Lesions of prefrontal cortex reduce attentional modulation of neuronal responses and synchrony in V4.
Lesions of prefrontal cortex reduce attentional modulation of neuronal responses and synchrony in V4.
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DOI:
10.1038/nn.3742
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发表时间:
2014-07
影响因子:
25
通讯作者:
Desimone, Robert
中科院分区:
文献类型:
--
作者:
Gregoriou, Georgia G.;Rossi, Andrew F.;Ungerleider, Leslie G.;Desimone, Robert
It is widely held that the frontal eye field (FEF) in prefrontal cortex (PFC) modulates processing in visual cortex with attention, although the evidence for a necessary role is equivocal. To help identify critical sources of attentional feedback to area V4, we surgically removed the entire lateral PFC, including the FEF, in one hemisphere and transected the corpus callosum and anterior commisure in two macaques. This deprived V4 of PFC input in one hemisphere while keeping the other hemisphere intact. In the absence of PFC, attentional effects on neuronal responses and synchrony in V4 were significantly reduced and the remaining effects of attention were delayed in time indicating a critical role of PFC. Conversely, distracters captured attention and influenced V4 responses. However, because the effects of attention in V4 were not eliminated by PFC lesions, other sources of top-down attentional control signals to visual cortex must exist outside of PFC.
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DOI:
10.1126/science.1153276
发表时间:
2008-07-18
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Ekstrom LB;Roelfsema PR;Arsenault JT;Bonmassar G;Vanduffel W
通讯作者:
Vanduffel W
DOI:
10.1126/science.1171402
发表时间:
2009-05-29
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Gregoriou GG;Gotts SJ;Zhou H;Desimone R
通讯作者:
Desimone R
影响因子:
3.4
作者:
DUNCAN, J
通讯作者:
DUNCAN, J
影响因子:
5.3
作者:
Ninomiya, Taihei;Sawamura, Hiromasa;Takada, Masahiko
通讯作者:
Takada, Masahiko
影响因子:
64.8
作者:
Noudoost, Behrad;Moore, Tirin
通讯作者:
Moore, Tirin