L3&4 Learning Flashcards
What is learning
- enduring
- observable behaviour
- results from experience
Behaviour definition
anything and everything organisms do
Simple learning
Learning can occur with a single stimulus if it is repeated
Simple learning - Habituation
decrease in the strength of an elicit behaviour following repeated presentations of the stimulus that naturally elicits that response
- learned decrease
Simple learning - Sensitisation
Increase in the strength of an elicit response following repeated presentations of the stimulus that naturally elicits that response
- occur when stimulus is very intense or has evolutionary relevance for danger
Classical conditioning
Phenomenon whereby an initially external stimulus comes to elicit a new response because it has been paired with a stimulus that naturally elicits a response
Who discovered classical conditioning
Ivan Pavlov
Unconditioned stimulus (UCS)
stimulus that naturally elicits a response before conditioning occurs
Unconditioned response (UCR)
The innate response that is elicited by the UCS
- conditioning is not necessary
Conditioned stimulus (CS)
Initially neutral stimulus that begins to elicit a new response after it is paired with the UCS
Conditioned response (CR)
response that is elicited by the CS after classical conditioning has occurred
Acquisition
gradual learning of a conditioned response that occurs when the CS and UCS are paired together
- normally occurs gradually
Extinction
gradual wreaking of the conditioned response when the CS is no longer presented with the UCS
Spontaneous recovery
re-emergence of the conditioned response after successful extinction when the CS is encountered after a delay
does extinction erase the original acquisition learning?
extinction does not erase the original acquisition learning –> creates a new learning which suppresses the acquisition learning
generalisation
Adaptive, allows important learning to extend to situations that are similar
Discrimination
tenancy for a response to be elicited more by one stimulus than another
- can be trained
Factor influencing conditioning - Timing
classical conditioning works best when
- CS is presented before the UCS
- when the CS and UCS are close together in time
Factor influencing conditioning - Predictability
- CS must provide the organism with information on whether the UCS is likely to occur
- CS must predict the occurrence of the UCS
Factor influencing conditioning - Novelty
conditioning works best when the CS is novel
Salience
Conditioning works best when the CS is noticeable but not overpowering
Treatment for fear
Exposure therapy – extinction
relapse rates are high because extinction is a learned suppression of the original acquisition learning
Goal of modern research
strengthen extinction learning and reduce relapse of fear after exposure therapy
Other applications of classical conditioning
- worsen addictions
CSs with a drug (UCS) become conditioned and can elicit cravings - likes and dislikes
- advertisements
pairs new products (CSs) with around or liked UCSs