Duhamel J R, Colby C L, Goldberg M E
Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, Bethesda, MD 20892.
Science. 1992 Jan 3;255(5040):90-2. doi: 10.1126/science.1553535.
Every eye movement produces a shift in the visual image on the retina. The receptive field, or retinal response area, of an individual visual neuron moves with the eyes so that after an eye movement it covers a new portion of visual space. For some parietal neurons, the location of the receptive field is shown to shift transiently before an eye movement. In addition, nearly all parietal neurons respond when an eye movement brings the site of a previously flashed stimulus into the receptive field. Parietal cortex both anticipates the retinal consequences of eye movements and updates the retinal coordinates of remembered stimuli to generate a continuously accurate representation of visual space.
每次眼球运动都会使视网膜上的视觉图像发生移位。单个视觉神经元的感受野，即视网膜反应区域，会随着眼睛移动，因此在眼球运动后，它会覆盖视觉空间的一个新部分。对于一些顶叶神经元，在眼球运动之前，感受野的位置会短暂地发生移位。此外，当眼球运动将先前闪现刺激的位置带入感受野时，几乎所有的顶叶神经元都会做出反应。顶叶皮层既能预测眼球运动对视网膜的影响，又能更新记忆刺激的视网膜坐标，以生成视觉空间的连续精确表征。
