The Slip Hypothesis: Tactile Perception and its Neuronal Bases

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• 作者：Cornelius Schwarz¹ ; ² ; ^{cornelius.schwarz@uni-tuebingen.de" class="auth_mail" title="E-mail the corresponding author}
• 关键词：epicritic tactile perception ; vibrissae ; fingertip ; papillary ridges ; friction ; stick-slip movements ; slip hypothesis
• 刊名：Trends in Neurosciences
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：39
• 期：7
• 页码：449-462
• 全文大小：3089 K

文摘

The slip hypothesis of epicritic tactile perception interprets actively moving sensor and touched objects as a frictional system, known to lead to jerky relative movements called ‘slips’. These slips depend on object geometry, forces, material properties, and environmental factors, and, thus, have the power to incorporate coding of the perceptual target, as well as perceptual strategies (sensor movement). Tactile information as transferred by slips will be encoded discontinuously in space and time, because slips sometimes engage only parts of the touching surfaces and appear as discrete and rare events in time. This discontinuity may have forced tactile systems of vibrissae and fingertips to evolve special ways to convert touch signals to a tactile percept.