Dobkins K R, Albright T D
Vision Center Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA.
Vis Neurosci. 1995 Mar-Apr;12(2):321-32. doi: 10.1017/s0952523800008002.
We have previously reported that the responses of individual neurons in macaque visual area MT elicited by movement of contrast-reversing heterochromatic red/green borders are largest when the two hues are "balanced" or isoluminant (Dobkins & Albright, 1994). This "neural" isoluminant point was found to vary somewhat across the sample of neurons. Here, we compare the average neural isoluminant point in area MT to a behavioral measure of isoluminance, obtained using a modification of an oculomotor procedure developed by Chaudhuri and Albright (1992). These behavioral estimates of isoluminance closely parallel the neuronal data obtained from area MT. In accordance with previous evidence (e.g. Lee et al., 1988; Kaiser et al., 1990; Valberg et al., 1992), this correlation suggests that activity within the dorsal/magnocellular stream underlies behavioral expression of chromatic isoluminance.
我们之前曾报道，当两种色调“平衡”或等亮度时，猕猴视觉区域MT中由对比反转的异色红/绿边界运动所引发的单个神经元的反应最大（多布金斯和奥尔布赖特，1994年）。发现这个“神经”等亮度点在神经元样本中会有所变化。在这里，我们将MT区域的平均神经等亮度点与通过对乔杜里和奥尔布赖特（1992年）开发的动眼程序进行修改而获得的等亮度行为测量值进行比较。这些等亮度的行为估计值与从MT区域获得的神经元数据密切平行。根据先前的证据（例如李等人，1988年；凯泽等人，1990年；瓦尔贝格等人，1992年），这种相关性表明背侧/大细胞流内的活动是色觉等亮度行为表达的基础。
