pavlov Flashcards
define classical conditioning
learning through association
define unconditioned stimulus
any stimulus that produces a natural, unlearnt response
define neutral stimulus
a stimulus that doesn’t cause a natural response
define conditioned stimulus
a new stimulus associated with the UCS so it now produces the same response on its own
define unconditioned response
any response that occurs naturally
define conditioned response
learnt behaviour
define extinction
CS is continually presented without UCS then the CR dies out
define spontaneous recovery
CR isn’t reinforced so it will be extinguished but after a period of time the response may appear
define discrimination
CR is produced only by the original stimulus, not by other similar stimuli
define generalisation
extension of the CR from the original stimulus to similar stimuli
define one trial learning
when conditioning occurs immediately after 1 trial only
what is one trial learning associated with
phobias
what was the aim
to study how the cerebral cortex works in making associations and to look for a mechanism linking reflexes to the cerebral cortex
what was the procedure
used a variety of NS including a metronome, bell, and buzzer as no specific behavioural response was caused by those in dogs
he paired the NS with food to condition the NS to produce the same response
first he slid in a food bowl, then blowing meat powder into the dogs mouth from an adjacent room
before giving the dog food, he would use a metronome and after several pairings of the food with the metronome, the dog began salivation to the sound of the metronome
he continued this same method using the bell and buzzer
what was done to eliminate extraneous variables
dog was isolated in a room and made sure it couldn’t hear footsteps, was secured in a harness and attached a test tube to a hole in the cheek of the dogs to measure/collect saliva
what were the results
when using the metronome, salivation started after 9 seconds and by 45 seconds 11 drops of saliva had been collected
the dog would only salivate when the NS/CS was presented before the food not after
the dog had to be alert and not distracted for salivation to occur
evaluate the generalisability
research was conducted using dogs
human behaviour is more complex due to cognitive and emotional factors
results cant be fully extrapolated
evaluate the reliability
procedures were tightly controlled and can easily be replicated (isolating dogs and precise timings for presenting stimuli)
standardised methods ensure associations can be consistently reproduced making findings more credible and reliable
high reliability
evaluate the validity
highly scientific as objective measures like measuring saliva with instruments and controlled extraneous variables
reduces risk of confounding variables ensuring results accurately reflect process of classical conditioning
high internal validity
evaluate the ethics
dogs were isolated, restrained and exposed to repeated procedures, can cause stress
ethical guidelines were less developed, modern standards would question treatment of dogs, limiting ethical acceptability
raised ethical concerns