PSYCH-101 Lecture Notes - Lecture 5: Reinforcement, France 3, Operant Conditioning
6 Jan 2021
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Document Summary
Continuous reinforcement schedule every response of a particular type is reinforced: every time rat presses the lever, food comes out. Reinforcement is given after a fixed number of responses: e. g. Fr-3 means that reinforcement occurs after every third response regardless of how long it takes. If ratio is gradually increased, responses can be obtained with few reinforcements. May be a brief pause after each reinforcement because they know the next response isn"t reinforced. Reinforcement is given after a variable number of correct responses, based on an average: e. g. Vr-3 means that on average, 3 responses are required for reinforcement: for first 12, reinforcement may occur after 2, 3,6, and 11 responses. Less pausing after reinforcement because less predictable and next response can still cause a reinforcement. Vr are highly resistant to extinction because periods of payoff eventually lead to reinforcement. Less predictable than fi, so steadier response rate. Reinforcement schedule influence of learning and extinction.
