Learning: Acquisition of new, relatively enduring information or behaviors through experience.
Associative Learning: Learning that certain events occur together, which can involve two stimuli (Classical Conditioning) or a response and its consequences (Operant Conditioning).
Stimulus: Event or situation that evokes a response.
Conditioning: Process of connecting stimuli with behaviors.
Two main forms:
Classical Conditioning
Operant Conditioning
Observational Learning: Acquisition through observation and language.
Examples of Classical Conditioning:
Stimulus 1: Thunder
Stimulus 2: Lightning
Response: Startled reaction (wincing)
Process Overview:
Startled by thunder, anticipate it due to previous lightning experience leading to conditioned responses.
Pavlov's experiments demonstrated classical conditioning:
Example: Food (Unconditioned Stimulus) causing salivation (Unconditioned Response).
A bell (Neutral Stimulus) is linked with food, eventually causing salivation alone (Conditioned Response).
Unconditioned Stimulus (US): Food
Unconditioned Response (UR): Salivation
Neutral Stimulus (NS): Whistle (no salivation)
Associating: Whistle + Food
Conditioned Stimulus (CS): Whistle
Conditioned Response (CR): Salivation
Neutral Stimulus (NS): Elicits no response before conditioning.
Unconditioned Response (UR): Unlearned response to an unconditioned stimulus (like salivation).
Unconditioned Stimulus (US): Triggers unconditioned response naturally (such as food).
Conditioned Response (CR): Learned response to a previously neutral (now conditioned) stimulus.
Conditioned Stimulus (CS): Initially irrelevant stimulus that, after association with unconditioned stimulus, triggers a conditioned response.
Acquisition: Initial learning stage linking NS and US.
Extinction: Diminishing of CR when US does not follow CS.
Spontaneous Recovery: Reappearance of extinguished CR after a pause.
Generalization: Stimuli similar to CS elicit similar responses.
Discrimination: Ability to distinguish between CS and similar stimuli not signaling US.
A strong CS paired with a neutral (now NS) could form a new CS (e.g., advertisement techniques).
Preparedness: Organisms are evolutionarily prepared to learn certain associations more easily.
Influences on human health: drug cravings, emotional behaviors, therapy applications.
B. F. Skinner: Influential figure in behaviorism; expanded on Thorndike’s law of effect.
Operant Conditioning: Strengthening behavior followed by reinforcer, diminishing when followed by punisher.
Strengthens response by presenting pleasant stimulus.
Strengthens response by removing unpleasant stimulus.
Primary Reinforcer: Innately satisfies biological needs.
Conditioned Reinforcer: Gains power through association with primary reinforcer.
Continuous Reinforcement: Reinforcement every time behavior occurs.
Partial Reinforcement: Only some behaviors are reinforced.
Types:
Fixed-ratio: After a fixed number of responses.
Variable-ratio: After an unpredictable number of responses.
Fixed-interval: After a fixed amount of time.
Variable-interval: After an average amount of time.
Positive Punishment: Presenting a negative consequence after undesired behavior.
Negative Punishment: Removing a desired stimulus after an undesired behavior.
Major drawbacks include teaching fear and not replacing unwanted behavior.
Shaping: Gradually guiding behavior towards desired target through reinforcement.
Successive Approximations: Rewarding behaviors closer to the desired one.
Cognitive Influences: Expectation of a CS signaling US develops.
Learning occurs through predictions and expectations.
Learning by observing and imitating others' behaviors.
Modeling: Imitating specific behaviors.
Social impacts: prosocial vs antisocial behaviors seen in children.
Example: Bandura's Bobo Doll experiment showcasing aggression and learning.
Promoting helpful behaviors and communications in learning environments.
Antisocial effects of observing negative behaviors such as aggression and deceit.