A neuroimaging study of interpersonal distance in identical and fraternal twins.Show others and affiliations
2022 (English)In: Human Brain Mapping, ISSN 1065-9471, E-ISSN 1097-0193, Vol. 43, no 11, p. 3508-3523Article in journal (Refereed) Published
Abstract [en]
Keeping appropriate interpersonal distance is an evolutionary conserved behavior that can be adapted based on learning. Detailed knowledge on how interpersonal space is represented in the brain and whether such representation is genetically influenced is lacking. We measured brain function using functional magnetic resonance imaging in 294 twins (71 monozygotic, 76 dizygotic pairs) performing a distance task where neural responses to human figures were compared to cylindrical blocks. Proximal viewing distance of human figures was compared to cylinders facilitated responses in the occipital face area (OFA) and the superficial part of the amygdala, which is consistent with these areas playing a role in monitoring interpersonal distance. Using the classic twin method, we observed a genetic influence on interpersonal distance related activation in the OFA, but not in the amygdala. Results suggest that genetic factors may influence interpersonal distance monitoring via the OFA whereas the amygdala may play a role in experience-dependent adjustments of interpersonal distance.
Place, publisher, year, edition, pages
2022. Vol. 43, no 11, p. 3508-3523
Keywords [en]
SCR, amygdala, emotion, fMRI, fusiform face area, heritability, occipital face area, personal space
National Category
Neurosciences Psychology (excluding Applied Psychology)
Identifiers
URN: urn:nbn:se:miun:diva-44842DOI: 10.1002/hbm.25864ISI: 000782030600001PubMedID: 35417056Scopus ID: 2-s2.0-85128007368OAI: oai:DiVA.org:miun-44842DiVA, id: diva2:1651998
2022-04-142022-04-142022-08-03Bibliographically approved