Osaka, N.,Ikeda, T.,& Osaka, M.
Title:
Effect of intentional bias on agency attribution of animated motion: An
event-related fMRI study
Journal:
PLoS One
doi:
10.1371/journal.pone.0049053
論文URL:
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0049053
Abstract:
Animated movements of simple geometric shapes can readily be interpreted
as depicting social events in which animate agents are engaged in
intentional activity. However, the brain regions associated with such
intention have not been clearly elucidated. In this study, intentional
bias was manipulated using shape and pattern animations while measuring
associated brain activity using event-related functional magnetic
resonance imaging (fMRI). Twenty-five higher-intention involved and
twenty-five lower-intention involved animations were presented to
participants. Behavioral results showed that the degree of agency
attribution of the mental state increased as intentional involvement
increased. fMRI results revealed that the posterior superior temporal
sulcus (STS), inferior temporal gyrus (ITG), inferior frontal gyrus
(IFG), premotor, temporal pole, supramarginal gyrus, and superior
parietal lobule (SPL) were activated while participants viewed the
high-intention animations. In contrast, occipital, lingual, and middle
frontal gyri were activated while the participants viewed the
low-intention animations. These findings suggest that as agent
attribution increases, the visual brain changes its functional role to
the intentional brain and becomes a flexible network for processing
information about social interaction.
著者Contact先の email:
nosaka@bun.kyoto-u.ac.jp
- 投稿タグ
- IntJnlPaper
