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首页> 外文期刊>The European Journal of Neuroscience >Neural correlates of multisensory reliability and perceptual weights emerge at early latencies during audio‐visual integration
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Neural correlates of multisensory reliability and perceptual weights emerge at early latencies during audio‐visual integration

机译：在视听集成期间的早期延迟出现了多思句可靠性和感知权重的神经相关性

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Abstract To make accurate perceptual estimates, observers must take the reliability of sensory information into account. Despite many behavioural studies showing that subjects weight individual sensory cues in proportion to their reliabilities, it is still unclear when during a trial neuronal responses are modulated by the reliability of sensory information or when they reflect the perceptual weights attributed to each sensory input. We investigated these questions using a combination of psychophysics,EEG based neuroimaging and singletrial decoding. Our results show that the weighted integration of sensory information in the brain is a dynamic process; effects of sensory reliability on taskrelevantEEG components were evident 84 s after stimulus onset, while neural correlates of perceptual weights emerged 120 s after stimulus onset. These neural processes had different underlying sources, arising from sensory and parietal regions, respectively. Together these results reveal the temporal dynamics of perceptual and neural audiovisual integration and support the notion of temporally early and functionally specific multisensory processes in the brain.
机译：摘要为了准确的感知估计，观察者必须考虑感官信息的可靠性。尽管具有许多行为研究表明，对于其可靠性成比例的受试者重量单独的感官提示，但是当在试验期间，仍然尚不清楚通过感官信息的可靠性或者将感知重量反射归因于每个感官输入的感知重量来调节。我们使用心理物理学，基于脑电图的神经影像和单身解码来调查这些问题。我们的研究结果表明，大脑中感官信息的加权集成是一种动态过程;在刺激发作后，在刺激发作后，Systory可靠性对Taskrelevanteeg组分的影响，而刺激发作后感知重量的神经相关性120s。这些神经过程分别具有不同的潜在来源，分别由感官和榫廓区域产生。这些结果揭示了感知和神经听音像集成的时间动态，并支持大脑中暂时早期和功能特异的多症流程的概念。

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