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首页> 外文期刊>Neuron >Effects of attention on the reliability of individual neurons in monkey visual cortex.
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Effects of attention on the reliability of individual neurons in monkey visual cortex.

机译：注意对猴子视觉皮层中单个神经元可靠性的影响。

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摘要

To determine the physiological mechanisms underlying the enhancement of performance by attention, we examined how attention affects the ability of isolated neurons to discriminate orientation by investigating the reliability of responses with and without attention. Recording from 262 neurons in cortical area V4 while two rhesus macaques did a delayed match-to-sample task with oriented stimuli, we found that attention did not produce detectable changes in the variability of neuronal responses but did improve the orientation discriminability of the neurons. We also found that attention did not change the relationship between burst rate and response rate. Our results are consistent with the idea that attention selects groups of neurons for a multiplicative enhancement in response strength.
机译：为了确定引起注意力增强的潜在生理机制，我们通过研究有无注意力反应的可靠性，研究了注意力如何影响孤立的神经元区分方向的能力。记录来自皮质V4区的262个神经元，而两只恒河猴则以定向刺激完成了延迟的匹配样本任务，我们发现注意力并未在神经元反应的变异性上产生可检测的变化，但确实改善了神经元的定向判别能力。我们还发现注意力并没有改变突发率和响应率之间的关系。我们的结果与以下观点一致：注意力选择神经元组以增强响应强度。

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