PSY 101: Chapter 8

Understanding Learning and Behavior

Reflexes: Involuntary responses to stimuli that are fast and reliable but inflexible, such as sneezing or goosebumps.
Instincts: Also known as fixed action patterns, these are inborn behaviors that do not depend on experience, like yawning or blinking.
Learning: Defined as a relatively permanent change in behavior resulting from experience, allowing individuals to perform tasks they could not before.

Associative Learning: Involves forming connections between stimuli and behaviors, such as linking the sight of a bee with the pain of a sting.
Nonassociative Learning: Changes in response magnitude to stimuli, including habituation (decreased response to harmless stimuli) and sensitization (increased response after a strong stimulus).
Observational Learning: Learning by watching others, which can be positive (e.g., learning a dance) or negative (e.g., adopting harmful behaviors).

Conditioned Stimulus (CS): An environmental event that gains significance through conditioning.
Unconditioned Stimulus (UCS): A stimulus that elicits a response without prior learning, such as food causing salivation in dogs.
Conditioned Response (CR): A learned response to a previously neutral stimulus, like salivating at the sound of a bell after conditioning.

Acquisition: The process of developing a conditioned response, requiring the CS and UCS to be presented closely in time.
Extinction: The reduction of a learned response when the UCS no longer follows the CS, leading to a decrease in CR.
Spontaneous Recovery: The reappearance of a CR after a rest period during extinction training.

Higher-order conditioning: This occurs when a stimulus that is associated with a conditioned stimulus (CS) can elicit a conditioned response (CR) on its own, demonstrating the power of associative learning.
Latent inhibition: Refers to the phenomenon where familiar stimuli take longer to acquire meaning (i.e., become a CS) than novel stimuli, indicating that prior exposure can hinder learning.
Aversions: Classical conditioning can lead to aversive responses, where a previously neutral stimulus becomes associated with an unpleasant experience, leading to avoidance behavior.

Overcoming fear: The Little Albert experiment by John Watson and Rosalie Raynor illustrated how fear can be conditioned and unconditioned, showing the potential for classical conditioning in therapeutic settings.
Aversion therapy: This technique pairs a CS that was previously associated with a pleasurable UCS with an unpleasant UCS to reduce undesirable behaviors, such as addiction.
Systematic desensitization: A counterconditioning method where individuals are gradually exposed to fear-inducing stimuli while practicing relaxation techniques, effectively reducing anxiety.

Neutral stimulus: Ringing the bell, which initially does not elicit a response.
Unconditioned stimulus (UCS): Food, which naturally elicits salivation (unconditioned response).
Unconditioned response (UCR): Salivation in response to food.
Conditioned stimulus (CS): The bell after conditioning, which now elicits a response.
Conditioned response (CR): Salivation in response to the bell after conditioning.

Higher-Order Conditioning: Learning where stimuli associated with a CS also elicit CRs, such as a light paired with a bell that causes salivation.
Generalization: The tendency to respond similarly to stimuli that resemble the original CS, which can lead to broader responses in various contexts.

Discrimination: The learned ability to distinguish between different stimuli, allowing for more precise responses.
Inhibition: A feature where a CS predicts the nonoccurrence of a UCS, leading to a decrease in the likelihood of a CR.

Definition: Operant conditioning involves learning through the association between behaviors and their consequences, which can be either reinforcement or punishment.
Positive reinforcement: Involves presenting a rewarding stimulus after a desired behavior, increasing the likelihood of that behavior being repeated.
Negative reinforcement: Involves removing an aversive stimulus to increase the frequency of a behavior, such as taking pain relief medication to avoid pain.

Positive punishment: Involves presenting an aversive stimulus to reduce a behavior, such as scolding a child for misbehavior.
Negative punishment: Involves removing a desirable stimulus to decrease a behavior, such as taking away privileges when a child misbehaves.

Schedule Type	Description	Example
Fixed Ratio (FR)	Reinforcement after a set number of responses.	Rewarding a rat after every 10 presses.
Variable Ratio (VR)	Reinforcement after a variable number of responses.	Slot machines paying out after random plays.
Fixed Interval (FI)	Reinforcement after a specified time interval.	Weekly paycheck for work.
Variable Interval (VI)	Reinforcement after varying time intervals.	Fishing, where the catch is unpredictable.

Method of successive approximations (Shaping): A technique used to reinforce behaviors that are closer to the desired behavior, gradually increasing the criteria for reinforcement.
Latent learning: Learning that occurs without reinforcement, as demonstrated in Skinner's box where rats explored without immediate rewards, forming cognitive maps.

Token economy: A behavioral modification system where tokens are earned for desired behaviors and can be exchanged for rewards, effectively increasing positive behaviors.
Bandura's Bobo doll experiment: Demonstrated that children imitate aggressive behavior observed in adults, highlighting the role of observational learning in social contexts.

Understanding the differences between reflexes, instincts, and learned behaviors is crucial for grasping the foundations of psychology.
Classical conditioning involves associating a neutral stimulus with an unconditioned stimulus to elicit a conditioned response, while operant conditioning focuses on the consequences of behavior.
Observational learning, as proposed by Bandura, emphasizes the importance of social context and cognitive processes in learning.