Miller E K, Gochin P M, Gross C G
Department of Psychology, Princeton University, NJ 08544.
Brain Res. 1993 Jul 9;616(1-2):25-9. doi: 10.1016/0006-8993(93)90187-r.
The responses of neurons, in inferior temporal cortex of the awake macaque, to single stimuli and pairs of stimuli were examined. The responses of most neurons were weaker to pairs of stimuli than to the best single stimulus of that pair presented alone. This 'suppression by a second stimulus' did not appear to be stimulus-selective and the suppression was greater when the second stimulus appeared in receptive field locations that exhibited weaker responses. This phenomenon suggests competitive interactions between IT neurons that may be involved in visual attention or learning or both.
研究了清醒猕猴颞下皮质中神经元对单个刺激和成对刺激的反应。大多数神经元对成对刺激的反应比对单独呈现的该对中最佳单个刺激的反应更弱。这种“第二刺激抑制”似乎不是刺激选择性的，当第二刺激出现在反应较弱的感受野位置时，抑制作用更大。这种现象表明颞下神经元之间可能存在竞争性相互作用，这可能与视觉注意力、学习或两者都有关。
