4.1 content (learning) Flashcards
what’s an unconditioned stimulus (UCR)?
- naturally triggers an unconditioned response or reflex
- you don’t need to learn to respond, it happens automatically
what’s an unconditioned response (UCR)?
reflex or natural response to a UCS
what’s a neutral stimulus (NS)?
doesn’t trigger any response
what’s a conditioned stimulus?
after NS is repeatedly paired with UCS, becomes conditioned stimulus
what are the key terms in classical conditioning?
- UCS
- UCR
- NS
- CS
- CR
what’s extinction?
when CS and UCS have not been paired for a while, CS no longer elicits CR strongly
what’s spontaneous recovery?
- when extinct responses reappear without new pairings
- weaker responses than original CR
what’s stimulus generalisation?
conditioned response to one object is exhibited in the presence of similar stimuli
what was the aim of pavlov’s study?
to investigate whether a UCR can be linked with a NS therefore causing a CR and learning to take place
what was the procedure of pavlov’s study?
- placed a dog in a box where it couldn’t smell or hear anything to avoid extraneous variables
- a tube was attached to its mouth to accurately measure saliva
- during the conditioning the neutral stimulus - metronome was paired with food (UCS) about 20 times
- the dog will salivate (UCR)
- after, the sound was presented without the food
what were the findings of Pavlov?
- dog started to salivate 9 seconds after hearing the metronome
- after 45 seconds it produced 11 drops of saliva
what was the conclusion of pavlov’s study?
NS when paired with a UCS would turn conditioned and produce a CR like the production of saliva
what’s a strength of pavlov’s study?
- high levels of internal validity
- used soundproof chamber to get rid of external sounds distracting the dogs that could be the NS
- makes it clear salivation was in response to the bell
- therefore, this demonstrates a cause-effect relationship between conditioning and behaviour
what’s a weakness of pavlov’s study?
- conducted on dogs so can’t generalise for humans
- humans have a larger cerebral cortex which permits more complex cognitive processes
- animals driven more by desires
- therefore, findings can’t be generalised to humans as physiology is different
what’s a strength of classical conditioning as an explanation for learning?
- Pavlov, Watson and rayner
- demonstrated by having dogs associate a metronome to food
- demonstrated in human baby who was conditioned to be afraid of a rat
- therefore, there are good controlled studies that demonstrates there is classical conditioning in learning
what’s a weakness of using classical conditioning as an explanation for learning?
- it can only explain a small range of behaviours
- can explain why someone learns to fear something, but not how they maintain that behaviour of avoiding it, such as avoiding dog parks cos ur scared of dogs
- therefore, classical conditioning can only be a partial explanation of learning behaviours
what are the terms in operant conditioning?
- positive reinforcement
- negative reinforcement
- positive punishment
- negative punishment
what’s positive reinforcement?
adding a pleasant stimulus (nice thing) to maintain a behaviour
what’s negative reinforcement?
removing an unpleasant stimulus to increase a behaviour
what’s positive punishment?
adding an unpleasant stimulus to decrease a behaviour
what’s a negative punishment(?
removing a pleasant stimulus to decrease a behaviour
what’s a primary reinforcer?
- occur naturally and are rewarding
- examples are food, water, sex
what are secondary reinforcers?
- rewarding as it’s linked to primary reinforcers
- example is money to buy food (primary reinforcer)
what’s a strength of using operant conditioning as an explanation for learning?
- supported by many studies
- skinner shows negative reinforcement when the rat pulls lever and electric shocks go away
- shows positive reinforcement when rats get food after pushing lever
- therefore, there is a firm evidence supporting existence of operant conditioning in animal learning