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Different impressions of other agents obtained through social interaction uniquely modulate dorsal and ventral pathway activities in the social human brain

Takahashi, Hideyuki and Terada, Kazunori and Morita, Tomoyo and Suzuki, Shinsuke and Haji, Tomoki and Kozima, Hideki and Yoshikawa, Masahiro and Matsumoto, Yoshio and Omori, Takashi and Asada, Minoru and Naito, Eiichi (2014) Different impressions of other agents obtained through social interaction uniquely modulate dorsal and ventral pathway activities in the social human brain. Cortex, 58 . pp. 289-300. ISSN 0010-9452. http://resolver.caltech.edu/CaltechAUTHORS:20140609-110716780

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Abstract

Internal (neuronal) representations in the brain are modified by our experiences, and this phenomenon is not unique to sensory and motor systems. Here, we show that different impressions obtained through social interaction with a variety of agents uniquely modulate activity of dorsal and ventral pathways of the brain network that mediates human social behavior. We scanned brain activity with functional magnetic resonance imaging (fMRI) in 16 healthy volunteers when they performed a simple matching-pennies game with a human, human-like android, mechanical robot, interactive robot, and a computer. Before playing this game in the scanner, participants experienced social interactions with each opponent separately and scored their initial impressions using two questionnaires. We found that the participants perceived opponents in two mental dimensions: one represented “mind-holderness” in which participants attributed anthropomorphic impressions to some of the opponents that had mental functions, while the other dimension represented “mind-readerness” in which participants characterized opponents as intelligent. Interestingly, this “mind-readerness” dimension correlated to participants frequently changing their game tactic to prevent opponents from envisioning their strategy, and this was corroborated by increased entropy during the game. We also found that the two factors separately modulated activity in distinct social brain regions. Specifically, mind-holderness modulated activity in the dorsal aspect of the temporoparietal junction (TPJ) and medial prefrontal and posterior paracingulate cortices, while mind-readerness modulated activity in the ventral aspect of TPJ and the temporal pole. These results clearly demonstrate that activity in social brain networks is modulated through pre-scanning experiences of social interaction with a variety of agents. Furthermore, our findings elucidated the existence of two distinct functional networks in the social human brain. Social interaction with anthropomorphic or intelligent-looking agents may distinctly shape the internal representation of our social brain, which may in turn determine how we behave for various agents that we encounter in our society.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://www.sciencedirect.com/science/article/pii/S0010945214001142PublisherArticle
http://dx.doi.org/10.1016/j.cortex.2014.03.011DOIArticle
ORCID:
AuthorORCID
Suzuki, Shinsuke0000-0002-9816-9423
Additional Information:© 2014 Received 4 August 2013. Reviewed 9 September 2013. Revised 10 December 2013. Accepted 27 March 2014. Published online xxx. The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http:// creativecommons.org/licenses/by/3.0/). In Press, Corrected Proof — Note to users. This study was supported by a Grant-in-Aid for Specially Promoted Research (No. 24000012), a Grant-in-Aid for Scientific Research on Innovative Areas “Founding a creative society via collaboration between humans and robots (No. 4101)” (No. 24118708), Grant-in-Aid for Young Scientists (B) (No. 23700321), and a Tamagawa University Global Center of Excellence grant from the Ministry of Education, Culture, Sports, Science, and Technology (_501100001700).
Funders:
Funding AgencyGrant Number
Ministry of Education, Culture, Sports, Science, and Technology24000012
Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan24118708
Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan23700321
Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan501100001700
Subject Keywords:Competitive game; fMRI; Mentalizing; Robot; Social brain
Record Number:CaltechAUTHORS:20140609-110716780
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140609-110716780
Official Citation:Hideyuki Takahashi, Kazunori Terada, Tomoyo Morita, Shinsuke Suzuki, Tomoki Haji, Hideki Kozima, Masahiro Yoshikawa, Yoshio Matsumoto, Takashi Omori, Minoru Asada, Eiichi Naito, Different impressions of other agents obtained through social interaction uniquely modulate dorsal and ventral pathway activities in the social human brain, Cortex, Volume 58, September 2014, Pages 289-300, ISSN 0010-9452, http://dx.doi.org/10.1016/j.cortex.2014.03.011. (http://www.sciencedirect.com/science/article/pii/S0010945214001142)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46150
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:09 Jun 2014 18:39
Last Modified:23 Oct 2017 16:55

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