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| Content Provider | frontiers |
|---|---|
| Author | Meijer, Larissa L. Schielen, Zoë A. van Ree, Kim Y. Dijkerman, H. Chris |
| Abstract | Introduction: Itch is a common symptom in dermatologic and other diseases and can have a severe impact on quality of life and mental health. As a proportion of patients with itch-symptoms is resistant to commonly used anti-histamine treatments, development of new treatments is desirable. Past research on pain, itch and affective touch (i.e. slow, gentle stroking of the skin activating c-tactile fibers) revealed an inhibitory relationship between affective touch and pain and between pain and itch. Given the overlap in neural processing between these three sensory submodalities, a possible interaction between affective touch and itch might be expected. This study investigated whether there is a relationship between itch and affective touch, and if so, whether affective touch inhibits itch. Methodology: Itch was electrically induced with the of use of electrodes that were placed at the ventral side of the wrist of 61 participants. A within-subject design was conducted with two conditions. An experimental -affective touch- condition (stroking the forearm with a soft brush at 3 cm/s) and a control -non-affective touch- condition (stroking the forearm with a soft brush at 18 cm/s). Touch was applied on the dorsal side of the forearm, the same arm as were the electrodes were placed. For each condition itch was induced for 20 minutes, with every 2 minutes a VAS-scale measurement of the level of experienced itch. Results: Both types of touch reduced the experienced itch compared to baseline (p < .01, partial η^2 = .67). However, affective touch had an additional significant relieving effect compared to non-affective touch (p =.03, partial η^2= .08 ) . Compared to the control condition, affective touch had a relieving effect on itch. The alleviation of itch started after 2 minutes of stroking and continued to increase up till 6 minutes, where after the relieving effect stabilized but still persisted. Conclusion: This finding suggest that affective touch, as with acute pain, has a relieving effect on mechanically electrically induced itch. |
| ISSN | 2296858X |
| DOI | 10.3389/fmed.2021.628020 |
| Volume Number | 8 |
| Journal | Frontiers in Medicine |
| Language | English |
| Publisher Date | 2021-02-15 |
| Access Restriction | Open |
| Subject Keyword | C-fibers Relief Itch Somatosensory Affective touch |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine |
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