Japanese Journal of Physiological Anthropology
Online ISSN : 2432-0986
Print ISSN : 1342-3215
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  • Yuki EDA, Yuki IKEDA, Yuki NISHIMURA, Ichiro HISANAGA, Kazuo ISODA, Sh ...
    2020 Volume 25 Issue 1 Pages 9-14
    Published: February 25, 2020
    Released: February 25, 2020
    JOURNALS FREE ACCESS

    In this study, we investigated the effect of projecting a face image to a curved surface on brain activity related to facial expression cognition. The participants observed the facial expression images that appear on the curved surface (cylinder) and the flat surface. The EEG was measured, and event-related potentials such as N170, VPP and LPP, which are considered to reflect composition processing of the facial expression, were compared between the surface conditions. As a result, the N170 latency under curved surface condition was significantly longer than that of the flat surface condition. Similar trend was observed in VPP. These results suggested that the face image projected on the curved surface imposes more mental load on the observer while the observation.

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