Role of the right inferior frontal gyrus in turn-based cooperation and competition: A near-infrared spectroscopy study

Tao Liu, Hirofumi Saito, Misato Oi

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Interpersonal interaction can be classified into two types: concurrent and turn-based interaction, requiring synchronized body-movement and complementary behaviors across persons, respectively. To examine the neural mechanism of turn-based interaction, we simultaneously measured paired participants activations in their bilateral inferior frontal gyrus (IFG) and the bilateral inferior parietal lobule (IPL) in a turn-taking game using near-infrared spectroscopy (NIRS). Pairs of participants were assigned to either one of two roles (game builder and the partner) in the game. The builder's task was to make a copy of a target disk-pattern by placing disks on a monitor, while the partner's task was to aid the builder in his/her goal (cooperation condition) or to obstruct it (competition condition). The builder always took the initial move and the partner followed. The NIRS data demonstrated an interaction of role (builder vs. partner) by task-type (cooperation vs. competition) in the right IFG. The builder in the cooperation condition showed higher activation than the cooperator, but the same builder in the competition condition showed lower activation than in the cooperation condition. The activations in the competitor-builder pairs showed positive correlation between their right IFG, but the activations in the cooperator-builder pairs did not. These results suggest that the builder's activation in the right IFG is reduced/increased in the context of interacting with a cooperative/competitive partner. Also, the competitor may actively trace the builder's disk manipulation, leading to deeper mind-set synchronization in the competition condition, while the cooperator may passively follow the builder's move, leading to shallower mind-set synchronization in the cooperation condition.

Original languageEnglish
Pages (from-to)17-23
Number of pages7
JournalBrain and Cognition
Volume99
DOIs
Publication statusPublished - Oct 1 2015
Externally publishedYes

Fingerprint

Near-Infrared Spectroscopy
Prefrontal Cortex
Parietal Lobe
Builders
Infrared Spectroscopy
Inferior Frontal Gyrus
Activation

All Science Journal Classification (ASJC) codes

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Cognitive Neuroscience

Cite this

Role of the right inferior frontal gyrus in turn-based cooperation and competition : A near-infrared spectroscopy study. / Liu, Tao; Saito, Hirofumi; Oi, Misato.

In: Brain and Cognition, Vol. 99, 01.10.2015, p. 17-23.

Research output: Contribution to journalArticle

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