期刊
NATURE NEUROSCIENCE
卷 3, 期 3, 页码 284-291出版社
NATURE AMERICA INC
DOI: 10.1038/72999
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资金
- NIMH NIH HHS [MH57138, MH55714] Funding Source: Medline
- NATIONAL INSTITUTE OF MENTAL HEALTH [R01MH057138, R56MH055714, R01MH055714] Funding Source: NIH RePORTER
Selective visual attention involves dynamic interplay between attentional control systems and sensory brain structures. We used event-related functional magnetic resonance imaging (fMRI) during a cued spatial-attention task to dissociate brain activity related to attentional control from that related to selective processing of target stimuli. Distinct networks were engaged by attention-directing cues versus subsequent targets. Superior frontal, inferior parietal and superior temporal cortex were selectively activated by cues, indicating that these structures are part of a network for voluntary attentional control. This control biased activity in multiple visual cortical areas, resulting in selective sensory processing of relevant visual targets.
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