Fast backprojections from the motion to the primary visual area necessary for visual awareness

被引：575
作者：
Pascual-Leone, A
Walsh, V
机构：
[1] Harvard Univ, Sch Med, Beth Israel Deaconess Med Ctr, Lab Magnet Brain Stimulat, Boston, MA 02115 USA
[2] Univ Oxford, Oxford OX1 3UD, England
来源：
SCIENCE | 2001年 / 292卷 / 5516期
关键词：
D O I：
10.1126/science.1057099
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Much is known about the pathways from photoreceptors to higher visual areas in the brain. However, how we become aware of what we see or of having seen at all is a problem that has eluded neuroscience. Recordings from macaque V1 during deactivation of MT+/V5 and psychophysical studies of perceptual integration suggest that feedback from secondary visual areas to V1 is necessary for visual awareness. We used transcranial magnetic stimulation to probe the timing and function of feedback from human area MT+/V5 to V1 and found its action to be early and critical for awareness of visual motion.
引用
收藏
页码：510 / 512
页数：3
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