Revision Booklet Flashcards
conditioning
Use Pavlov’s experiment to define the process of classical conditioning
*Before conditioning:
*Neutral stimulus [bell] -> no response
Unconditioned stimulus [food] -> Unconditioned response [salivation]
Aquisition
Neutral stimulus + Unconditioned stimulus -> Unconditioned response
REPEATED PARING OF THE STIMULI
Performance
Conditioned stimulus [bell] -> Conditioned response [salivation]
conditioning
What is operant conditioning?
A learning process by which the liklihood of a particular behaviour occuring is determined by the consequences of that behaviour. [positive and/or negative]
conditioning
According to Thorndike’s study, what is the law of effect? [consequences of a behaviour]
If a behaviour is followed by satisfying consequences it is strengthened
If a behaviour is followed by unpleasant consequences it is weakened
conditioning
What is reinforcement as according to Skinner’s operant conditioning?
any stimulus that strengthens or increases the likelihood of a behaviour that follows it. rinforcer comes after the response and is therefore the UCS
conditioning
Define the components of the schedules of reinforcement (2)
- Continuous reinforcement - the correct response is reinforced every time it is given
- Partial reinforcement - when only some responses are reinforced
conditioning
Define fixed interval schedules and the effects on the learner in partial reinforcement
a) fixed interval schedule - delivered after fixed time [10 seconds]
moderate response, more erratic, once it is realised that time is the factor, response reate drops and then increases as the time for reinforcer approaches
conditioning
Define fixed ratio schedule and the effects on the learner in partial reinforcement
b) fixed ratio schedule - after fixed number of correct responses
predictive, so very effective during aquisition phase (frequency needs to be high), once aquisition is complete, frequency can be reduced
conditioning
Define Variable interval and the effects on the learner in partial reinforcement
c) Variable interval - occurs on average time interval [4 - 16 seconds]
low but stable rate of response, behaviour is extinguished more slowly
conditioning
Define variable ratio schedule and the effects on the learner in partial reinforcement
d) variable ratio schedule - reinforcement occurs on the basis of an average number of correct responses [poker machine]
quickly aquired response and one that is difficult to extinguish. Unpredictability of the reinforcer seems to lure participants more than a fixed ratio
conditioning
What is shaping in operant conditioning
widely used for animal training–a reinforcer is given for any response that successively qpproximates and leads to the desired response
conditioning
what is punishment in operant conditioning – how is it different to negative reinforcement
Punishment is any stimulus that is unpleasant and which generally decreases the likelihood of the behaviour recurring - consequence needs to be administered immediately and consistently after undesired response
negative reinforcement aims to INCREASE the probability of a response occuring [correct response stops an unpleasant stimulus -* seatbelt stops car alarm*]
whereas
Punishment aims to DECREASE the probability of a response occuring
[unpleasant stimulus follows an inappropriate behaviour taze suspect who runs
conditioning
What is preparedness in operant conditioning
associations are learned more readily than others and responses cannot be conditioned with equal ease
scared of spiders not cars
conditioning
What is the aquisition phase in classical conditioning
refers to the phase when the organism is aquiring the response that it will eventually learn
conditioning
What is extinction in classical conditioning
when a conditioned response no longer occurs
occurs over a period of time when the UCS is withdrawn and the CS alone continues to be presented
[remove food at bell sound]
conditioning
What is spontaneous recovery in classical conditioning
after extiniction and a rest period, the organism may once again show the CR when the CS is presented
response is usually weaker and of lesser duration than the original CR