The feature-specific propagation of orientation and direction adaptation from areas 17 to 21a in cats.
The feature-specific propagation of orientation and direction adaptation from areas 17 to 21a in cats.
复制标题
猫的定向和方向适应从区域 17 到 21a 的特定特征传播
DOI：
10.1038/s41598-017-00419-x
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发表时间：
2017-03-24
影响因子：
4.6
通讯作者：
Yu H
中科院分区：
文献类型：
--
作者：
Li Z;Meng J;Li H;Jin A;Tang Q;Zhu J;Yu H
适应在视觉信息处理中起着关键作用，对不同视觉区域的适应性进行调查将有助于了解如何在视觉流中动态处理信息。最近的研究发现，早期视觉系统（从LGN到V1）和背面（从V1到MT）的适应效应增强了。但是，尚不清楚适应效果如何沿着视觉系统中的形式/方向流传播。在这项研究中，我们同时在17和21a的猫区域比较了飘动的光栅和固定的闪光光栅以及移动随机点，从而比较了方向和方向的适应性。通过单个单元和固有信号光学成像记录，由充值和偏见的适应方案引起，与区域17相比，区域21a的响应下降和优选方向转移的方向适应效应更大。但是，对于方向适应，未观察到这两个区域之间的差异。这些结果表明，适应效应沿视觉流的特定特异性传播。
Adaptation plays a key role in visual information processing, and investigations on the adaptation across different visual regions will be helpful to understand how information is processed dynamically along the visual streams. Recent studies have found the enhanced adaptation effects in the early visual system (from LGN to V1) and the dorsal stream (from V1 to MT). However, it remains unclear how adaptation effect propagates along the form/orientation stream in the visual system. In this study, we compared the orientation and direction adaptation evoked by drifting gratings and stationary flashing gratings, as well as moving random dots, in areas 17 and 21a simultaneously of cats. Recorded by single-unit and intrinsic signal optical imaging, induced by both top-up and biased adaptation protocols, the orientation adaptation effect was greater in response decline and preferred orientation shifts in area 21a compared to area 17. However, for the direction adaptation, no difference was observed between these two areas. These results suggest the feature-specific propagation of the adaptation effect along the visual stream.