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Sensing and processing whisker deflections in rodents
PeerJ ( IF 2.7 ) Pub Date : 2021-02-22 , DOI: 10.7717/peerj.10730
Thomas F. Burns 1 , Ramesh Rajan 1
Affiliation  

The classical view of sensory information mainly flowing into barrel cortex at layer IV, moving up for complex feature processing and lateral interactions in layers II and III, then down to layers V and VI for output and corticothalamic feedback is becoming increasingly undermined by new evidence. We review the neurophysiology of sensing and processing whisker deflections, emphasizing the general processing and organisational principles present along the entire sensory pathway—from the site of physical deflection at the whiskers to the encoding of deflections in the barrel cortex. Many of these principles support the classical view. However, we also highlight the growing number of exceptions to these general principles, which complexify the system and which investigators should be mindful of when interpreting their results. We identify gaps in the literature for experimentalists and theorists to investigate, not just to better understand whisker sensation but also to better understand sensory and cortical processing.

中文翻译:

感知和处理啮齿动物的晶须挠度

感觉信息的经典观点主要在第IV层流入桶状皮质,在第II层和第III层中向上移动以进行复杂的特征处理和横向交互,然后在第V层和第VI层中进行输出和皮层丘脑反馈越来越受到新证据的破坏。我们回顾了感知和加工晶须偏斜的神经生理学,强调了整个感官路径中存在的一般加工和组织原理-从晶须的物理偏斜部位到桶状皮质的偏斜编码。这些原则中有许多都支持经典观点。但是,我们还强调了这些一般性原则的例外情况越来越多,这些例外情况使系统变得复杂,研究人员在解释其结果时应注意这些例外情况。
更新日期:2021-02-22
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