Predictions of bimanual self-touch determine the temporal tuning of somatosensory perception
Summary: We easily distinguish self-touch from the touch of others. This distinction is suggested to arise because the brain predicts the somatosensory consequences of voluntary movements using an efference copy and attenuates the predicted self-touch. However, it remains unclear how these predictio...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004224028700 |
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| author | Noa Cemeljic Xavier Job Konstantina Kilteni |
| author_facet | Noa Cemeljic Xavier Job Konstantina Kilteni |
| author_sort | Noa Cemeljic |
| collection | DOAJ |
| description | Summary: We easily distinguish self-touch from the touch of others. This distinction is suggested to arise because the brain predicts the somatosensory consequences of voluntary movements using an efference copy and attenuates the predicted self-touch. However, it remains unclear how these predictions impact somatosensory perception before or after the self-touch occurs. Here, participants discriminated forces applied to their left index finger at different phases of the right hand’s reaching movement toward the left hand. We observed that forces felt progressively weaker during the reaching, reached their minimum perceived intensity at the time of self-touch, and recovered after the movement ended. We further demonstrated that this gradual attenuation vanished during similar reaching movements that did not produce expectations of self-touch between the two hands. Our results indicate a temporal tuning of somatosensory perception during movements to self-touch and underscore the role of sensorimotor context in forming predictions that attenuate the self-touch intensity. |
| format | Article |
| id | doaj-art-b088975f91f04df7a1cbc989b2c75658 |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-b088975f91f04df7a1cbc989b2c756582025-01-19T06:26:29ZengElsevieriScience2589-00422025-02-01282111643Predictions of bimanual self-touch determine the temporal tuning of somatosensory perceptionNoa Cemeljic0Xavier Job1Konstantina Kilteni2Department of Neuroscience, Karolinska Institutet, Solnavägen 9, 17165 Stockholm, SwedenDepartment of Neuroscience, Karolinska Institutet, Solnavägen 9, 17165 Stockholm, SwedenDepartment of Neuroscience, Karolinska Institutet, Solnavägen 9, 17165 Stockholm, Sweden; Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen 6500HB, the Netherlands; Corresponding authorSummary: We easily distinguish self-touch from the touch of others. This distinction is suggested to arise because the brain predicts the somatosensory consequences of voluntary movements using an efference copy and attenuates the predicted self-touch. However, it remains unclear how these predictions impact somatosensory perception before or after the self-touch occurs. Here, participants discriminated forces applied to their left index finger at different phases of the right hand’s reaching movement toward the left hand. We observed that forces felt progressively weaker during the reaching, reached their minimum perceived intensity at the time of self-touch, and recovered after the movement ended. We further demonstrated that this gradual attenuation vanished during similar reaching movements that did not produce expectations of self-touch between the two hands. Our results indicate a temporal tuning of somatosensory perception during movements to self-touch and underscore the role of sensorimotor context in forming predictions that attenuate the self-touch intensity.http://www.sciencedirect.com/science/article/pii/S2589004224028700Behavioral neuroscienceSensory neuroscienceCognitive neuroscience |
| spellingShingle | Noa Cemeljic Xavier Job Konstantina Kilteni Predictions of bimanual self-touch determine the temporal tuning of somatosensory perception iScience Behavioral neuroscience Sensory neuroscience Cognitive neuroscience |
| title | Predictions of bimanual self-touch determine the temporal tuning of somatosensory perception |
| title_full | Predictions of bimanual self-touch determine the temporal tuning of somatosensory perception |
| title_fullStr | Predictions of bimanual self-touch determine the temporal tuning of somatosensory perception |
| title_full_unstemmed | Predictions of bimanual self-touch determine the temporal tuning of somatosensory perception |
| title_short | Predictions of bimanual self-touch determine the temporal tuning of somatosensory perception |
| title_sort | predictions of bimanual self touch determine the temporal tuning of somatosensory perception |
| topic | Behavioral neuroscience Sensory neuroscience Cognitive neuroscience |
| url | http://www.sciencedirect.com/science/article/pii/S2589004224028700 |
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