Passive human touch cannot recognize the shape of a pattern imprinted on the fingertip
Summary: While tactile spatial pattern recognition has been suggested to be qualitatively similar to visual recognition, our study challenges this notion, particularly under passive touch. Previous electrophysiological and behavioral research suggested that the tactile system can process complex spa...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225005929 |
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| author | Scinob Kuroki Takumi Hamazaki Hiroyuki Kajimoto Shin’ya Nishida |
| author_facet | Scinob Kuroki Takumi Hamazaki Hiroyuki Kajimoto Shin’ya Nishida |
| author_sort | Scinob Kuroki |
| collection | DOAJ |
| description | Summary: While tactile spatial pattern recognition has been suggested to be qualitatively similar to visual recognition, our study challenges this notion, particularly under passive touch. Previous electrophysiological and behavioral research suggested that the tactile system can process complex spatial patterns in the same way as the visual system and can be modeled as a low-pass version of visual spatial perception. However, we found that when using energy-matched simple patterns, participants were highly dependent on local skin deformation and largely ineffective at distinguishing basic shape features, such as a closed triangle vs. an open arrow, or to discern the similarity of rotated versions of the same shape, regardless of whether they were presented as vibrotactile patterns or braille patterns. This study provides compelling evidence that tactile representation of spatial patterns differs not only in resolution but also in how the brain processes shape features compared to visual representation in standard passive viewing. |
| format | Article |
| id | doaj-art-ae53ca717a31480cbae4c984a9346a94 |
| institution | OA Journals |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-ae53ca717a31480cbae4c984a9346a942025-08-20T02:13:12ZengElsevieriScience2589-00422025-05-0128511233110.1016/j.isci.2025.112331Passive human touch cannot recognize the shape of a pattern imprinted on the fingertipScinob Kuroki0Takumi Hamazaki1Hiroyuki Kajimoto2Shin’ya Nishida3Communication Science Laboratories, NTT, Atsugi, Kanagawa 243-0198, Japan; Corresponding authorDepartment of Informatics, University of Electro-Communications, Chofu, Tokyo 182-8585, JapanDepartment of Informatics, University of Electro-Communications, Chofu, Tokyo 182-8585, JapanCommunication Science Laboratories, NTT, Atsugi, Kanagawa 243-0198, Japan; Graduate School of Informatics, Kyoto University, Kyoto 606-8501, JapanSummary: While tactile spatial pattern recognition has been suggested to be qualitatively similar to visual recognition, our study challenges this notion, particularly under passive touch. Previous electrophysiological and behavioral research suggested that the tactile system can process complex spatial patterns in the same way as the visual system and can be modeled as a low-pass version of visual spatial perception. However, we found that when using energy-matched simple patterns, participants were highly dependent on local skin deformation and largely ineffective at distinguishing basic shape features, such as a closed triangle vs. an open arrow, or to discern the similarity of rotated versions of the same shape, regardless of whether they were presented as vibrotactile patterns or braille patterns. This study provides compelling evidence that tactile representation of spatial patterns differs not only in resolution but also in how the brain processes shape features compared to visual representation in standard passive viewing.http://www.sciencedirect.com/science/article/pii/S2589004225005929Social sciences |
| spellingShingle | Scinob Kuroki Takumi Hamazaki Hiroyuki Kajimoto Shin’ya Nishida Passive human touch cannot recognize the shape of a pattern imprinted on the fingertip iScience Social sciences |
| title | Passive human touch cannot recognize the shape of a pattern imprinted on the fingertip |
| title_full | Passive human touch cannot recognize the shape of a pattern imprinted on the fingertip |
| title_fullStr | Passive human touch cannot recognize the shape of a pattern imprinted on the fingertip |
| title_full_unstemmed | Passive human touch cannot recognize the shape of a pattern imprinted on the fingertip |
| title_short | Passive human touch cannot recognize the shape of a pattern imprinted on the fingertip |
| title_sort | passive human touch cannot recognize the shape of a pattern imprinted on the fingertip |
| topic | Social sciences |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225005929 |
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