Feedback from area 21a influences orientation but not direction maps in the primary visual cortex of the cat
Feedback from area 21a influences orientation but not direction maps in the primary visual cortex of the cat
复制标题
来自 21a 区域的反馈影响方向，但不影响猫初级视觉皮层的方向图
DOI：
10.1016/j.neulet.2011.09.019
复制
发表时间：
2011-10
影响因子：
2.5
通讯作者：
Yu, Hongbo
中科院分区：
文献类型：
--
作者：
Tong, Lei;Zhu, Bin;Li, Zhong;Shou, Ti;e;Yu, Hongbo
在猴子的视觉皮层中，有两种信息处理流：背侧运动通道和腹侧形式/颜色通道。同样，在猫的视觉皮层中也发现了两个相应的信息流，PMLS和21a区是不同运动和形式信息处理的门户。结果表明，PMLS的反馈只调节运动方向而不调节方向响应，而21a区的反馈则调节空间频率依赖性和神经元斜向效应等相关特征。在这里，我们假设来自高皮层区域的反馈信号以运动信息通路的形式单独调节视觉系统低皮层区域神经元的相应特性。为了验证上述假设，利用本征信号光学成像技术，研究了高21a区反馈对猫17区定向图和方向图的影响。结果表明，来自21a区的反馈对方向的振幅和偏好没有影响，但对17区的方向响应有调制作用，支持上述假设。
In the monkey's visual cortex, there are two well-documented information processing streams: the dorsal motion and ventral form/color pathways. Similarly, two corresponding information streams were also found in the cat's visual cortices, and PMLS and area 21a are the gateways for distinct motion and form information processing. It has been shown that the feedback from PMLS solely modulates motion direction, but not orientation response, while the feedback from area 21a modulates form related features, such as spatial frequency dependency and neuronal oblique effect. Here, we postulate that feedback signals from higher cortical areas in the form or the motion information pathway may solely modulate the corresponding properties in neurons in the lower areas of the visual system. To examine the above hypothesis, the impact of feedback from higher area 21a on both orientation and direction maps was investigated in area 17 of the cat using intrinsic signal optical imaging. The results showed that the feedback from area 21a did not affect the amplitude and preference of direction, but did modulate orientation response in area 17, supporting the above hypothesis.
登录
查看更多内容
DOI：
10.1101/sqb.1990.055.01.064
发表时间：
1990
期刊：
Cold Spring Harbor symposia on quantitative biology
影响因子：
--
作者：
D. C. Essen;D. Felleman;E. DeYoe;J. Olavarria;J. Knierim
通讯作者：
D. C. Essen;D. Felleman;E. DeYoe;J. Olavarria;J. Knierim
影响因子：
2.5
作者：
W. Shen;Zhiyin Liang;T. Shou
通讯作者：
W. Shen;Zhiyin Liang;T. Shou
影响因子：
64.8
作者：
Hupé, JM;James, AC;Bullier, J
通讯作者：
Bullier, J
影响因子：
3.7
作者：
Chun Wang;W. Waleszczyk;W. Burke;B. Dreher
通讯作者：
Chun Wang;W. Waleszczyk;W. Burke;B. Dreher
DOI：
10.1073/pnas.95.5.2621
发表时间：
1998-03-03
影响因子：
11.1
作者：
Coppola, DM;White, LE;Purves, D
通讯作者：
Purves, D