2013 Fiscal Year Final Research Report

Inter-brain neural interaction in social communication

Research Project

Project/Area Number	23650225
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Fusional social brain science
Research Institution	The Institute of Physical and Chemical Research
Principal Investigator	YANAGAWA TORU 独立行政法人理化学研究所, 脳科学総合研究センター, 研究員 (80568858)
Project Period (FY)	2011 – 2013
Keywords	Electrocorticogram / ネットワーク / 社会性
Research Abstract	The goal of this study was to develop a method to extract inter-brain network between two monkeys when they have social interaction. To achieve the goal, we developed three element techniques: 1) A system to record electrocorticogram (ECoG) from two monkeys simultaneously. 2) A method to extract intra-brain network. To make a task simple, we recorded ECoG during conscious and unconscious conditions. We found 4 frequency-specific large-scale networks with unique interaction patterns which related to conscious and unconscious states. 3) A method to extract neural representation of social suppression behavior when two monkeys performed a social food-grab task. We found the spatiotemporal pattern of the information of social hierarchy on the multi cortical regions which reflects a social context-generation process to produce social suppression behavior. In the feature work, I will integrate those element techniques and develop the method to extract inter-brain network between two monkeys.