly than before.

Memory Strategies

• Chunking: Grouping information into meaningful units.

• Rote Rehearsal: Repeating information to keep it in short-term memory.

• Mnemonic Devices: Memory aids (e.g., acronyms).

• Self-Reference Effect: Relating information to oneself to enhance encoding.

Priming

• Priming: Exposure to one stimulus influences response to another stimulus, often unconsciously.

False or Distorted Memories

• Misattribution: Confusing the source of a memory.

• Suggestibility: Incorporating misleading information into memory.

• Bias: Current beliefs or feelings distort memory.

• Memory Reconstruction: Memories are actively rebuilt, not passively retrieved, leading to errors.

• Flashbulb Memories: Vivid, detailed memories of significant events.

Types of Memory

• Automatic Processing: Unconscious encoding of information.

• Effortful Processing: Conscious, intentional encoding.

• Sensory Memory: Brief storage of sensory information.

• Short-Term Memory (STM): Holds information temporarily; capacity is about 7 ± 2 items.

• Working Memory: Active processing of information in STM.

• Long-Term Memory (LTM): Relatively permanent storage.

• Implicit Memory: Unconscious memories (e.g., skills, priming, emotional conditioning).

• Explicit Memory: Conscious memories (e.g., episodic and semantic).

• Procedural Memory: Skills and actions.

• Episodic Memory: Personal experiences.

• Semantic Memory: Facts and general knowledge.

Interference and Amnesia

• Proactive Interference: Old information interferes with new learning.

• Retroactive Interference: New information interferes with old memories.

• Retrograde Amnesia: Loss of past memories.

• Anterograde Amnesia: Inability to form new memories.

Memory in the Brain

• Encoding: Process of getting information into memory.

• Storage: Retaining information over time.

• Retrieval: Accessing stored information.

• Neural Basis: Neurons communicate via synapses; long-term potentiation strengthens connections.

• Key Brain Structures:

  • Hippocampus: Formation of new explicit memories.

  • Amygdala: Emotional memories.

  • Cerebellum: Procedural memories.

  • Prefrontal Cortex: Working memory.

• Doorway Effect: Walking through a doorway can cause forgetting due to context change.

Developmental Psychology

Overview and Domains

Developmental psychology studies how people grow and change throughout the lifespan, focusing on physical, cognitive, and socioemotional domains.

• Physical Development: Changes in body and brain.

• Cognitive Development: Changes in thinking, problem-solving, and memory.

• Socioemotional Development: Changes in relationships, emotions, and personality.

Research Methods in Developmental Psychology

• Naturalistic Observation: Observing behavior in natural settings.

• Structured Observation: Observing behavior in controlled environments.

• Case Study: In-depth study of one individual or group.

• Longitudinal Design: Studying the same individuals over time.

• Cross-Sectional Design: Comparing individuals of different ages at one time.

• Retrospective Study: Looking back at past experiences.

Continuous vs. Discontinuous Development

• Continuous: Gradual, cumulative change.

• Discontinuous: Distinct stages with qualitative differences.

Schema Assimilation and Accommodation

• Assimilation: Incorporating new information into existing schemas.

• Accommodation: Modifying schemas to fit new information.

Language Development: Holographic and Telegraphic Speech

• Holographic Speech: Single-word utterances with complex meaning (e.g., "milk" meaning "I want milk").

• Telegraphic Speech: Two-word combinations (e.g., "want cookie").

Nature/Nurture Debate and Heritability

• Nature: Genetic influences on development.

• Nurture: Environmental influences.

• Heritability Estimates: Statistical measure of genetic influence on traits.

Key Cognitive Milestones

• Object Permanence: Understanding that objects exist even when not seen.

• Egocentrism: Difficulty seeing from others’ perspectives (common in young children).

• Conservation Tasks: Understanding that quantity remains the same despite changes in shape.

Attachment Theory and Harlow’s Monkeys

• Attachment: Emotional bond between child and caregiver.

• Harlow’s Monkeys: Demonstrated the importance of comfort and security in attachment, not just food.

• Attachment Styles: Secure, avoidant, ambivalent, disorganized; identified by reactions in the "strange situation" experiment.

Major Theories in Developmental Psychology

• Piaget’s Theory of Cognitive Development:

  • Sensorimotor (0-2 yrs): Object permanence.

  • Preoperational (2-7 yrs): Egocentrism, symbolic thought.

  • Concrete Operational (7-11 yrs): Conservation, logical thought.

  • Formal Operational (12+ yrs): Abstract reasoning.

• Erikson’s Psychosocial Stages: Eight stages, each with a psychosocial dilemma (e.g., trust vs. mistrust). Success leads to healthy development; failure leads to difficulties.

• Kohlberg’s Theory of Moral Development:

  • Pre-conventional: Obedience and self-interest.

  • Conventional: Conformity and law/order.

  • Post-conventional: Social contract and universal principles.

Parenting and Grief

Parenting Styles

Kübler-Ross Model of Grief

• Denial: Refusing to accept reality.

• Anger: Frustration and resentment.

• Bargaining: Attempting to negotiate for a different outcome.

• Depression: Deep sadness and withdrawal.

• Acceptance: Coming to terms with the loss.