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The asymmetry and temporal dynamics of incidental letter–location bindings in working memory

Verbal–spatial bindings are integral to routine cognitive operations (e.g., reading), yet the processes supporting them in working memory are little understood. Campo and colleagues [Campo, P., Poch, C., Parmentier, F. B. R., Moratti, S., Elsley, J. V., Castellanos, N., … Maestú, F. (2010). Oscillat...

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Autores principales: Elsley, Jane V., Parmentier, Fabrice B. R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Routledge 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4337733/
https://www.ncbi.nlm.nih.gov/pubmed/25482047
http://dx.doi.org/10.1080/17470218.2014.982137
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author Elsley, Jane V.
Parmentier, Fabrice B. R.
author_facet Elsley, Jane V.
Parmentier, Fabrice B. R.
author_sort Elsley, Jane V.
collection PubMed
description Verbal–spatial bindings are integral to routine cognitive operations (e.g., reading), yet the processes supporting them in working memory are little understood. Campo and colleagues [Campo, P., Poch, C., Parmentier, F. B. R., Moratti, S., Elsley, J. V., Castellanos, N., … Maestú, F. (2010). Oscillatory activity in prefrontal and posterior regions during implicit letter-location binding. Neuroimage, 49, 2807–2815] recently reported data suggesting obligatory letter–location binding when participants were directed to remember the letters in a display (of letters in locations), but no evidence for binding when instructed to remember the filled locations. The present study contrasted two explanations for this binding asymmetry. First, it may result from an obligatory dependence on “where” during the representation of “what” information, while “where” information may be held independently of its contents (the strong asymmetry hypothesis). Second, it may constitute a snapshot of a dynamic feature inhibition process that had partially completed by test: the asymmetrical inhibition hypothesis. Using Campo and colleagues’ task with a variable retention interval between display and test, we presented four consonants in distinct locations and contrasted performance between “remember letters” and “remember locations” instructions. Our data supported the strong asymmetry hypothesis through demonstrating binding in the verbal task, but not in the spatial task. Critically, when present, verbal–spatial bindings were remarkably stable, enduring for at least 15 seconds.
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spelling pubmed-43377332015-03-03 The asymmetry and temporal dynamics of incidental letter–location bindings in working memory Elsley, Jane V. Parmentier, Fabrice B. R. Q J Exp Psychol (Hove) Rapid Communication Verbal–spatial bindings are integral to routine cognitive operations (e.g., reading), yet the processes supporting them in working memory are little understood. Campo and colleagues [Campo, P., Poch, C., Parmentier, F. B. R., Moratti, S., Elsley, J. V., Castellanos, N., … Maestú, F. (2010). Oscillatory activity in prefrontal and posterior regions during implicit letter-location binding. Neuroimage, 49, 2807–2815] recently reported data suggesting obligatory letter–location binding when participants were directed to remember the letters in a display (of letters in locations), but no evidence for binding when instructed to remember the filled locations. The present study contrasted two explanations for this binding asymmetry. First, it may result from an obligatory dependence on “where” during the representation of “what” information, while “where” information may be held independently of its contents (the strong asymmetry hypothesis). Second, it may constitute a snapshot of a dynamic feature inhibition process that had partially completed by test: the asymmetrical inhibition hypothesis. Using Campo and colleagues’ task with a variable retention interval between display and test, we presented four consonants in distinct locations and contrasted performance between “remember letters” and “remember locations” instructions. Our data supported the strong asymmetry hypothesis through demonstrating binding in the verbal task, but not in the spatial task. Critically, when present, verbal–spatial bindings were remarkably stable, enduring for at least 15 seconds. Routledge 2015-03-04 2014-12-06 /pmc/articles/PMC4337733/ /pubmed/25482047 http://dx.doi.org/10.1080/17470218.2014.982137 Text en © 2014 The Author(s). Published by Taylor & Francis. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Rapid Communication
Elsley, Jane V.
Parmentier, Fabrice B. R.
The asymmetry and temporal dynamics of incidental letter–location bindings in working memory
title The asymmetry and temporal dynamics of incidental letter–location bindings in working memory
title_full The asymmetry and temporal dynamics of incidental letter–location bindings in working memory
title_fullStr The asymmetry and temporal dynamics of incidental letter–location bindings in working memory
title_full_unstemmed The asymmetry and temporal dynamics of incidental letter–location bindings in working memory
title_short The asymmetry and temporal dynamics of incidental letter–location bindings in working memory
title_sort asymmetry and temporal dynamics of incidental letter–location bindings in working memory
topic Rapid Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4337733/
https://www.ncbi.nlm.nih.gov/pubmed/25482047
http://dx.doi.org/10.1080/17470218.2014.982137
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