Choice, rate of reinforcement, and the changeover delay
Alan Silberberg,Edmund Fantino +1 more
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The present study shows that equality between proportions of responses and proportions of reinforcements ("matching") is obtained when the value of the changeover delay is varied.Abstract:
Pigeons distribute their responses on concurrently available variable-interval schedules in the same proportion as reinforcements are distributed on the two schedules only when a changeover delay is used. The present study shows that this equality between proportions of responses and proportions of reinforcements (“matching”) is obtained when the value of the changeover delay is varied. When responses are partitioned into the set of rapid response bursts occurring during the delay interval and the set of responses occurring subsequently, the proportion of neither set of responses matches the proportion of reinforcements. Instead, each set deviates from matching but in opposite directions. Matching on the gross level results from the interaction of two patterns evident in the local response rates: (I) the lengthening of the changeover delay response burst is accompanied by a commensurate decrease in the number of changeovers; (2) the changeover delay response burst is longer than the scheduled delay duration. When delay responses are eliminated by introducing a blackout during the delay interval, response matching is eliminated; the pigeon, however, continues to match the proportion of time spent responding on a key to the proportion of reinforcements obtained on that key.read more
Citations
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DissertationDOI
*Response and time allocation on concurrent variable -interval schedules of signaled and unsignaled reinforcement
TL;DR: In this paper, the authors evaluate accounts of how behavior is allocated on concurrent variable-interval (VI) VI schedules and find that less extreme fix-and-sample patterns may be a fundamental characteristic of behavior engender by concurrent schedules.
Dissertation
Behavioural Correlates of the Equine Stereotypy Phenotype
TL;DR: The purpose of this thesis was to explore the behavioural phenotypes associated with endogenous basal ganglia dysfunction as a neural feature of equine oral stereotypy, and suggested an imbalance of the constituent cells that form the striatum may hold the key to identifying the aetiology of stereotypic behaviour.
Journal ArticleDOI
Concurrent schedules: Transient-state changeover behaviour
TL;DR: In this paper, a modification of the Myerson and Miezin model that accounts for the exponential function but does not make assumptions about reinforcement rates as controlling variables is presented, which can be explained by a model of changeover behaviour proposed by Myerson-Miezin (1980).
References
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Journal ArticleDOI
Relative and absolute strength of response as a function of frequency of reinforcement
TL;DR: The present experiment is a study of strength of response of pigeons on a concurrent schedule under which they peck at either of two response-keys and investigates output as a function of frequency of reinforcement.
Journal ArticleDOI
Preference and Switching under Concurrent Scheduling.
Journal ArticleDOI
Concurrent performances: reinforcement interaction and response independence.
TL;DR: When a pigeon's pecks on two keys were reinforced concurrently by two independent variable-interval (VI) schedules, one for each key, the response rate on either key was given by the equation: R(1)=R(1)/(r(1)+r(2))(5/6), where R is response rate, r is reinforcement rate, and the subscripts 1 and 2 indicate keys 1 and 1.
Journal ArticleDOI
Changeover delay and concurrent schedules: some effects on relative performance measures
TL;DR: The pigeon and the rat partition total response output between both schedules of a concurrent variable-interval pair is studied and the quantitative nature of a partition seems critically dependent on the relative rates with which the two schedules provide reinforcements for responding, in addition to the changeover delay.