Chapter 5 Flashcards
Instrumental conditioning
Behaviors that occurs because it was previously effective in producing certain consequences
law of effect
Proposed by Thorndike. The law of effect states that if a response R in the presence of a stimulus S is followed by a satisfying event, the association between the stimulus S and the response R becomes strengthened. If the response is followed by an annoying event, the S-R association is weakened.
discrete-trial procedures
Each training trial begins with putting the animal in the apparatus and ends with removal of the animal after the instrumental response has been performed.
latency
The latency is the time it takes the animal to leave the start box and begin running down the alley. Typically, latencies become shorter as training progresses.
free-operant procedures
experimental procedures that allow the animal to repeat the instrumental response without constraint over and over again without being taken out of the apparatus until the end of an experimental session.
B.F. Skinner
operant response
is defined in terms of the effect that the behavior has on the environment.
Behavior is not defined in terms of particular muscle movements but in terms of how the behavior operates on the environment.
instrumental response
any response that is required to produce a desired consequence because it is instrumental in producing a particular outcome
magazine training
The preliminary phase of instrumental conditioning in which a stimulus is repeatedly paired with teh reinforcer to enable the participant to learn to go and get the reinforcer when it is presented. The sound of the food-delivery device, for example, may be repeatedly paired with food so that the animal will learn to go to the food cup when food is delivered
response shaping
reinforcement of successive approximations to a desired instrumental response
Successful shaping of behavior involves 3 components
(1) clearly define the final response you want the trainee to respond
(2) you have to clearly assess the starting level of performance
(3) you have to divide the progression from the starting point to the final target behavior into appropriate training steps or successive approximations.
appetitive stimulus
A pleasant event
aversive stimulus
An unpleasant stimulus
Positive reinforcement
Response-outcome contingency - Positive: response produces an appetitive stimulus
Result: reinforcement or increase in response rate
Punishment
Also known as positive punishment
Response-outcome contingency - Positive: response produces an aversive stimulus
Result: punishment or decrease in response rate
Negative reinforcement
Response-outcome contingency - Negative: Response eliminates or prevents the occurence of an aversive stimulus
Result: reinforcement or increase in response rate