Hamker Fred H
Allgemeine Psychologie, Westf. Wilhelms-Universität, Münster, Germany.
J Vis. 2003 Dec 12;3(11):808-16. doi: 10.1167/3.11.14.
Cortical organization of vision appears to be divided into perception and action. Models of vision have generally assumed that eye movements serve to select a scene for perception, so action and perception are sequential processes. We suggest a less distinct separation. According to our model, occulomotor areas responsible for planning an eye movement, such as the frontal eye field, influence perception prior to the eye movement. The activity reflecting the planning of an eye movement reenters the ventral pathway and sensitizes all cells within the movement field so the planned action determines perception. We demonstrate the performance of the computational model in a visual search task that demands an eye movement toward a target.
视觉的皮层组织似乎分为感知和行动两部分。视觉模型通常认为，眼球运动用于选择一个场景进行感知，因此行动和感知是相继的过程。我们提出一种区分不那么明显的观点。根据我们的模型，负责规划眼球运动的动眼区域，如额叶眼区，在眼球运动之前就会影响感知。反映眼球运动规划的活动重新进入腹侧通路，并使运动视野内的所有细胞敏感化，从而使计划好的行动决定感知。我们在一项需要朝着目标进行眼球运动的视觉搜索任务中展示了该计算模型的性能。
