Moore T, Fallah M
Department of Psychology, Princeton University, Princeton, NJ 08544-1010, USA.
Proc Natl Acad Sci U S A. 2001 Jan 30;98(3):1273-6. doi: 10.1073/pnas.98.3.1273. Epub 2001 Jan 16.
Several lines of evidence suggest that planning eye movements and directing visuospatial attention share overlapping brain mechanisms. This study tested whether spatial attention can be enhanced by altering oculomotor signals within the brain. Monkeys performed a spatial attention task while neurons within the frontal eye field, an oculomotor area within prefrontal cortex, were electrically stimulated below the level at which eye movements are evoked. We found that we could improve the monkey's performance with microstimulation when, but only when, the object to be attended was positioned in the space represented by the cortical stimulation site.
多项证据表明,规划眼球运动和引导视觉空间注意力共享重叠的脑机制。本研究测试了是否可以通过改变大脑内的动眼神经信号来增强空间注意力。猴子执行一项空间注意力任务,同时对前额叶皮层内的一个动眼神经区域——额叶眼区中的神经元进行电刺激,刺激强度低于诱发眼球运动的水平。我们发现,只有当要注意的物体位于由皮层刺激部位所代表的空间中时,微刺激才能提高猴子的表现。