A Dynamic Interplay within the Frontoparietal Network Underlies Rhythmic Spatial Attention.
A Dynamic Interplay within the Frontoparietal Network Underlies Rhythmic Spatial Attention.
复制标题
额叶网络中的动态相互作用是有节奏的空间关注的基础。
DOI:
10.1016/j.neuron.2018.07.038
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发表时间:
2018-08-22
期刊:
影响因子:
16.2
通讯作者:
Kastner S
中科院分区:
文献类型:
--
作者:
Fiebelkorn IC;Pinsk MA;Kastner S
Classic studies of spatial attention assumed that its neural and behavioral effects were continuous over time. Recent behavioral studies have instead revealed that spatial attention leads to alternating periods of heightened or diminished perceptual sensitivity. Yet the neural basis of these rhythmic fluctuations has remained largely unknown. We show that a dynamic interplay within the macaque frontoparietal network accounts for the rhythmic properties of spatial attention. Neural oscillations characterize functional interactions between the frontal eye fields (FEF) and the lateral intraparietal area (LIP), with theta phase (3–8 Hz) coordinating two rhythmically alternating states. The first is defined by FEF-dominated beta-band activity, associated with suppressed attentional shifts, and LIP-dominated gamma-band activity, associated with enhanced visual processing and better behavioral performance. The second is defined by LIP-specific alpha-band activity, associated with attenuated visual processing and worse behavioral performance. Our findings reveal how network-level interactions organize environmental sampling into rhythmic cycles. Fiebelkorn et al., use simultaneous recordings in two hubs of the macaque frontoparietal network to demonstrate a neural basis of rhythmic sampling during spatial attention. Theta-organized, alternating attentional states, characterized by different spatiotemporal dynamics, shape environmental sampling.
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影响因子:
16.2
作者:
Bosman CA;Schoffelen JM;Brunet N;Oostenveld R;Bastos AM;Womelsdorf T;Rubehn B;Stieglitz T;De Weerd P;Fries P
通讯作者:
Fries P
DOI:
10.1073/pnas.1011284108
发表时间:
2011-07-05
影响因子:
11.1
作者:
Buffalo, Elizabeth A.;Fries, Pascal;Desimone, Robert
通讯作者:
Desimone, Robert
影响因子:
13.9
作者:
Bisley JW;Goldberg ME
通讯作者:
Goldberg ME
影响因子:
2.5
作者:
BARASH, S;BRACEWELL, RM;ANDERSEN, RA
通讯作者:
ANDERSEN, RA
影响因子:
16.2
作者:
Buschman, Timothy J.;Miller, Earl K.
通讯作者:
Miller, Earl K.