Inter-group conflict affects inter-brain synchrony during synchronized movements

Gamliel, H. Nathan; Nevat, Michael; Probolovski, H. Z. Gvirts; Karklinsky, Matan; Han, Shihui; Shamay‐Tsoory, Simone G.

doi:10.1016/j.neuroimage.2021.118661

Cited by 20 publications

(9 citation statements)

References 51 publications

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“…Moreover, the oxy-Hb concentration has a better signal-to-noise ratio than deoxy-Hb [ 34 ]. Thus, similar to most previous fNRIS studies [ 15 , 34 – 36 , 40 , 44 , 45 ], the current study focused on the concentration changes of oxy-Hb.…”

Section: Methodsmentioning

confidence: 89%

“…The degree of neural synchronization was predictive of interaction quality [ 39 ]. Of particular interest, neural synchronization among group members has been suggested as a candidate mechanism mediating within-group interaction [ 15 , 40 ], and in-group bonding increased within-group neural synchronization [ 15 , 41 ]. However, previous studies merely focused on the egalitarian group, suffering from not being able to differentiate inter- and intra-status interactions and leaving the social bonding effect on hierarchical interactions an open question.…”

Section: Introductionmentioning

confidence: 99%

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Social bonding in groups of humans selectively increases inter-status information exchange and prefrontal neural synchronization

Ni,

Yang,

2024

PLoS Biol

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Social groups in various social species are organized with hierarchical structures that shape group dynamics and the nature of within-group interactions. In-group social bonding, exemplified by grooming behaviors among animals and collective rituals and team-building activities in human societies, is recognized as a practical adaptive strategy to foster group harmony and stabilize hierarchical structures in both human and nonhuman animal groups. However, the neurocognitive mechanisms underlying the effects of social bonding on hierarchical groups remain largely unexplored. Here, we conducted simultaneous neural recordings on human participants engaged in-group communications within small hierarchical groups (n = 528, organized into 176 three-person groups) to investigate how social bonding influenced hierarchical interactions and neural synchronizations. We differentiated interpersonal interactions between individuals of different (inter-status) or same (intra-status) social status and observed distinct effects of social bonding on inter-status and intra-status interactions. Specifically, social bonding selectively increased frequent and rapid information exchange and prefrontal neural synchronization for inter-status dyads but not intra-status dyads. Furthermore, social bonding facilitated unidirectional neural alignment from group leader to followers, enabling group leaders to predictively align their prefrontal activity with that of followers. These findings provide insights into how social bonding influences hierarchical dynamics and neural synchronization while highlighting the role of social status in shaping the strength and nature of social bonding experiences in human groups.

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Section: Methodsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Social bonding in groups of humans selectively increases inter-status information exchange and prefrontal neural synchronization

Ni,

Yang,

2024

PLoS Biol

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“…At the human level, research suggests that the human brain has the ability to synchronize with other brains creating increased empathy and cooperation which leads to a greater sense of well-being [47]. Functional near-infrared spectroscopy (fNIS) has shown that brain synchrony increases when individuals mirror the body movements of others; while MRI studies have demonstrated the power of eye contact to stimulate the mirror neurons in the limbic system, thus deepening a sense of connection to others and increasing awareness of others' intentions [48].…”

Section: Neuroscience Researchmentioning

confidence: 99%

Identifying the Gaps between Biopsychosocial Research and Human Behavior: Implications for Happiness and Well-Being

Shelton¹,

Hon²

2023

Happiness and Wellness - Biopsychosocial and Anthropological Perspectives

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This chapter reviews recent research in psychology, neuroscience, and quantum physics relating to perception, paradox, synchronicity, brain chemicals, brain mapping, and the so-called social brain, discussing the gaps between scientific findings and the integration of these findings into human behavior. Specific implications of the identified gaps relating to happiness and well-being are identified and seven quantum skills are introduced. These quantum skills are designed to pragmatize recent research; thus, promoting the integration of new scientific knowledge into human behavior. The authors propose future research that measures the efficacy of these skills for creating sustained happiness and well-being at the individual level, as well as increased global flourishing.

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“…Alpha frequency band activity is related to participant perception and consciousness. Additionally, research has revealed that the interbrain synchrony of individuals is influenced by the synchronization of competitive behavior and also by the dynamics within the competitive group ( Gamliel et al, 2021 ). In other words, when individuals compete within their own group as opposed to competing with an external group, their behavior and brain synchronization are higher.…”

Section: Introductionmentioning

confidence: 99%

The absence of one’s intimate partner promotes dyadic competition through enhanced interbrain synchronization between opponents

Jia,

Meng,

Gao

et al. 2024

Front. Psychol.

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Competition is a common occurrence in life, but the influence of intimate relationships on people’s competitiveness remains unknown. Grounded in Darwin’s theory of sexual selection, this study utilized EEG hyperscanning technology to investigate the influence of the presence of romantic partners and the gender of competitors on the interbrain synchronization of female individuals during competitive contexts. The research results showed that in competitive interactions, there was a significant increase in Theta and Alpha frequency band activity between females and their competitors. Interbrain synchronization was strongest when their partners were not nearby and females competed with same gender competitors. The research results indicate that intimate companionship has an impact on the early alertness and late cognitive execution mechanisms of female individuals in competition, and due to intimate relationships, females pay more attention to same-gender competitors. This study demonstrates that the presence of intimate partners can affect a female’s competitive state and brain synchronization with opponents of different genders, improving the theoretical explanation of intimate relationships and competitive interactions.

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Inter-group conflict affects inter-brain synchrony during synchronized movements

Cited by 20 publications

References 51 publications

Social bonding in groups of humans selectively increases inter-status information exchange and prefrontal neural synchronization

Social bonding in groups of humans selectively increases inter-status information exchange and prefrontal neural synchronization

Identifying the Gaps between Biopsychosocial Research and Human Behavior: Implications for Happiness and Well-Being

The absence of one’s intimate partner promotes dyadic competition through enhanced interbrain synchronization between opponents

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