Learning: Principles, Processes, and Applications in Psychology

Topic 6: Learning

Introduction

Learning is a fundamental concept in psychology, referring to the process by which experience produces a relatively permanent change in behaviour or knowledge. This topic explores the mechanisms, types, and influences of learning, including classical and operant conditioning, cognitive approaches, and the impact of biological and social factors.

Unlearned Behaviours

Reflexes

Reflexes are automatic, involuntary responses to specific stimuli. They are innate and essential for survival, involving primitive parts of the central nervous system (CNS), such as the brainstem.

• Protective & Essential: Reflexes help protect the organism from harm (e.g., withdrawal reflex).

• Examples: Pupillary light reflex, startle reflex, withdrawal reflex, scratch reflex.

Instincts

Instincts are innate drives or tendencies that lead to particular patterns of behaviour. They are more complex than reflexes and involve the movement of the organism as a whole.

• Examples: Sexual activity, migration in birds.

• Involve higher brain centers: Instincts require more advanced neural processing than reflexes.

What is Learning?

Definition and Types

Learning is a relatively permanent change in behaviour or knowledge resulting from experience. It involves acquiring skills or knowledge through both conscious and unconscious processes.

• Habituation: Decreased response to a repeated, benign stimulus.

• Sensitization: Increased response to a repeated, intense stimulus.

Habituation and Sensitization

Habituation

Habituation is a simple form of learning in which repeated exposure to a stimulus results in a gradual reduction in response.

• Example: A child becomes less startled by a loud noise over time.

Sensitization

Sensitization occurs when repeated exposure to a stimulus increases the organism's response.

• Example: A person becomes more sensitive to stressful events after repeated exposure.

Classical vs. Operant Conditioning

Overview

Both classical and operant conditioning are fundamental learning processes, but they differ in their mechanisms.

• Classical Conditioning: Learning to associate an involuntary response with a stimulus.

• Operant Conditioning: Learning to associate a voluntary behaviour with a consequence (reinforcement or punishment).

Classical Conditioning

Principles and Process

Classical conditioning is the process by which organisms learn to associate stimuli and anticipate events. Ivan Pavlov's research on the digestive system of dogs led to the discovery of classical conditioning.

• Unconditioned Response (UCR): Natural, unlearned reaction to a stimulus (e.g., salivation to food).

• Unconditioned Stimulus (UCS): Stimulus that naturally triggers a response (e.g., food).

• Conditioned Stimulus (CS): Previously neutral stimulus that, after association with UCS, triggers a conditioned response.

• Conditioned Response (CR): Learned response to the conditioned stimulus.

Example: Pavlov's dogs learned to salivate (CR) at the sound of a bell (CS) after the bell was repeatedly paired with food (UCS).

Components of Classical Conditioning

• Neutral Stimulus (NS): Does not elicit a response before conditioning.

• UCS: Naturally elicits a response.

• UCR: Natural response to UCS.

• CS: NS becomes CS after pairing with UCS.

• CR: Response to CS after conditioning.

Acquisition, Extinction, and Spontaneous Recovery

• Acquisition: The phase during which the CS and UCS are paired, leading to learning.

• Extinction: The conditioned response decreases and eventually disappears when the CS is presented without the UCS.

• Spontaneous Recovery: The reappearance of a conditioned response after a pause.

• Renewal Effect: The conditioned response reappears when the organism is returned to the original environment.

Applications: Classical Conditioning & Marketing

Classical conditioning principles are used in marketing to associate products with positive emotions or experiences.

• Example: Pairing a soft drink with happy images to elicit positive feelings toward the product.

Little Albert Study

John B. Watson applied classical conditioning to study human emotions. In the "Little Albert" experiment, a child was conditioned to fear a white rat by pairing it with a loud noise.

• Stimulus Generalization: Albert began to fear other similar objects (e.g., dogs, Santa Claus mask).

• Stimulus Discrimination: Ability to distinguish between different stimuli (e.g., different alarm sounds).

Fetishes & Classical Conditioning

Sexual fixation on a nonsexual object can develop through accidental pairing of sexual arousal with a neutral stimulus.

• Example: Shoes become associated with sexual arousal after repeated pairings.

Conditioned Taste Aversion

Conditioned taste aversion develops after only one trial and can occur even with long delays between stimulus and response.

• Biological Preparedness: Organisms are primed to learn certain associations more easily (e.g., taste and illness).

• Example: Chemotherapy patients may develop aversions to foods eaten before treatment.

Operant Conditioning

Principles

Operant conditioning involves learning to associate a behaviour with its consequences. B.F. Skinner and Edward Thorndike were key figures in developing this theory.

• Law of Effect (Thorndike): Behaviours followed by rewards are more likely to occur; those followed by punishment are less likely.

• Positive: Adding something.

• Negative: Taking something away.

• Reinforcement: Increases behaviour.

• Punishment: Decreases behaviour.

