Journal
NEUROREPORT
Volume 27, Issue 11, Pages 796-801Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/WNR.0000000000000609
Keywords
aging; audiovisual integration; theta oscillatory pattern; wavelet analysis
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Funding
- National Natural Science Foundation of China [61305142, 61473043, 81271568]
- Beijing Institute of Technology Science and Innovation Program [GZ2013115101]
- Grants-in-Aid for Scientific Research [25303013, 25249026] Funding Source: KAKEN
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This study used electroencephalogram measurements to investigate the effects of aging on oscillatory theta modulation during an audiovisual discrimination task. By a wavelet-based time-frequency analysis, age-related theta oscillation response differences were observed within a relatively restricted time range (0-500 ms) over frontal-central regions. Older adults showed stronger theta spectral power during visual and audiovisual stimuli in the left frontal regions; however, young adults showed stronger theta spectral power during auditory and audiovisual stimuli in the central regions. These findings suggest that multisensory oscillatory theta responses differ according to age, which further proves that the left frontal regions play an important role in audiovisual integration. Copyright (C) 2016 Wolters Kluwer Health, Inc. All rights reserved.
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