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Evidence of structure and persistence in motivational attraction to serial Pavlovian cues
Sign-tracking is a form of autoshaping where animals develop conditioned responding directed toward stimuli predictive of an outcome even though the outcome is not contingent on the animal's behavior. Sign-tracking behaviors are thought to arise out of the attribution of incentive salience (i.e...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Cold Spring Harbor Laboratory Press
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5772391/ https://www.ncbi.nlm.nih.gov/pubmed/29339559 http://dx.doi.org/10.1101/lm.046599.117 |
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author | Smedley, Elizabeth B. Smith, Kyle S. |
author_facet | Smedley, Elizabeth B. Smith, Kyle S. |
author_sort | Smedley, Elizabeth B. |
collection | PubMed |
description | Sign-tracking is a form of autoshaping where animals develop conditioned responding directed toward stimuli predictive of an outcome even though the outcome is not contingent on the animal's behavior. Sign-tracking behaviors are thought to arise out of the attribution of incentive salience (i.e., motivational value) to reward-predictive cues. It is not known how incentive salience would be attributed to serially occurring cues, despite cues often occurring in a sequence in the real world as reward approaches. The experiments presented here demonstrate that reward-proximal cue responding is not altered by the presence of a distal reward cue (Experiment 1), and similarly that reward-distal cue responding which animals favor, is not altered by the presence of a reward-proximal cue (Experiment 2). Extinction of reward-proximal cues after training of the serial sequence leads to a generalized reduction in lever responding (Experiment 3). Together, we show that both Pavlovian serial lever cues acquire motivational value. These experiments also provide support to the notion that sign-tracking responses are insensitive to changes in outcome value, and that responding to serial cues creates a distinct context for outcome value. |
format | Online Article Text |
id | pubmed-5772391 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Cold Spring Harbor Laboratory Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-57723912019-02-01 Evidence of structure and persistence in motivational attraction to serial Pavlovian cues Smedley, Elizabeth B. Smith, Kyle S. Learn Mem Research Sign-tracking is a form of autoshaping where animals develop conditioned responding directed toward stimuli predictive of an outcome even though the outcome is not contingent on the animal's behavior. Sign-tracking behaviors are thought to arise out of the attribution of incentive salience (i.e., motivational value) to reward-predictive cues. It is not known how incentive salience would be attributed to serially occurring cues, despite cues often occurring in a sequence in the real world as reward approaches. The experiments presented here demonstrate that reward-proximal cue responding is not altered by the presence of a distal reward cue (Experiment 1), and similarly that reward-distal cue responding which animals favor, is not altered by the presence of a reward-proximal cue (Experiment 2). Extinction of reward-proximal cues after training of the serial sequence leads to a generalized reduction in lever responding (Experiment 3). Together, we show that both Pavlovian serial lever cues acquire motivational value. These experiments also provide support to the notion that sign-tracking responses are insensitive to changes in outcome value, and that responding to serial cues creates a distinct context for outcome value. Cold Spring Harbor Laboratory Press 2018-02 /pmc/articles/PMC5772391/ /pubmed/29339559 http://dx.doi.org/10.1101/lm.046599.117 Text en © 2018 Smedley and Smith; Published by Cold Spring Harbor Laboratory Press http://creativecommons.org/licenses/by-nc/4.0/ This article is distributed exclusively by Cold Spring Harbor Laboratory Press for the first 12 months after the full-issue publication date (see http://learnmem.cshlp.org/site/misc/terms.xhtml). After 12 months, it is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/. |
spellingShingle | Research Smedley, Elizabeth B. Smith, Kyle S. Evidence of structure and persistence in motivational attraction to serial Pavlovian cues |
title | Evidence of structure and persistence in motivational attraction to serial Pavlovian cues |
title_full | Evidence of structure and persistence in motivational attraction to serial Pavlovian cues |
title_fullStr | Evidence of structure and persistence in motivational attraction to serial Pavlovian cues |
title_full_unstemmed | Evidence of structure and persistence in motivational attraction to serial Pavlovian cues |
title_short | Evidence of structure and persistence in motivational attraction to serial Pavlovian cues |
title_sort | evidence of structure and persistence in motivational attraction to serial pavlovian cues |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5772391/ https://www.ncbi.nlm.nih.gov/pubmed/29339559 http://dx.doi.org/10.1101/lm.046599.117 |
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