The many characters of visual alpha oscillations
A central feature of human brain activity is the alpha rhythm: a 7 - 13 Hz oscillation observed most notably over occipitoparietal brain regions during periods of eyes-closed rest. Alpha oscillations covary with changes in visual processing, and have been associated with a broad range of neurocognit...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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Wiley
2017
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| _version_ | 1797092901303353344 |
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| author | Clayton, M Yeung, N Cohen Kadosh, R |
| author_facet | Clayton, M Yeung, N Cohen Kadosh, R |
| author_sort | Clayton, M |
| collection | OXFORD |
| description | A central feature of human brain activity is the alpha rhythm: a 7 - 13 Hz oscillation observed most notably over occipitoparietal brain regions during periods of eyes-closed rest. Alpha oscillations covary with changes in visual processing, and have been associated with a broad range of neurocognitive functions. In this article, we review these associations and suggest that alpha oscillations can be thought to exhibit at least five distinct 'characters': those of the inhibitor, perceiver, predictor, communicator, and stabiliser. In short, while alpha oscillations are strongly associated with reductions in visual attention, they also appear to play important roles in regulating the timing and temporal resolution of perception. Furthermore, alpha oscillations are strongly associated with top-down control, and may facilitate transmission of predictions to visual cortex. This is in addition to promoting communication between frontal and posterior brain regions more generally, as well as maintaining ongoing perceptual states. We discuss why alpha oscillations might associate with such a broad range of cognitive functions, and suggest ways in which these diverse associations can be studied experimentally. |
| first_indexed | 2024-03-07T03:52:38Z |
| format | Journal article |
| id | oxford-uuid:c1cde306-187c-44bb-a9cf-a7089d353a35 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:52:38Z |
| publishDate | 2017 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:c1cde306-187c-44bb-a9cf-a7089d353a352022-03-27T06:04:13ZThe many characters of visual alpha oscillationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c1cde306-187c-44bb-a9cf-a7089d353a35EnglishSymplectic Elements at OxfordWiley2017Clayton, MYeung, NCohen Kadosh, RA central feature of human brain activity is the alpha rhythm: a 7 - 13 Hz oscillation observed most notably over occipitoparietal brain regions during periods of eyes-closed rest. Alpha oscillations covary with changes in visual processing, and have been associated with a broad range of neurocognitive functions. In this article, we review these associations and suggest that alpha oscillations can be thought to exhibit at least five distinct 'characters': those of the inhibitor, perceiver, predictor, communicator, and stabiliser. In short, while alpha oscillations are strongly associated with reductions in visual attention, they also appear to play important roles in regulating the timing and temporal resolution of perception. Furthermore, alpha oscillations are strongly associated with top-down control, and may facilitate transmission of predictions to visual cortex. This is in addition to promoting communication between frontal and posterior brain regions more generally, as well as maintaining ongoing perceptual states. We discuss why alpha oscillations might associate with such a broad range of cognitive functions, and suggest ways in which these diverse associations can be studied experimentally. |
| spellingShingle | Clayton, M Yeung, N Cohen Kadosh, R The many characters of visual alpha oscillations |
| title | The many characters of visual alpha oscillations |
| title_full | The many characters of visual alpha oscillations |
| title_fullStr | The many characters of visual alpha oscillations |
| title_full_unstemmed | The many characters of visual alpha oscillations |
| title_short | The many characters of visual alpha oscillations |
| title_sort | many characters of visual alpha oscillations |
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