recap lecture Flashcards
(81 cards)
what is behaviourism?
whose explanations about learning are based on the relationship between observable behaviours and environmental events rather than internal ones
what is associative learning?
any learning process during which new behaviours are associated with certain events and stimuli
what are the 2 different kinds of associative learning ?
classical conditioning and operant conditioning
what is classical conditioning?
a learning process in which one learns to link 2 or more stimuli in their minds and react to one of them as tho it was the other one
what is operant conditioning?
form of learning with a voluntary response - everything to do with punishments and rewards
define positive rewards
pleasant event that follows target behaviour (bar of chocolate for attending training)
what is the difference between positive and negative reinforcement ?
positive is the addition of something
negative is the removal of something
define a negative reward
unpleasant event is removed after the targeted behaviour is shown (coach stops nagging once player comes to training on time)
define positive punishment
the addition of an unpleasant event follows unwanted behaviour (pupil late, stay back and tidy up entire classroom after the practice)
define negative punishment
the removal of a pleasant event following unwanted behaviour (player cannot be selected for a team)
what is reinforcement ?
punishment or reward
what is generalisation ?
the tendency for the conditioned stimulus to evoke similar response after the response has been conditioned.
(hit in the head and got concussion during football game - anxiety and worry every time he sees a football or plays a match)
what is extinction?
gradual elimination of a tendency to perform a response(i.e. targeted behaviour (teaching someone to come on time, remove rewards for coming on time, stop coming on time)
what is shaping?
the idea of rewarding a behaviour which is a successful approximation of the targeted behaviour
what are the 4 stages of shaping?
reward successful approximations of the task.
gradual development
ignore attempts furthest away from targeted behaviour
refine reinforcement to approximations closest to the targeted behaviour
what is the importance of scheduling reinforcement ?
the time and frequency, how many time and how often
what are the 2 possibilities of scheduling reinforcement ?
continuous and intermittent
the definition of continuous?
reinforcement occurs after every response
what are the pros and cons to continuous?
pros - faster results
cons - quicker extinction of tagerted behaviour
the definition of intermittent?
reinforcement after some response
what are the pros and cons of intermittent?
pros - longer term mention of targeted behaviour
cons - takes longer to condition behaviour
what are the 4 reinforcement schedules that are possible?
fixed ratio, variable ratio, fixed intervals and variable intervals
what is fixed ratio ?
reinforcement occurs after x amount of times
what is an example of fixed ratio?
football tackle gets a helmet sticker after every 4th sack