approaches to learning
behaviourist approaches to learning:
* classical conditioning
* operant conditioning
social-cognitive approaches to learning:
* observational learning
learning
a relatively permanent change in behaviour that occurs as a result of experience
classical conditioning
three-phase learning process
ivan pavlov’s experiment
Ivan Pavlov developed equipment to measure the amount of saliva that dogs produced in response to food being placed in front of them.
neutral stimulus
stimulus that produces no naturally occurring response
unconditioned stimulus
the stimulus that produces an unconscious response
conditioned stimulus
a stimulus that when repeatedly paired with an unconditioned stimulus, produces a conditioned response.
conditioned response
a learned response that occurs upon presentation of a conditioned stimulus.
unconditioned response
a naturally occurring behaviour in response to stimulus
acquisition
the period of initial learning in classical conditioning in which the learner begins to associate a neutral stimulus with an unconditioned stimulus so that the neutral stimulus will begin to elicit the conditioned response
extinction
when the conditioned response no longer occurs for an extended period of time
operant conditioning
a learning process in which the likelihood of a voluntary behaviour occurring is determined by its consequences of that behaviour
* If the consequences are desirable, behaviour is likely to be repeated.
* if the consequences are undesirable, behaviour is not likely to be repeated.
classical conditioning vs operant conditioning
three-phase model of operant conditioning
positive / negative reinforcement
types of consequences
positive reinforcement: the addition of a desirable stimulus -
increases likelihood of behaviour occurring
* e.g. getting a gold star for doing your homework
negative reinforcement: the removal of an undesirable stimulus - increases likelihood of behaviour occurring
* e.g. being let off doing chores at home for getting a good SAC result
positive / negative punishment
types of consequences
positive punishment: the addition of an undesirable stimulus - decreases likelihood of behaviour occurring
* e.g. getting detention for not doing your homework
negative punishment: (also known as response cost) – the
removal of a desirable stimulus - decreases the likelihood of behaviour occurring
* e.g. losing TV privileges for swearing at home
effectiveness of consequences
stimulus generalisation
occurs when the same behaviour is produced in response to a different stimulus, in the hopes of receiving the same consequence.
* e.g. getting a good SAC result in Biology after studying hard, so doing the same or other subjects as well.
* e.g. getting a warning for swearing at work, so stopping swearing not just at work but also at home.
stimulus discrimination
occurs when a behaviour is only produced in response
to the original stimulus.
* e.g. good behaviour for mum but not for dad.
* e.g. working hard in one subject but not others.
spontaneous recovery
the return of a previously extinguished conditioned response again, following a period of extinction
* e.g: A dog learns that sitting on command will result in the
reward of a treat, however if they no longer get the treat, they may start ignoring the command. Following extinction and a rest period, the dog may once again sit on command in the hope of getting a treat.
b.f. skinner’s experiment
When lab rats press a lever when a green light is on, they receive a food pellet as a reward. When they press the lever when a red light is on, they receive a mild electric shock. As a result, they learn to press the lever when the green light is on and avoid the red light.
observational learning
a social-cognitive approach to learning that occurs when a learner observes a model’s action and their consequences to guide their future actions.
* observational learning is known as modelling because the person who the learner is observing is ‘modelling’ the behaviour to be learned
model in observational learning
the individual who is performing the behaviour that is being
watched/observed
stages of observational learning