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Response-independent conditioned rei...

DeFulio, Anthony L.

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Response-independent conditioned reinforcement in an observing procedure.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Response-independent conditioned reinforcement in an observing procedure./
Author:	DeFulio, Anthony L.
Description:	91 p.
Notes:	Adviser: Timothy D. Hackenberg.
Contained By:	Dissertation Abstracts International68-06A.
Subject:	Design and Decorative Arts. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3271124
ISBN:	9780549100584

Response-independent conditioned reinforcement in an observing procedure.
DeFulio, Anthony L.

Response-independent conditioned reinforcement in an observing procedure. - 91 p.

Adviser: Timothy D. Hackenberg.

Thesis (Ph.D.)--University of Florida, 2007.

Pigeons' pecks on a response key produced food according to a variable-interval (VI) schedule, in which responses produced food every 40 s, on average. These VI periods, or components, alternated in irregular fashion, with extinction (EXT) components, in which food was unavailable. Pecks on a second (observing) key briefly produced exteroceptive stimuli (houselight flashes) correlated with the component schedule currently in effect. In Experiment 1, these stimuli could be produced every 20 s, on average, by responses on the observing key, and also occurred independently of responding. The rate of such response-independent stimulus presentation did not produce systematic changes in observing behavior. Across phases in Experiment 1, the proportion of session time spent in the EXT component was adjusted from 0.5 to 0.75 (Group A), and 0.25 (Group B). Increases in the proportion of session time spent in EXT produced increases in the rate of observing. In Experiment 2, density of stimulus presentation was held constant while the dependency between observing and presentation of the stimuli was decreased across conditions. Results indicate that rate of observing decreased as the dependency between responses and stimulus presentations was decreased. Furthermore, results indicate that discriminative control by the schedule-correlated stimuli was systematically weakened as dependency was decreased. Overall, these results show that conditioned reinforcers function similarly to unconditioned reinforcers with respect to response-consequence dependencies, and that stimulus control is greatly enhanced under conditions in which the relevant stimuli are produced by an organism's behavior.

ISBN: 9780549100584Subjects--Topical Terms:

1024640
Design and Decorative Arts.

Response-independent conditioned reinforcement in an observing procedure.
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100 1 $a DeFulio, Anthony L. $3 1272186
245 1 0 $a Response-independent conditioned reinforcement in an observing procedure.
300 $a 91 p.
500 $a Adviser: Timothy D. Hackenberg.
500 $a Source: Dissertation Abstracts International, Volume: 68-06, Section: A, page: 2220.
502 $a Thesis (Ph.D.)--University of Florida, 2007.
520 $a Pigeons' pecks on a response key produced food according to a variable-interval (VI) schedule, in which responses produced food every 40 s, on average. These VI periods, or components, alternated in irregular fashion, with extinction (EXT) components, in which food was unavailable. Pecks on a second (observing) key briefly produced exteroceptive stimuli (houselight flashes) correlated with the component schedule currently in effect. In Experiment 1, these stimuli could be produced every 20 s, on average, by responses on the observing key, and also occurred independently of responding. The rate of such response-independent stimulus presentation did not produce systematic changes in observing behavior. Across phases in Experiment 1, the proportion of session time spent in the EXT component was adjusted from 0.5 to 0.75 (Group A), and 0.25 (Group B). Increases in the proportion of session time spent in EXT produced increases in the rate of observing. In Experiment 2, density of stimulus presentation was held constant while the dependency between observing and presentation of the stimuli was decreased across conditions. Results indicate that rate of observing decreased as the dependency between responses and stimulus presentations was decreased. Furthermore, results indicate that discriminative control by the schedule-correlated stimuli was systematically weakened as dependency was decreased. Overall, these results show that conditioned reinforcers function similarly to unconditioned reinforcers with respect to response-consequence dependencies, and that stimulus control is greatly enhanced under conditions in which the relevant stimuli are produced by an organism's behavior.
590 $a School code: 0070.
650 4 $a Design and Decorative Arts. $3 1024640
650 4 $a Psychology, Experimental. $3 517106
690 $a 0389
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710 2 $a University of Florida. $3 718949
773 0 $t Dissertation Abstracts International $g 68-06A.
790 $a 0070
790 1 0 $a Hackenberg, Timothy D., $e advisor
791 $a Ph.D.
792 $a 2007
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