Culture shapes spontaneous brain dynamics - Shared versus idiosyncratic neural features among Chinese versus Canadian subjects

Environmental factors, such as culture, are known to shape individual variation in brain activity including spontaneous activity, but less is known about their population-level effects. Eastern and Western cultures differ strongly in their cultural norms about relationships between individuals. For...

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Veröffentlicht in:Social neuroscience Jg. 18; H. 5; S. 312 - 330
Hauptverfasser: Xu, Jiawei, Wainio-Theberge, Soren, Wolff, Annemarie, Qin, Pengmin, Zhang, Yihui, She, Xuan, Wang, Yingying, Wolman, Angelika, Smith, David, Ignaszewski, Julia, Choueiry, Joelle, Knott, Verner, Scalabrini, Andrea, Northoff, Georg
Format: Journal Article
Sprache:Englisch
Veröffentlicht: England Routledge 01.12.2023
Taylor & Francis Ltd
Schlagworte:
Brain - physiology
Cross-Cultural Comparison
Culture
East Asian People
EEG
Electroencephalography
Environmental factors
Humans
Individuality
inter-subject variability
resting state activity
spectral dynamics
spectral dynamics
resting state activity
inter-subject variability
EEG
Culture
ISSN:1747-0919, 1747-0927, 1747-0927
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Zusammenfassung:Environmental factors, such as culture, are known to shape individual variation in brain activity including spontaneous activity, but less is known about their population-level effects. Eastern and Western cultures differ strongly in their cultural norms about relationships between individuals. For example, the collectivism, interdependence and tightness of Eastern cultures relative to the individualism, independence and looseness of Western cultures, promote interpersonal connectedness and coordination. Do such cultural contexts therefore influence the group-level variability of their cultural members' spontaneous brain activity? Using novel methods adapted from studies of inter-subject neural synchrony, we compare the group-level variability of resting state EEG dynamics in Chinese and Canadian samples. We observe that Chinese subjects show significantly higher inter-subject correlation and lower inter-subject distance in their EEG power spectra than Canadian subjects, as well as lower variability in theta power and alpha peak frequency. We demonstrate, for the first time, different relationships among subjects' resting state brain dynamics in Chinese and Canadian samples. These results point to more idiosyncratic neural dynamics among Canadian participants, compared with more shared neural features in Chinese participants.
Bibliographie:ObjectType-Article-1
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ISSN:1747-0919
1747-0927
1747-0927
DOI:10.1080/17470919.2023.2278199