Lack of selectivity for simple shapes defined by motion and luminance in STPa of the behaving macaque.
Lack of selectivity for simple shapes defined by motion and luminance in STPa of the behaving macaque.
复制标题
对于由行为猕猴的 STPa 中的运动和亮度定义的简单形状缺乏选择性。
DOI：
10.1097/00001756-199806220-00028
复制
发表时间：
1998
期刊：
影响因子：
1.7
通讯作者：
Siegel,RM
中科院分区：
文献类型：
--
作者：
Anderson,KC;Siegel,RM
前颞上多感觉区（STPa）被假设为来自背侧和腹侧视觉通路的信号的整合位点。为了确定 STPa 中的神经元是否对简单的二维几何形状具有选择性，以及该区域是否可能整合不同的视觉线索，用运动和亮度定义的形状对细胞进行了测试。许多神经元在至少一种条件下被形状刺激激活；然而，很少有人在任何一种条件下都表现出对特定形状的选择性。只有一个神经元对两种线索定义的形状有选择性地做出反应。因此，对简单形状的选择性并不是 STPa 神经元的普遍特性，并且亮度和运动信号的整合似乎不会发生在 STPa 的单个神经元水平上。
THE anterior superior temporal polysensory area (STPa) has been hypothesized to be an integration site for signals coming from the dorsal and ventral visual pathways. To determine whether neurons in STPa were selective for simple two-dimensional geometrical shapes and whether this area might integrate different visual cues, cells were tested with motion-and luminance-defined shapes. Many neurons were activated by the shape stimuli under at least one condition; however, very few showed selectivity for a particular shape under either condition. Only one neuron responded selectively to shapes defined by both cues. Thus selectivity for simple shapes is not a prevalent property of STPa neurons and the integration of luminance and motion signals does not appear to occur at the single neuron level in STPa.