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Differences in theta coherence between spatial and nonspatial attention using intracranial electroencephalographic signals in humans

Title
Differences in theta coherence between spatial and nonspatial attention using intracranial electroencephalographic signals in humans
Author
김인영
Keywords
attention network; frontoparietal network; intracranial electroencephalography; nonspatial attention; spatial attention
Issue Date
2019-06
Publisher
WILEY
Citation
HUMAN BRAIN MAPPING, v. 40, NO 8, Page. 2336-2346
Abstract
A number of previous studies revealed the importance of the frontoparietal network for attention and preparatory top-down control. Here, we investigated the theta (7-9 Hz) coherence of the right frontoparietal networks to explore the differences in connectivity changes for the right frontoparietal regions during spatial attention (i.e., attention to a specific location rather than a specific feature) and nonspatial attention (i.e., attention to a specific feature rather than a specific location) tasks. The theta coherence in both tasks was primarily maintained at a preparatory state, decreases after stimulus onset, and recovers to the level of the preparatory state after the response time. However, the theta coherence of the frontoparietal network during spatial attention was immediately maintained after cue-onset, whereas for the case of nonspatial attention, it was immediately decreased after cue-onset. In addition, the connectivity of the right frontoparietal network, including the middle frontal gyrus and superior parietal lobe, were significantly higher for spatial attention rather than for nonspatial attention, suggesting that the dorsal parts of right frontoparietal network are more engaged in spatial-specific attention from the preparatory state. These findings also suggest that these two attention systems involve the use of different regional connectivity patterns, not only in the cognitive state, but in the preparatory state as well.
URI
https://onlinelibrary.wiley.com/doi/full/10.1002/hbm.24526http://repository.hanyang.ac.kr/handle/20.500.11754/125323
ISSN
1065-9471; 1097-0193
DOI
10.1002/hbm.24526
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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