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A key example of this adaptability is the enhancement of tactile perception in the absence of visual input. Despite behavioral studies showing visual deprivation can improve tactile discrimination, the underlying neural mechanisms, particularly how tactile neural representations are reorganized during visual deprivation, remain unclear. In this study, we explore how the absence of visual input alters tactile neural encoding in the rat primary somatosensory cortex (S1). Rats were trained on a custom-designed treadmill with distinct tactile textures (rough and smooth), and local field potentials (LFPs) were recorded from S1 under light and dark conditions. Machine learning techniques, specifically a convolutional neural network, were used to decode the high-dimensional LFP signals. We found that the neural representations of tactile stimuli became more distinct in the dark, indicating a reorganization of sensory processing in S1 when visual input was removed. Notably, conventional amplitude-based analyses failed to capture these changes, highlighting the power of deep learning in uncovering subtle neural patterns. These findings offer new insights into how the brain rapidly adapts tactile processing in response to the loss of visual input, with implications for multisensory integration.<\/jats:p>","DOI":"10.7554\/elife.106554","type":"journal-article","created":{"date-parts":[[2025,8,5]],"date-time":"2025-08-05T15:30:18Z","timestamp":1754407818000},"update-policy":"https:\/\/doi.org\/10.7554\/elife.106554","source":"Crossref","is-referenced-by-count":0,"title":["Enhanced tactile coding in rat neocortex under darkness"],"prefix":"10.7554","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8956-8529","authenticated-orcid":true,"given":"Kotaro","family":"Yamashiro","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/057zh3y96","id-type":"ROR","asserted-by":"publisher"}],"name":"Graduate School of Pharmaceutical Sciences, The University of Tokyo","place":["Tokyo, 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