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Touch aversion in patients with interpersonal traumatization
Tech Univ Dresden, Germany.
Tech Univ Dresden, Germany.
Univ Oslo, Norway.
Tech Univ Dresden, Germany.
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2019 (English)In: Depression and anxiety (Print), ISSN 1091-4269, E-ISSN 1520-6394, Vol. 36, no 7, p. 635-646Article in journal (Refereed) Published
Abstract [en]

Background Interpersonal touch is a key aspect of human interaction and a usually very comforting experience. For patients suffering from posttraumatic stress disorders (PTSD) caused by interpersonal traumatization, such touch is affectively ambiguous. Methods In two studies, we investigated the experience and neural processing of various types of interpersonal and impersonal touch in patients as compared with healthy controls. Results Patients strongly disliked show, interpersonal skin-to-skin stroking, while controls appreciated this kind of touch. No group differences were observed for ratings of impersonal touch. Similarly, the neural activation differed between groups for interpersonal, but not for impersonal touch. The interpersonal touch aversion in patients was accompanied by enhanced blood-oxygen-level-dependent response in the superior temporal gyrus and by a pronounced reduction of response in the hippocampus. This reduction was significantly correlated to symptoms of negative alterations and arousal within the patients. Conclusion We interpret the hippocampal suppression as an attempt to control traumatic memories, evoked by interpersonal touch. This mechanism may maintain the aversion of interpersonal touch in patients with interpersonal trauma-related PTSD.

Place, publisher, year, edition, pages
WILEY , 2019. Vol. 36, no 7, p. 635-646
Keywords [en]
fMRI; hippocampus; PTSD; superior temporal; touch
National Category
Psychiatry
Identifiers
URN: urn:nbn:se:liu:diva-159065DOI: 10.1002/da.22914ISI: 000474304700007PubMedID: 31209965OAI: oai:DiVA.org:liu-159065DiVA, id: diva2:1338412
Note

Funding Agencies|Graduate Academy of TU Dresden - German Academic Exchange Service

Available from: 2019-07-22 Created: 2019-07-22 Last updated: 2019-07-22

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Hamilton, Paul J.

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Center for Social and Affective NeuroscienceFaculty of Medicine and Health Sciences
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf