Sisterhood predicts similar neural processing of a film
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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-08-15
Major/Subject
Mcode
Degree programme
Language
en
Pages
14
Series
NeuroImage, Volume 297, pp. 1-14
Abstract
Relationships between humans are essential for how we see the world. Using fMRI, we explored the neural basis of homophily, a sociological concept that describes the tendency to bond with similar others. Our comparison of brain activity between sisters, friends and acquaintances while they watched a movie, indicate that sisters’ brain activity is more similar than that of friends and friends’ activity is more similar than that of acquaintances. The increased similarity in brain activity measured as inter-subject correlation (ISC) was found both in higher-order brain areas including the default-mode network (DMN) and sensory areas. Increased ISC could not be explained by genetic relation between sisters neither by similarities in eye-movements, emotional experiences, and physiological activity. Our findings shed light on the neural basis of homophily by revealing that similarity in brain activity in the DMN and sensory areas is the stronger the closer is the relationship between the people.Description
Publisher Copyright: © 2024
Keywords
Brain activity, fMRI, Homophily, Sister, Social neuroscience
Other note
Citation
Bacha-Trams, M, Yorulmaz, G E, Glerean, E, Ryyppö, E, Tapani, K, Virmavirta, E, Saaristo, J, Jääskeläinen, I P & Sams, M 2024, ' Sisterhood predicts similar neural processing of a film ', NeuroImage, vol. 297, 120712, pp. 1-14 . https://doi.org/10.1016/j.neuroimage.2024.120712
