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Turning Touch into Perception.
Neuron ( IF 16.2 ) Pub Date : 2020-01-08 , DOI: 10.1016/j.neuron.2019.11.033
Ranulfo Romo 1 , Román Rossi-Pool 2
Affiliation  

Many brain areas modulate their activity during vibrotactile tasks. The activity from these areas may code the stimulus parameters, stimulus perception, or perceptual reports. Here, we discuss findings obtained in behaving monkeys aimed to understand these processes. In brief, neurons from the somatosensory thalamus and primary somatosensory cortex (S1) only code the stimulus parameters during the stimulation periods. In contrast, areas downstream of S1 code the stimulus parameters during not only the task components but also perception. Surprisingly, the midbrain dopamine system is an actor not considered before in perception. We discuss the evidence that it codes the subjective magnitude of a sensory percept. The findings reviewed here may help us to understand where and how sensation transforms into perception in the brain.

中文翻译:

将触摸变成感知。

在动触觉任务期间,许多大脑区域会调节其活动。这些区域的活动可以编码刺激参数,刺激感知或感知报告。在这里,我们讨论了在行为猴子中获得的发现,旨在了解这些过程。简而言之,来自体感丘脑和初级体感皮层(S1)的神经元仅在刺激期间编码刺激参数。相反,S1下游的区域不仅在任务组成部分而且在感知过程中对刺激参数进行编码。出人意料的是,中脑多巴胺系统是以前没有在感知中考虑的参与者。我们讨论的证据表明,它编码了感官知觉的主观幅度。此处回顾的发现可能有助于我们理解感觉在哪里以及如何在大脑中转化为感知。
更新日期:2020-01-08
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