Learning Chapt 7 Flashcards
- what is learning shorthand for
a collection of different techniques - procedures - outcomes - CHANGE and oragnism’s behaviour
- learning def
the acquisition of new knowledge/ skills / responses from experience that results in a relatively permanent change in the state of the learner
- 3 key ideas for learning
1 based on experience 2 produces changes in the organism 3 relatively permanent changes
- habituation
a general process in which repeated or prolonged exposure to a stimulus results in a gradual reduction in responding ie violence in 150s-now movies
- this animal exhibits habituation
Aplysia - withdraws its gill - response gradually weakens after repeated
- sensitization
presentation of a stimulus leads to increased response to a later stimulus ie Aplysia after shock
- behaviourist view of learning & who starts
no mental activity required - John Watson starts - measurable changes only
- classical conditioning def + Pavlov
a neutral stimulus produces a response after being paired with a stimulus that naturally produces a response - ie dogs salivating to neutral stimuli ie bell
- Pavlov dogs produced “anticipatory response” as soon as put in harness. what does this demo
4 elements of classical conditioning 1 US unconditioned stimulus 2 UR unconditioned response 3 CS conditioned stimulus 4 CR conditioned response
- def US
unconditioned stimulus - somehting that reliably produces a naturaly occuring reaction in an organism
- def UR
unconditioned reaction - a reflexive reaction reliably produced by unconditioned stimulus
- def CS + context
conditioned stimulus - previously neutral stimulus that produces reliable response in organism after paired with US - more than simple tone - needs context ie anticipation
- def CR
a reaction that resembles an unconditioned response - produced by a conditioned stimulus ie sound of bell and food
- why does dog sense/get ready to eat
presentation of food US associated with complex CS (moving around) = CS alone signales food is on the way
- when did pavlovs findings come out
1923
- acquisition
period of association between CS & US - they are presented together
- explain response amounts in acquisition/extinction/spontaneous recovery
acquistion - low then rise and tapers off - extinction lessens response back down when CS alone - after breaks ie 24 hr spontaneous recoveries heightene for a bit
- second-order conditioning + Pavlov example
conditioning where CS is paired with a stimulus that became associated with US in earlier procedure - ie Pavlov intros black square to reliable tone
- what are cue exposure therapies
addict exposed to drug cues without drug = extinction of ontext assocation
- extinction def
gradual elimination of a learned response that occurs when CS is repeatedly presented without the US
- spontaneous recovery def
tendency of a learned behaviour to recover from extinction after a rest period
- what is generalization + example
CR observed even if CS is slightly different than CS in acquisition ie new can opener for dog - more new CS change = less response
- discrimination def + generalization tie in
capacity to distinguish between similar but distinct stimuli - shows whhy more different CS gets less CR
- who was little Albert/ Watson’s purpose
9 month old - unemotional - WAtson wants to classicaly condition to be emotionally afraid
- watson experiment with little albert
acquisition phase of classical conditioning - albert scared by hammer on steel bar - paired with white rat for CS - generalization was shown with white rabbit + seal-fur coat
- why did dogs not salivate when Pavlov approached
Pavlov not reliable indicator of food - he could be doing other things
- Rescorla/Wagner theory
classical conditioning occurs when the animal has learned to set up an expectation - CS serves to set op expectation → array of behaviours- ie pavlov not reliabel = no expectation
- what does Rescorla/Wagner model account for
variety of classical conditioning phenomena - ie CS easier when the event is unfamiliar - Rescorla-Wagner model - cognitive elements are not necessarily conscious
- when is conciousness required for conditioning to occur
break between CS and US
- Pavlov’s takeaway from his research
providing insights into how the brain works - he was trained in medecine
- explain Thomson eyeblink conditioning focus
CS tone follwed by US puff of air - eyeblink response to CS alone - cerebellum critical for occurence of eyeblink conditioning (motor)
- amygdala responsible for what kind of conditioning
emotional
- when do rats exhibit behavioural freezing
from sudden painful stimuli - amygdala activated - (fear conditioning)