Reinforcement

• Positive Reinforcement: Adding a stimulus to increase behaviour (e.g., praise, paychecks).

• Negative Reinforcement: Removing a stimulus to increase behaviour (e.g., turning off a beeping sound by fastening seatbelt).

Punishment

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

• Negative Punishment: Removing a stimulus to decrease behaviour (e.g., taking away a toy).

Effectiveness of Punishment

• Only tells what not to do.

• Creates anxiety, which interferes with learning.

• May encourage subversive behaviour (sneakiness).

• Models aggressive behaviour for children.

Biological Influences on Learning

Limits and Predispositions

Biology places limits on what behaviours can be learned through reinforcement. Evolutionary predispositions make organisms more likely to fear certain things (e.g., snakes vs. cars).

• Instinctive Drift: Tendency for animals to revert to innate behaviours after repeated reinforcement.

Schedules of Reinforcement

Continuous vs. Partial Reinforcement

• Continuous Reinforcement: Behaviour is reinforced every time it occurs; leads to faster learning but also faster extinction.

• Partial Reinforcement: Behaviour is reinforced only occasionally; leads to slower extinction and better maintenance.

Partial Reinforcement & Intimate Partner Violence (IPV)

Operant learning principles may contribute to decisions to stay or leave abusive relationships, as intermittent reinforcement can maintain attachment.

Partial Reinforcement Schedules

• Fixed vs. Variable:

  • Fixed: Set and unchanging number of responses or time between reinforcements.

  • Variable: Varying number of responses or time between reinforcements.

• Interval vs. Ratio:

  • Interval: Based on time between reinforcements.

  • Ratio: Based on number of responses between reinforcements.

Schedule	Description	Example
Fixed Interval	Reinforcement at predictable time intervals	Medication at set times
Variable Interval	Reinforcement at unpredictable time intervals	Checking social media
Fixed Ratio	Reinforcement after predictable number of responses	Factory workers paid per item
Variable Ratio	Reinforcement after unpredictable number of responses	Gambling, tips

Conditioning & Superstitious Behaviour

Superstitious Behaviour

Occurs when a behaviour is accidentally reinforced by coincidence. Skinner's experiments with pigeons showed that random food delivery led pigeons to repeat whatever behaviour they were doing, believing it caused the food to appear.

• Humans: Rituals before exams or sports games.

• Takeaway: The brain is predisposed to find patterns, even when they are not real.

Cognitive Approaches to Learning

Overview

Not all learning is explained by operant or classical conditioning. Cognitive approaches emphasize the role of mental processes in learning.

• Latent Learning: Learning that occurs without immediate reinforcement and is demonstrated only when there is motivation.

• Observational Learning: Learning by watching others (models).

Latent Learning

Latent learning is learning that is not immediately expressed in behaviour until there is incentive to demonstrate it.

• Example: Tolman's rats developed cognitive maps of a maze without reinforcement, but only demonstrated their knowledge when motivated.

• Real-world examples: Navigating new places, cooking skills, social etiquette, driving routes, emergency responses.

Observational Learning

Observational learning occurs by watching the behaviour of another person (model) and involves several steps:

• Paying attention and perceiving critical features

• Remembering the behaviour

• Reproducing the action

• Being motivated to carry it out

Both positive and negative behaviours can be learned this way (e.g., Bandura's Bobo doll experiment).

Violence in Television & Media

Effects of Media Violence

Exposure to violence in media can influence real-world behaviour, especially in children and adolescents.

• By Grade 8, children may have witnessed thousands of violent acts on TV.

• Media violence can lower inhibitions, distort understanding of consequences, and desensitize viewers to real-life violence.

• Violent video game players may show increased aggression and lower academic achievement.

Transmission of Bias via Observing Others

Recent research shows that observing biased behaviour in others can lead to implicit attitude change, even without direct reinforcement.

• Observers "learn" bias by watching models interact with different social groups.

• Implicit attitudes can be shaped through observation alone.

Summary Table: Types of Learning

Type	Definition	Example
Habituation	Decreased response to repeated stimulus	Ignoring background noise
Sensitization	Increased response to repeated stimulus	Heightened anxiety after repeated stress
Classical Conditioning	Associating involuntary response with stimulus	Pavlov's dogs
Operant Conditioning	Associating voluntary behaviour with consequence	Skinner's rats
Latent Learning	Learning without immediate reinforcement	Tolman's rats in maze
Observational Learning	Learning by watching others	Bandura's Bobo doll

Key Equations and Concepts

• Classical Conditioning Formula:

$\text{NS} + \text{UCS} \rightarrow \text{UCR}$ $\text{CS} \rightarrow \text{CR}$

• Operant Conditioning:

$\text{Behaviour} \xrightarrow{\text{Consequence}} \text{Change in Likelihood of Behaviour}$

Additional info: Expanded definitions, examples, and tables were added for completeness and clarity.