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The prelimbic cortex directs attention toward predictive cues during fear learning
The prelimbic cortex is argued to promote conditioned fear expression, at odds with appetitive research implicating this region in attentional processing. Consistent with an attentional account, we report that the effect of prelimbic lesions on fear expression depends on the degree of competition be...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Cold Spring Harbor Laboratory Press
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4436653/ https://www.ncbi.nlm.nih.gov/pubmed/25979990 http://dx.doi.org/10.1101/lm.038273.115 |
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author | Sharpe, Melissa J. Killcross, Simon |
author_facet | Sharpe, Melissa J. Killcross, Simon |
author_sort | Sharpe, Melissa J. |
collection | PubMed |
description | The prelimbic cortex is argued to promote conditioned fear expression, at odds with appetitive research implicating this region in attentional processing. Consistent with an attentional account, we report that the effect of prelimbic lesions on fear expression depends on the degree of competition between contextual and discrete cues. Further, when competition from contextual cues is low, we found that PL inactivation resulted in animals expressing fear toward irrelevant discrete cues; an effect selective to inactivation during the learning phase and not during retrieval. These data demonstrate that the prelimbic cortex modulates attention toward cues to preferentially direct fear responding on the basis of their predictive value. |
format | Online Article Text |
id | pubmed-4436653 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Cold Spring Harbor Laboratory Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-44366532016-06-01 The prelimbic cortex directs attention toward predictive cues during fear learning Sharpe, Melissa J. Killcross, Simon Learn Mem Brief Communication The prelimbic cortex is argued to promote conditioned fear expression, at odds with appetitive research implicating this region in attentional processing. Consistent with an attentional account, we report that the effect of prelimbic lesions on fear expression depends on the degree of competition between contextual and discrete cues. Further, when competition from contextual cues is low, we found that PL inactivation resulted in animals expressing fear toward irrelevant discrete cues; an effect selective to inactivation during the learning phase and not during retrieval. These data demonstrate that the prelimbic cortex modulates attention toward cues to preferentially direct fear responding on the basis of their predictive value. Cold Spring Harbor Laboratory Press 2015-06 /pmc/articles/PMC4436653/ /pubmed/25979990 http://dx.doi.org/10.1101/lm.038273.115 Text en © 2015 Sharpe and Killcross; 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 | Brief Communication Sharpe, Melissa J. Killcross, Simon The prelimbic cortex directs attention toward predictive cues during fear learning |
title | The prelimbic cortex directs attention toward predictive cues during fear learning |
title_full | The prelimbic cortex directs attention toward predictive cues during fear learning |
title_fullStr | The prelimbic cortex directs attention toward predictive cues during fear learning |
title_full_unstemmed | The prelimbic cortex directs attention toward predictive cues during fear learning |
title_short | The prelimbic cortex directs attention toward predictive cues during fear learning |
title_sort | prelimbic cortex directs attention toward predictive cues during fear learning |
topic | Brief Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4436653/ https://www.ncbi.nlm.nih.gov/pubmed/25979990 http://dx.doi.org/10.1101/lm.038273.115 |
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