Document Detail


Effects of prefeeding, intercomponent-interval food, and extinction on temporal discrimination and pacemaker rate.
MedLine Citation:
PMID:  16406376     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This experiment investigated the effects of nonpharmacological disruption on temporal discrimination. Pigeons responded on a multiple schedule composed of fixed interval, color-matching, and temporal-discrimination components. The effects of three different disruptors (prefeeding, intercomponent-interval food, and extinction) were assessed. All disruptors decreased response rates during the fixed interval. Prefeeding and intercomponent-interval food had unsystematic effects on response patterning during the fixed interval, whereas extinction increased the relative response rate in the initial portions of the fixed interval. Accuracy of color matching was decreased by prefeeding and was not systematically affected by intercomponent-interval food and extinction. In the temporal-discrimination component, all disruptors flattened the psychophysical functions relating proportion long responses to sample duration. This result indicates a general disruption of temporal discrimination. In addition, parameter estimates derived from the behavioral theory of timing indicated all disruptors decreased pacemaker rate, a result consistent with the predictions of the theory. These results highlight the similarities between disruption of temporal discrimination by pharmacological and nonpharmacological manipulations.
Authors:
Ryan D Ward; Amy L Odum
Related Documents :
824036 - Cocaine self-injection behaviour under schedules of delayed reinforcement in monkeys.
1138366 - Learning: rapid aversive conditioning in the gastropod mollusk pleurobranchaea.
12175446 - Pavlovian autoshaping procedures increase plasma corticosterone levels in rats.
16811266 - Effects of dl-amphetamine under concurrent vi drl reinforcement.
14748086 - Detection, isolation, and characterization of exopolysaccharide produced by a strain of...
17755536 - Impact of food and predation on the snowshoe hare cycle.
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2006-01-06
Journal Detail:
Title:  Behavioural processes     Volume:  71     ISSN:  0376-6357     ISO Abbreviation:  Behav. Processes     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-01-31     Completed Date:  2006-05-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7703854     Medline TA:  Behav Processes     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  297-306     Citation Subset:  IM    
Affiliation:
Department of Psychology, 2810 Old Main Hill, Utah State University, Logan, UT 84322-2810, USA. ryanward@cc.usu.edu
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Attention / physiology*
Columbidae
Discrimination Learning / physiology*
Extinction, Psychological / physiology
Field Dependence-Independence
Reactive Inhibition*
Reinforcement (Psychology)*
Time Perception / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Appetitive latent inhibition in rats: preexposure performance does not predict conditioned performan...
Next Document:  Responses of the diaphragm to transcranial magnetic stimulation during wake and sleep in humans.