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Processing of affective and emotionally neutral tactile stimuli in the insular cortex
Univ Gothenburg, Sweden.
Univ Gothenburg, Sweden; Sahlgrens Univ Hosp, Sweden.
Linköping University, Department of Clinical and Experimental Medicine, Center for Social and Affective Neuroscience. Linköping University, Faculty of Medicine and Health Sciences. Univ Gothenburg, Sweden.
2019 (English)In: Developmental Cognitive Neuroscience, ISSN 1878-9293, E-ISSN 1878-9307, Vol. 35, p. 94-103Article in journal (Refereed) Published
Abstract [en]

The insula is important for the processing of pleasant aspects of touch whereas its role in the processing of emotionally neutral touch has been less explored. Here, we used a network approach to investigate the insular processing of pleasant stroking touch and emotionally neutral vibratory touch, analysing functional magnetic resonance imaging data from 23 healthy adult participants. Vibration and skin stroking activated areas in the posterior, middle and anterior insula. Psychophysiological interaction analyses suggested that skin stroking increased functional connectivity between the posterior and ventral anterior insula. Vibration instead increased functional connectivity between the posterior and dorsal anterior insula, and induced a stronger decrease of the default mode network activity compared to stroking. These results confirmed findings from previous studies showing that the posterior insula processes affective touch information. We suggest that this is accomplished by relaying tactile information from the posterior insula to ventral anterior insula, an area tightly connected to the emotional parts of the brain. However, our results also suggested that the insula processes tactile information with less emotional valence. A central hub in this processing seemed to be the right dorsal anterior insula.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD , 2019. Vol. 35, p. 94-103
Keywords [en]
Touch; fMRI; Insula; Resting state networks
National Category
Neurology
Identifiers
URN: urn:nbn:se:liu:diva-154679DOI: 10.1016/j.dcn.2017.12.006ISI: 000456714500016PubMedID: 29291986OAI: oai:DiVA.org:liu-154679DiVA, id: diva2:1292862
Available from: 2019-03-01 Created: 2019-03-01 Last updated: 2019-03-26

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Olausson, Håkan
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Center for Social and Affective NeuroscienceFaculty of Medicine and Health Sciences
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CiteExportLink to record
Permanent link

Direct link
Cite
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