Roux, F. and Uhlhaas, P. J. (2014) Working memory and neural oscillations: alpha–gamma versus theta–gamma codes for distinct WM information? Trends in Cognitive Sciences, 18(1), pp. 16-25. (doi: 10.1016/j.tics.2013.10.010)
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Publisher's URL: http://dx.doi.org/10.1016/j.tics.2013.10.010
Abstract
Neural oscillations at different frequencies have recently been related to a wide range of basic and higher cognitive processes. One possible role of oscillatory activity is to assure the maintenance of information in working memory (WM). Here we review the possibility that rhythmic activity at theta, alpha, and gamma frequencies serve distinct functional roles during WM maintenance. Specifically, we propose that gamma-band oscillations are generically involved in the maintenance of WM information. By contrast, alpha-band activity reflects the active inhibition of task-irrelevant information, whereas theta-band oscillations underlie the organization of sequentially ordered WM items. Finally, we address the role of cross-frequency coupling (CFC) in enabling alpha–gamma and theta–gamma codes for distinct WM information.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Uhlhaas, Professor Peter |
Authors: | Roux, F., and Uhlhaas, P. J. |
College/School: | College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
Journal Name: | Trends in Cognitive Sciences |
Publisher: | Elsevier (Cell Press) |
ISSN: | 1364-6613 |
ISSN (Online): | 1879-307X |
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