首页> 外文期刊>Neuron >Monkey area MT latencies to speed changes depend on attention and correlate with behavioral reaction times
【24h】

Monkey area MT latencies to speed changes depend on attention and correlate with behavioral reaction times

机译:猴子区域MT速度变化的等待时间取决于注意力,并与行为反应时间相关

获取原文
获取原文并翻译 | 示例
           

摘要

Selective visual attention is known to be associated with characteristic modulations of neuronal activity in early visual cortex, but there is only rare evidence showing that these neuronal modulations are directly related to attention-dependent behavioral improvements. Here, we describe a strong, transient increase in the response of neurons in the mediotemporal (MT) area to behaviorally relevant speed changes that is not only modulated by attention but also highly correlated with the animal's performance. In trials with fast reaction time (RT), this transient component occurs with short latency, whereas latency increases monotonically with slower RT. Importantly, RTs are related not to the firing rate modulation during sustained attentive tracking of the target prior to the speed change but to the variability of the neuronal response. Our findings suggest a direct link between attention-dependent response modulations in early visual cortex and improved behavioral performance.
机译:已知选择性视觉注意力与早期视觉皮层中神经元活动的特征性调节有关,但是仅有极少数的证据表明这些神经元调节与注意力依赖行为的改善直接相关。在这里,我们描述了中颞(MT)区域中神经元对行为相关的速度变化的强烈而短暂的响应增加,不仅受到注意力的调节,而且还与动物的行为高度相关。在具有快速反应时间(RT)的试验中,此瞬态成分发生时的等待时间较短,而等待时间则随着RT的降低而单调增加。重要的是,RT与速度变化之前对目标的持续专心跟踪过程中的发射速率调制无关,而与神经元反应的可变性有关。我们的研究结果表明早期视觉皮层中的注意力依赖性反应调节与改善的行为表现之间存在直接联系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号