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Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory
Prospective memory (PM), or memory for realizing delayed intentions, was examined with an event-based paradigm while simultaneously measuring neural activity with high-density EEG recordings. Specifically, the neural substrates of monitoring for an event-based cue were examined, as well as those per...
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
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Frontiers Research Foundation
2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2821175/ https://www.ncbi.nlm.nih.gov/pubmed/20161996 http://dx.doi.org/10.3389/neuro.09.005.2010 |
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author | Knight, Justin B. Ethridge, Lauren E. Marsh, Richard L. Clementz, Brett A. |
author_facet | Knight, Justin B. Ethridge, Lauren E. Marsh, Richard L. Clementz, Brett A. |
author_sort | Knight, Justin B. |
collection | PubMed |
description | Prospective memory (PM), or memory for realizing delayed intentions, was examined with an event-based paradigm while simultaneously measuring neural activity with high-density EEG recordings. Specifically, the neural substrates of monitoring for an event-based cue were examined, as well as those perhaps associated with the cognitive processes supporting detection of cues and fulfillment of intentions. Participants engaged in a baseline lexical decision task (LDT), followed by a LDT with an embedded PM component. Event-based cues were constituted by color and lexicality (red words). Behavioral data provided evidence that monitoring, or preparatory attentional processes, were used to detect cues. Analysis of the event-related potentials (ERP) revealed visual attentional modulations at 140 and 220 ms post-stimulus associated with preparatory attentional processes. In addition, ERP components at 220, 350, and 400 ms post-stimulus were enhanced for intention-related items. Our results suggest preparatory attention may operate by selectively modulating processing of features related to a previously formed event-based intention, as well as provide further evidence for the proposal that dissociable component processes support the fulfillment of delayed intentions. |
format | Text |
id | pubmed-2821175 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Frontiers Research Foundation |
record_format | MEDLINE/PubMed |
spelling | pubmed-28211752010-02-16 Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory Knight, Justin B. Ethridge, Lauren E. Marsh, Richard L. Clementz, Brett A. Front Hum Neurosci Neuroscience Prospective memory (PM), or memory for realizing delayed intentions, was examined with an event-based paradigm while simultaneously measuring neural activity with high-density EEG recordings. Specifically, the neural substrates of monitoring for an event-based cue were examined, as well as those perhaps associated with the cognitive processes supporting detection of cues and fulfillment of intentions. Participants engaged in a baseline lexical decision task (LDT), followed by a LDT with an embedded PM component. Event-based cues were constituted by color and lexicality (red words). Behavioral data provided evidence that monitoring, or preparatory attentional processes, were used to detect cues. Analysis of the event-related potentials (ERP) revealed visual attentional modulations at 140 and 220 ms post-stimulus associated with preparatory attentional processes. In addition, ERP components at 220, 350, and 400 ms post-stimulus were enhanced for intention-related items. Our results suggest preparatory attention may operate by selectively modulating processing of features related to a previously formed event-based intention, as well as provide further evidence for the proposal that dissociable component processes support the fulfillment of delayed intentions. Frontiers Research Foundation 2010-02-09 /pmc/articles/PMC2821175/ /pubmed/20161996 http://dx.doi.org/10.3389/neuro.09.005.2010 Text en Copyright © 2010 Knight, Ethridge, Marsh and Clementz. http://www.frontiersin.org/licenseagreement This is an open-access article subject to an exclusive license agreement between the authors and the Frontiers Research Foundation, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited. |
spellingShingle | Neuroscience Knight, Justin B. Ethridge, Lauren E. Marsh, Richard L. Clementz, Brett A. Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory |
title | Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory |
title_full | Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory |
title_fullStr | Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory |
title_full_unstemmed | Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory |
title_short | Neural Correlates of Attentional and Mnemonic Processing in Event-Based Prospective Memory |
title_sort | neural correlates of attentional and mnemonic processing in event-based prospective memory |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2821175/ https://www.ncbi.nlm.nih.gov/pubmed/20161996 http://dx.doi.org/10.3389/neuro.09.005.2010 |
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