Comprehensive Study Notes: Learning, Memory, and Developmental Psychology

Learning and Behavioural Psychology

Behaviourism Theorists

Behaviourism is a foundational approach in psychology that emphasizes the study of observable behaviours and the role of environmental factors in shaping behaviour. Key theorists include:

• Pavlov: Known for classical conditioning research.

• Watson: Extended classical conditioning to humans.

• Thorndike: Developed the Law of Effect and connectionism.

• Skinner: Pioneered operant conditioning.

Classical Conditioning

Classical conditioning is a learning process where a neutral stimulus becomes associated with a meaningful stimulus, eliciting a conditioned response.

• Pavlov's Research:

  • Unconditioned Stimulus (US): Naturally elicits a response (e.g., food).

  • Unconditioned Response (UR): Natural reaction to US (e.g., salivation).

  • Neutral Stimulus (NS): Initially produces no response.

  • Conditioned Stimulus (CS): NS after association with US.

  • Conditioned Response (CR): Learned response to CS.

  • Factors in Classical Conditioning: Timing, frequency, and intensity of stimuli.

  • Stimulus Generalisation and Discrimination: Responding to similar stimuli vs. distinguishing between them.

  • Extinction: Disappearance of CR when CS is repeatedly presented without US.

  • Spontaneous Recovery: Reappearance of CR after extinction.

• Watson's Research:

  • Little Albert experiment: Demonstrated conditioned emotional responses in humans.

• Applications:

  • Taste aversion, chemotherapy, fear response, drug use, advertising.

Operant Conditioning

Operant conditioning involves learning through consequences, such as rewards and punishments, to increase or decrease behaviour.

• Skinner's Research:

  • Shaping: Gradually guiding behaviour toward a desired outcome.

  • Reinforcement: Positive (adding pleasant stimulus) and negative (removing unpleasant stimulus).

  • Reinforcers: Primary (innate, e.g., food) and conditioned (learned, e.g., money).

  • Punishment: Positive (adding unpleasant stimulus) and negative (removing pleasant stimulus).

  • Schedules of Reinforcement:

    • Continuous and partial ratio

    • Fixed ratio, variable ratio

    • Fixed interval, variable interval

    • Primary and secondary reinforcers

  • Other Concepts: Chaining, discrimination, generalization, delayed reinforcement, habituation, feedback principle, extinction.

Cognitive Perspective on Learning

Cognitive theories emphasize internal mental processes in learning, such as thinking, memory, and problem-solving.

• Cognitive Learning:

  • Cognitive map: Mental representation of spatial information.

  • Latent learning: Learning that occurs without immediate reinforcement.

  • Discovery learning: Learning through exploration and problem-solving.

• Latent Learning: Tolman & Honzik's research; S-O-R theory of learning.

• Observational Learning: Bandura's research; social learning theory; four processes: attention, retention, reproduction, motivation.

• Media Violence and Real-World Violence: Role of imitation and mirror neurons.

Memory and Cognitive Neuroscience

Cognitive Neuroscience of Memory

Memory involves complex neural processes and structures in the brain.

• Synaptic Changes: Long-term potentiation, dendritic changes.

• Hippocampus and Amygdala: Key roles in memory formation and emotional memory.

• Hormones and Memory: Influence of stress hormones.

• Biology of Memory Deterioration: Alzheimer's disease, age-related changes.

• Stored Memories and the Brain: Distributed across neural networks.

Atkinson-Shiffrin Multistore Model

This model describes three types of memory stores:

• Sensory Memory: Brief storage of sensory information.

  • Iconic (visual) and echoic (auditory) memory.

  • Sperling's research: Demonstrated capacity and duration of sensory memory.

• Short-Term Memory: Temporary storage; limited capacity.

  • Decay and interference.

  • Retroactive and proactive interference.

• Long-Term Memory: Durable storage; large capacity.

  • Declarative (explicit) memory: Episodic (events) and semantic (facts).

  • Non-declarative (implicit) memory: Procedural (skills, habits), priming, classical conditioning.

• Working Memory: Phonological loop, visuospatial sketchpad, episodic buffer, central executive.

• Event Memory: Cultural component.

• Autobiographical Memory: Personal life events.

Process of Memory

• Storage: Levels of processing (shallow, deep, consolidation).

• Retrieval: Recall and recognition; encoding specificity principle; state-dependent and mood-dependent memory.

Other Memory Topics

• Emotional Memories: Flashbulb memories.

• Ebbinghaus's Research: Curve of forgetting.

• Causes of Forgetting: Decay, interference, retrieval failure.

• Changes in Brain: Age-related memory loss.

Developmental Psychology

Principles and Research in Developmental Psychology

Developmental psychology studies the changes in behaviour and mental processes across the lifespan.

• Principles of Growth & Development: Physical growth trends, continuous vs. discontinuous development.

• Research Design: Cross-sectional and longitudinal designs.

• Nature-Nurture Influences: Genetic and environmental factors.

Attachment

• Key Aspects: Theories of attachment, neurobiology, attachment styles.

• Problems with Ainsworth's Work: Critiques of attachment theory.

Developmental Domains

• Physical, language, cognitive, and social-emotional development.

Stages of Development

• Prenatal Development: Stages, factors affecting development, teratogens.

• Infancy: Birth to 1 year; myelination, synaptogenesis, sensory processing, motor and emotional development.

• Toddlerhood: 1 to 2.5 years; motor, emotional, and physical development.

• Early Childhood: 2.5 to 5 years; brain, motor, social, and emotional development.

• Middle Childhood: 6 to 12 years; brain, physical, social, and emotional development.

• Adolescence: 12 to 18 years; brain, physical, social, and emotional development.

• Emerging Adulthood: 18 to mid/late twenties.

Cognitive Development

• Piaget's Theory: Schema, accommodation, assimilation.

• Stages of Cognitive Development:

  • Sensorimotor Stage (birth to 2 yrs): Object permanence.

  • Preoperational Stage (2 to 7 yrs): Egocentrism, conservation.

  • Concrete Operational Stage (7 to 11 yrs): Logical thinking, conservation.

• Evaluation of Piaget's Theory: Contributions and challenges.

Vygotsky's Sociocultural Theory

• More knowledgeable other, zone of proximal development, scaffolding, importance of language.

• Contributions of Vygotsky's work.

Comparing Piaget and Vygotsky

• Differences in emphasis on social context, language, and stages of development.

Key Comparison Table: Classical vs. Operant Conditioning

Feature	Classical Conditioning	Operant Conditioning
Type of Learning	Association between stimuli	Association between behaviour and consequence
Key Theorist	Pavlov	Skinner
Response	Involuntary	Voluntary
Reinforcement	Occurs before response	Occurs after response
Examples	Salivation to bell	Pressing lever for food

Important Equations and Principles

• Law of Effect (Thorndike): Behaviours followed by satisfying consequences are more likely to be repeated.

• Encoding Specificity Principle: $\text{Recall is improved when retrieval context matches encoding context}$

• Forgetting Curve (Ebbinghaus): $\text{Retention} = e^{-kt}$, where $k$ is a constant and $t$ is time.

Additional info: These notes expand upon the provided outline with definitions, examples, and academic context to ensure completeness and clarity for exam preparation.