fnint-04-00127.pdf (2.31 MB)
"Stay tuned": inter-individual neural synchronization during mutual gaze and joint attention
journal contribution
posted on 2023-06-08, 16:51 authored by Daisuke N Saito, Hiroki C Tanabe, Keise Izuma, Masamichi J Hayashi, Yusuke Morito, Hidetsugu Komeda, Hitoshi Uchiyama, Hirotaka Kosaka, Hidehiko Okazawa, Yasuhisa Fujibayashi, Norihiro SadatoEye contact provides a communicative link between humans, prompting joint attention. As spontaneous brain activity might have an important role in the coordination of neuronal processing within the brain, their inter-subject synchronization might occur during eye contact. To test this, we conducted simultaneous functional MRI in pairs of adults. Eye contact was maintained at baseline while the subjects engaged in real-time gaze exchange in a joint attention task. Averted gaze activated the bilateral occipital pole extending to the right posterior superior temporal sulcus, the dorso-medial prefrontal cortex, and the bilateral inferior frontal gyrus. Following a partner's gaze toward an object activated the left intraparietal sulcus. After all the task-related effects were modeled out, inter-individual correlation analysis of residual time-courses was performed. Paired subjects showed more prominent correlations than non-paired subjects in the right inferior frontal gyrus, suggesting that this region is involved in sharing intention during eye contact that provides the context for joint attention.
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- Published
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- Published version
Journal
Frontiers in Integrative NeuroscienceISSN
1662-5145Publisher
FrontiersExternal DOI
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4Page range
127Department affiliated with
- Psychology Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2014-03-10First Open Access (FOA) Date
2014-03-10First Compliant Deposit (FCD) Date
2014-03-10Usage metrics
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