{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T15:59:22Z","timestamp":1778083162769,"version":"3.51.4"},"reference-count":36,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T00:00:00Z","timestamp":1711584000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000923","name":"Australian Research Council","doi-asserted-by":"publisher","award":["DP230100048"],"award-info":[{"award-number":["DP230100048"]}],"id":[{"id":"10.13039\/501100000923","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000923","name":"Australian Research Council","doi-asserted-by":"publisher","award":["DP200100630"],"award-info":[{"award-number":["DP200100630"]}],"id":[{"id":"10.13039\/501100000923","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["physoc.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Journal of Physiology"],"published-print":{"date-parts":[[2024,5]]},"abstract":"<jats:sec><jats:title>Abstract<\/jats:title><jats:p>When manipulating objects, humans begin adjusting their grip force to friction within 100\u00a0ms of contact. During motor adaptation, subjects become aware of the slipperiness of touched surfaces. Previously, we have demonstrated that humans cannot perceive frictional differences when surfaces are brought in contact with an immobilised finger, but can do so when there is submillimeter lateral displacement or subjects actively make the contact movement. Similarly, in, we investigated how humans perceive friction in the absence of intentional exploratory sliding or rubbing movements, to mimic object manipulation interactions. We used a two\u2010alternative forced\u2010choice paradigm in which subjects had to reach and touch one surface followed by another, and then indicate which felt more slippery. Subjects correctly identified the more slippery surface in 87\u00a0\u00b1\u00a08% of cases (mean\u00a0\u00b1\u00a0SD; <jats:italic>n<\/jats:italic>\u00a0=\u00a012). Biomechanical analysis of finger pad skin displacement patterns revealed the presence of tiny (&lt;1\u00a0mm) localised slips, known to be sufficient to perceive frictional differences. We tested whether these skin movements arise as a result of natural hand reaching kinematics. The task was repeated with the introduction of a hand support, eliminating the hand reaching movement and minimising fingertip movement deviations from a straight path. As a result, our subjects\u2019 performance significantly declined (66\u00a0\u00b1\u00a012% correct, mean\u00a0\u00b1\u00a0SD; <jats:italic>n<\/jats:italic>\u00a0=\u00a012), suggesting that unrestricted reaching movement kinematics and factors such as physiological tremor, play a crucial role in enhancing or enabling friction perception upon initial contact.\n<jats:boxed-text content-type=\"graphic\" position=\"anchor\"><jats:graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mimetype=\"image\/png\" position=\"anchor\" specific-use=\"enlarged-web-image\" xlink:href=\"graphic\/tjp16014-gra-0001-m.png\"><jats:alt-text>image<\/jats:alt-text><\/jats:graphic><\/jats:boxed-text><\/jats:p><\/jats:sec><jats:sec><jats:title>Key points<\/jats:title><jats:p><jats:list list-type=\"bullet\">\n<jats:list-item><jats:p>More slippery objects require a stronger grip to prevent them from slipping out of hands.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>Grip force adjustments to friction driven by tactile sensory signals are largely automatic and do not necessitate cognitive involvement; nevertheless, some associated awareness of grip surface slipperiness under such sensory conditions is present and helps to select a safe and appropriate movement plan.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>When gripping an object, tactile receptors provide frictional information without intentional rubbing or sliding fingers over the surface. However, we have discovered that submillimeter range lateral displacement might be required to enhance or enable friction sensing.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>The present study provides evidence that such small lateral movements causing localised partial slips arise and are an inherent part of natural reaching movement kinematics.<\/jats:p><\/jats:list-item>\n<\/jats:list><\/jats:p><\/jats:sec>","DOI":"10.1113\/jp286027","type":"journal-article","created":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T07:12:12Z","timestamp":1711609932000},"page":"2089-2106","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Role of arm reaching movement kinematics in friction perception at initial contact with smooth surfaces"],"prefix":"10.1113","volume":"602","author":[{"given":"Naqash","family":"Afzal","sequence":"first","affiliation":[{"name":"School of Biomedical Sciences UNSW Sydney  Sydney NSW 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