Stimulus Predictability Reduces Responses in Primary Visual Cortex
Stimulus Predictability Reduces Responses in Primary Visual Cortex
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DOI：
10.1523/jneurosci.3730-10.2010
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发表时间：
2010-02-24
影响因子：
5.3
通讯作者：
Muckli, Lars
中科院分区：
文献类型：
--
作者：
Alink, Arjen;Schwiedrzik, Caspar M.;Muckli, Lars
在这项功能磁共振成像研究中，我们测试了刺激的可预测性是否会影响初级视觉皮质(V1)的反应。这项研究的结果表明，当视觉刺激的开始或运动方向可以从周围错觉运动的动力学中预测出来时，它们在V1中引起的反应较小。根据这一发现，我们得出结论，人脑预计即将到来的感觉输入，允许在皮质处理的早期阶段，以较少的神经激活来处理可预测的视觉刺激。
In this functional magnetic resonance imaging study we tested whether the predictability of stimuli affects responses in primary visual cortex (V1). The results of this study indicate that visual stimuli evoke smaller responses in V1 when their onset or motion direction can be predicted from the dynamics of surrounding illusory motion. We conclude from this finding that the human brain anticipates forthcoming sensory input that allows predictable visual stimuli to be processed with less neural activation at early stages of cortical processing.