Operant conditioning Flashcards
Operant conditioning define
a type of learning for which the likelihood of a particular response occurring is determined by the consequences of that response.
DBC conditioning
Antecedent (discriminative stimulus)-Behaviour-Consequence
- Skinner noted that before the behaviour occurred, the conditions needed to be right.
DBC conditioning - operant response
o Operant response: the behaviour that occurs as a result of the antecedent condition or can be modified by consequences.
DBC conditioning - discriminative stimulus
- o Discriminative stimulus/antecedent condition: the condition that influences behaviour by predicting the likely outcome of a behaviour
DBC - stimulus
o Consequence: the stimulus that forms as a result of the response.
Reinforcement
applying a positive stimulus (action or event) or removing a negative stimulus to strengthen or increase the likelihood of a response.
Positive reinforcement
being rewarded which strengthens a response by providing a pleasant or satisfying consequence (e.g. a student receives $100 from her parents for getting an A+ on her mid-year exam, and thus continues to work harder to get better results on her end-of-year exam).
Negative reinforcement
the removal, reduction or prevention of an unpleasant stimulus (e.g. taking tablets to fix a headache will increase the chances of taking the tablets next time to get rid of a headache).
Punishment
any stimulus that weakens or decrease the likelihood of a response (behaviour)
Positive punishment
when a behaviour is followed by a negative consequence (e.g. getting smacked by parents when you use profanity).
Negative punishment
when something desirable is removed (e.g. being fined for speeding on the roads in which the desirable stimulus is money)
Continious reinforcement
when every correct response is reinforced
Partial reinforcement
when only some correct responses are reinforced; responses conditioned under particular reinforcement are stronger in that they usually take longer to extinguish than responses conditioned using CRF.
Fixed ratio schedule
reinforcement is delivered after a set number of correct responses (e.g. payment of $10 for every 100 newspapers sold. - Moderately resistant to extinction. - Predictability of the reinforcement often leads to reduced response rate just after the delivery of the reinforcer until the reinforcer is getting close.
Variable ratio schedule
reinforcer is given after an irregular number of correct responses (e.g. poker machines). - Effectively maintains targeted behaviour, due to unpredictability of the reinforcement - Extinction of behaviour takes longer than fixed ratio.