Visual sensitivity and cortical response to the temporal envelope of amplitude-modulated flicker.
Visual sensitivity and cortical response to the temporal envelope of amplitude-modulated flicker.
复制标题
对调幅闪烁的时间包络的视觉敏感性和皮质响应。
DOI：
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发表时间：
2009
影响因子：
1.9
通讯作者：
T. Yano
中科院分区：
文献类型：
--
作者：
Y. Okamoto;S. Nakagawa;K. Fujii;T. Yano
研究闪烁光的时间包络对于理解视觉系统中的非线性时间处理具有重要意义。闪烁光的频率分量对包络感知的影响仍然不清楚，很少有研究调查了包络的皮层活动。我们研究了与调幅（AM）闪烁光相关的检测阈值、亮度和脑磁图反应。结果表明，在AM闪烁光的包络周期处，高频载波（40 Hz）对闪烁的敏感性低于低频载波（10、20或30 Hz）。此外，初级视觉皮层在与AM闪烁光的包络周期相对应的频率下响应，并且皮层响应的强度反映了包络周期下闪烁的亮度。
To investigate the perception of a temporal envelope of flickering light is important for understanding nonlinear temporal processing in the visual system. The influence of the frequency components of a flickering light on the perception of the envelope remains unclear, with few studies having investigated the cortical activities for the envelope. We investigated the detection thresholds, brightness, and magnetoencephalographic responses related to amplitude-modulated (AM) flickering lights. The results showed that the sensitivity to flicker at the envelope periodicity of the AM flickering light was lower for a high-frequency carrier (40 Hz) than for a lower-frequency one (10, 20, or 30 Hz). Also, the primary visual cortex responded at the frequency corresponding to the envelope periodicity of the AM flickering light, and the strength of the cortical response reflected the brightness of the flicker at the envelope periodicity.
DOI：
10.1073/pnas.89.12.5675
发表时间：
1992-06-15
影响因子：
11.1
作者：
KWONG, KK;BELLIVEAU, JW;ROSEN, BR
通讯作者：
ROSEN, BR
影响因子：
2.5
作者：
FOX, PT;RAICHLE, ME
通讯作者：
RAICHLE, ME
视网膜在低时间频率下的响应。
DOI：
10.1364/josaa.13.000667
发表时间：
1996
期刊：
Journal of the Optical Society of America. A, Optics, image science, and vision
影响因子：
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作者：
Burns,SA;Elsner,AE
通讯作者：
Elsner,AE