The different oscillation patterns of alpha band in the early and later stages of working memory maintenance
Copyright © 2016 Elsevier Ireland Ltd. All rights reserved..
A putative functional role for alpha oscillations in working memory remains controversial. However, recent evidence suggests that such oscillation may reflect distinct phases of working memory processing. The present study investigated alpha band (8-13Hz) activity during the maintenance stage of working memory using a modified Sternberg working memory task. Our results reveal that alpha power was concentrated primarily in the occipital cortex and was decreased during the early stage of maintenance (0-600ms), and subsequently increased during the later stage of maintenance (1000-1600ms). We suggest that reduced alpha power may be involved in focused attention during the working memory maintenance, whereas increased alpha power may reflect suppression of visual stimuli to facilitate internal processing related to the task. This interpretation is generally consistent with recent reports suggesting that variations in alpha power are associated with the representation and processing of information in the discrete time intervals during the working memory maintenance.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:633 |
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| Enthalten in: |
Neuroscience letters - 633(2016) vom: 28. Okt., Seite 220-226 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Xie, Yuanjun [VerfasserIn] |
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| Links: |
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| Themen: |
Alpha band |
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| Anmerkungen: |
Date Completed 26.07.2017 Date Revised 01.11.2017 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.neulet.2016.09.047 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 4 | |a The different oscillation patterns of alpha band in the early and later stages of working memory maintenance |
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| 500 | |a Date Revised 01.11.2017 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2016 Elsevier Ireland Ltd. All rights reserved. | ||
| 520 | |a A putative functional role for alpha oscillations in working memory remains controversial. However, recent evidence suggests that such oscillation may reflect distinct phases of working memory processing. The present study investigated alpha band (8-13Hz) activity during the maintenance stage of working memory using a modified Sternberg working memory task. Our results reveal that alpha power was concentrated primarily in the occipital cortex and was decreased during the early stage of maintenance (0-600ms), and subsequently increased during the later stage of maintenance (1000-1600ms). We suggest that reduced alpha power may be involved in focused attention during the working memory maintenance, whereas increased alpha power may reflect suppression of visual stimuli to facilitate internal processing related to the task. This interpretation is generally consistent with recent reports suggesting that variations in alpha power are associated with the representation and processing of information in the discrete time intervals during the working memory maintenance | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Alpha band | |
| 650 | 4 | |a Maintenance | |
| 650 | 4 | |a Neural oscillation | |
| 650 | 4 | |a Time course | |
| 650 | 4 | |a Working memory | |
| 700 | 1 | |a Feng, Zhengquan |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Yuanyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Bian, Chen |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Min |e verfasserin |4 aut | |
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