Group decision-making behavior in social dilemmas: Inter-brain synchrony and the predictive role of personality traits

Zhang, Mingming; Jia, Haiqiang; Zheng, Mengxue; Liu, Tao

doi:10.1016/j.paid.2020.110315

Cited by 22 publications

(17 citation statements)

References 24 publications

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“…For example, the perspective-taking scores of the participants were positively correlated with the MFC-IBS during cooperation ( Sun et al, 2020 ). Another study found a negative correlation between the MFC-IBS and the participants’ agreeableness-related trait when they made defection decisions ( Zhang et al, 2021 ). Thus, the increased MFC-IBS here may be related to the process whereby participants pay more attention to their partners’ actions, and make a greater effort to understand and coordinate with them in musical contexts.…”

Section: Discussionmentioning

confidence: 99%

Musical Meter Induces Interbrain Synchronization during Interpersonal Coordination

Zhu

Liu

et al. 2022

eNeuro

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Music induces people to coordinate with one another. Here, we conduct two experiments to examine the underlying mechanism of the interbrain synchronization (IBS) that is induced by interpersonal coordination when people are exposed to musical beat and meter. In experiment 1, brain signals at the frontal cortex were recorded simultaneously from two participants of a dyad by using functional near-infrared spectroscopy (fNIRS) hyperscanning, while each tapped their fingers to aural feedback from their partner (coordination task) or from themselves (independence task) with and without the musical meter. The results showed enhanced IBS at the left-middle frontal cortex in case of the coordination task with musical beat and meter. The IBS was significantly correlated with the participants performance in terms of coordination. In experiment 2, we further examined the IBS while the participants coordinated their behaviors in various metrical contexts, such as strong and weak meters (i.e., high/low loudness of acoustically accenting beats). The results showed that strong meters elicited higher IBS at the middle frontal cortex than weak meters. These findings reveal that the musical beat and meter can affect brain-to-brain coupling in action coordination between people, and provide insights into the interbrain mechanism underlying the effects of music on cooperation.

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Section: Discussionmentioning

confidence: 99%

Musical Meter Induces Interbrain Synchronization during Interpersonal Coordination

Zhu

Liu

et al. 2022

eNeuro

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“…From one aspect, deciding the most comfortable IPD became a complex process after IPD feedback. Neuroimage studies propose the vital role of right-DLPFC (BA9/BA46) in social interactions, such as in the decision-making of ultimatum game (Speitel et al, 2019), and significant IBS shown in the right-DLPFC (BA9/BA46) in the group decision-making behavior (Zhang et al, 2021). From another aspect, the IPD action after feedback is the outcome of the self-IPD and the IPD of partners (teacher/peer student).…”

Section: Brain Activations In Real-time Differing Social Status Inter...mentioning

confidence: 99%

Neural and behavioral alterations of a real-time interpersonal distance (IPD) development process in differing social status interactions

Huang

Izumi

Suzukamo

2022

Front. Behav. Neurosci.

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BackgroundEvidence showed neural changes in interpersonal distance (IPD) interaction, and neural activities are affected by relationships (such as friends or strangers). Behavior studies proved that social status strongly affects IPD between two persons. However, how the differing social status impacts neural alterations in the IPD interactions remains unknown.ObjectivesThe teacher-student relationship is a typical representation of the difference in social status. The present study aims to investigate the IPD performance and brain processes underlying real-time differing social status during the development process from teacher-student interactions.Materials and methodsWe designed three within-subject experiments corresponding to the inclusion, control, and affection stages of IPD. Altogether, 38 valid healthy participants participated in three experiments with a teacher (differing social status condition, DS condition) and a peer student (peer social status condition, PS condition) separately. This study employed functional near-infrared spectroscopy (fNIRS) and modified real-time stop-distance paradigms to record IPD performance and neural processes.ResultsFor IPD performance, significantly larger IPD gaps were shown in the DS condition than in the PS condition, and IPD feedback affected IPD performance. For neural alterations, activated frontopolar area (FPA, BA10), dorsolateral prefrontal cortex (DLPFC, BA9/BA46), and Broca’s area (BA45) were observed across the IPD stages. Importantly, brain activation shifts with the development of IPD. In addition, results showed that differences in Oxy-Hb changes were located in the FPA (BA10), DLPFC (BA9/BA46), and Broca’s area (BA45) between the DS and PS conditions across IPD stages. Additionally, negative correlations were found between Oxy-Hb changes and IPD performance.ConclusionWe propose prefrontal cortex (PFC) and Broca’s area involvement in IPD interactions, initially focusing on evaluation and action periods, and later on IPD-evaluation processes after feedback. In addition, a difference in Oxy-Hb activities implies the complexity of relationships and social status in IPD interactions.

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“…The center point of each emitter-detector pair (located 3 cm apart) was defined as the measurement channel (we provide a video of the precise positions of the fNIRS channels in Supplementary Materials). The precise positions of the fNIRS channels was measured by a 3D electromagnetic tracking device (FASTRAK; Polhemus, United States) and registered on the Montreal neurological Institute (MNI) brain space using a virtual registration method (Figure 2) (Zhang et al, 2021). The sampling rate is 42 Hz.…”

Section: Apparatusmentioning

confidence: 99%

Interbrain Synchrony of Team Collaborative Decision-Making: An fNIRS Hyperscanning Study

Zhang

Jia

Wang

2021

Front. Hum. Neurosci.

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In many situations, decision-making behaviors are mostly composed of team patterns (i.e., more than two persons). However, brain-based models that inform how team interactions contribute and impact team collaborative decision-making (TCDM) behavior, is lacking. To examine the neural substrates activated during TCDM in realistic, interpersonal interaction contexts, dyads were asked to model TCDM toward their opponent, in a multi-person prisoner’s dilemma game, while neural activity was measured using functional near infrared spectroscopy. These experiments resulted in two main findings. First, there are different neural substrates between TCDM and ISDM, which were modulated by social environmental cues. i.e., the low incentive reward yielded higher activation within the left inferior frontal gyrus (IFG), in individual separately decision-making (ISDM) stage while the dorsolateral prefrontal cortex (DLPFC) and the middle frontopolar area was activated in TCDM stage. The high incentive reward evoked a higher interbrain synchrony (IBS) value in the right IFG in TCDM stage. Second, males showed higher activation in the DLPFC and the middle frontopolar area during ISDM, while females evoked higher IBS in the right IFG during TCDM. These sex effects suggest that in individual social dilemma situations, males and females may separately depend on non-social and social cognitive ability to make decisions, while in the social interaction situations of TCDM, females may depend on both social and non-social cognitive abilities. This study provide a compelling basis and interesting perspective for future neuroscience work of TCDM behaviors.

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Group decision-making behavior in social dilemmas: Inter-brain synchrony and the predictive role of personality traits

Cited by 22 publications

References 24 publications

Musical Meter Induces Interbrain Synchronization during Interpersonal Coordination

Musical Meter Induces Interbrain Synchronization during Interpersonal Coordination

Neural and behavioral alterations of a real-time interpersonal distance (IPD) development process in differing social status interactions

Interbrain Synchrony of Team Collaborative Decision-Making: An fNIRS Hyperscanning Study

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