INCREASED ATTENTION ENHANCES BOTH BEHAVIORAL AND NEURONAL PERFORMANCE
INCREASED ATTENTION ENHANCES BOTH BEHAVIORAL AND NEURONAL PERFORMANCE
复制标题
DOI：
10.1126/science.3353728
复制
发表时间：
1988-04-15
期刊：
影响因子：
56.9
通讯作者：
MORAN, J
中科院分区：
文献类型：
--
作者：
SPITZER, H;DESIMONE, R;MORAN, J
记录了两只恒河猴(Macaca Mulatta)大脑皮质V4区的单个细胞，进行了两个难度等级的视觉辨别任务训练。行为证据表明，当任务变得更加困难时，猴子的辨别能力会有所提高。相应地，在困难的任务中，神经元对刺激的反应变得更大，更具选择性。一项对照实验表明，一般觉醒的变化不能解释任务难度对神经元反应的影响。结论是，增加对刺激的注意力可以增强处理刺激的神经元的反应性和选择性。
Single cells were recorded from cortical area V4 of two rhesus monkeys (Macaca mulatta) trained on a visual discrimination task with two levels of difficulty. Behavioral evidence indicated that the monkeys'' discriminative abilities improved when the task was made more difficult. Correspondingly, neuronal responses to stimuli became larger and more selective in the difficult task. A control experiment demonstrated that changes in general arousal could not account for the effects of task difficulty on neuronal responses. It is concluded that increasing the amount of attention directed toward a stimulus can enhance the responsiveness and selectivity of the neurons that process it.