Quantification of inter-brain coupling: A review of current methods used in haemodynamic and electrophysiological hyperscanning studies

NeuroImage, Journal Year: 2023, Volume and Issue: 280, P. 120354 - 120354

Published: Sept. 4, 2023

Hyperscanning is a form of neuroimaging experiment where the brains two or more participants are imaged simultaneously whilst they interact. Within domain social neuroscience, hyperscanning increasingly used to measure inter-brain coupling (IBC) and explore how brain responses change in tandem during interaction. In addition cognitive research, some have suggested that quantification interplay between interacting can be as biomarker for variety mechanisms aswell investigate mental health developmental conditions including schizophrenia, anxiety autism. However, many different methods been quantify this lead questions about comparability across studies reduce research reproducibility. Here, we review quantifying IBC, suggest ways moving forward. Following PRISMA guidelines, reviewed 215 studies, four imaging modalities: functional near-infrared spectroscopy (fNIRS), magnetic resonance (fMRI), electroencephalography (EEG) magnetoencephalography (MEG). Overall, identified total 27 compute IBC. The most common modality fNIRS, by 119 89 which adopted wavelet coherence. Based on results literature survey, first report summary statistics field, followed brief overview each signal obtained from hyperscanning. We then discuss rationale, assumptions suitability method modalities Finally, issues surrounding interpretation method.

Language: Английский

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Central (Hemodynamic) and Peripheral (Autonomic) Synergy During Persuasion Within a Shared Decision-Making Process

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(3), P. 1361 - 1361

Published: Jan. 28, 2025

This hyperscanning study explores the central (hemodynamic) and peripheral (autonomic) markers of persuasion within a shared decision-making process. Decision-making was examined through task where two decision-makers assumed role Persuader (P-der) Persuaded (P-ded), with P-der aiming to increase group decision orientation in P-ded. Data were collected from 14 dyads using functional near-infrared spectroscopy measure prefrontal cortex (PFC) hemodynamic activity collection recording autonomic indices including heart rate (HR) HR variability (HRV). The analysis focused on phases: Phase 1, presented scenario enacted their persuasive strategy, 2, characterized by P-ded’s response. results revealed significant effects dissimilarity at dyadic level. Compared 2 included higher oxygenated hemoglobin PFC, indicating greater inter-dyadic divergence during increased when P-ded spoke, suggesting disrupted synergy, while HRV potentially reflecting differences stress regulation. These findings suggest that neurophysiological coherence varies based phases decision-making, introducing dissonance synergy. single-subject approaches, analyses offer more accurate understanding interpersonal nature dynamics decision-making.

Language: Английский

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Distinct inter-brain synchronization patterns underlying group decision-making under uncertainty with partners in different interpersonal relationships

NeuroImage, Journal Year: 2023, Volume and Issue: 272, P. 120043 - 120043

Published: March 31, 2023

Humans may behave in different manners when making decisions with friends and strangers. Whether the interpersonal relationship characteristics of individuals group affected decision-making under uncertainty real-time interaction remains unknown. Using turn-based Balloon Analogue Risk Task (BART), present study examined propensity partners relationships orientations. Corresponding inter-brain synchronization (IBS) patterns at prefrontal cortex (PFC) were also uncovered fNIRS-based hyperscanning approach. Behavioral results identified that dyads friend exhibited uncertainty-averse comparing stranger group. The fNIRS reported feedback-related IBS left inferior frontal gyrus (l-IFG) medial frontopolar (mFPC) during feedbacks was modulated by relationships. all channels PFC positive negative feedbacks, respectively, predicted groups based on support vector machine (SVM) algorithm. moderating role social value orientation (SVO) verified mediation effect dyad closeness via right lateral (r-FPC). These findings demonstrated disparate behavioral responses underlying

Language: Английский

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Three heads are better than one: cooperative learning brains wire together when a consensus is reached

Cerebral Cortex, Journal Year: 2022, Volume and Issue: 33(4), P. 1155 - 1169

Published: March 9, 2022

Abstract Theories of human learning converge on the view that individuals working together learn better than do those independently. Little is known, however, about neural mechanisms through cooperation. We addressed this research gap by leveraging functional near-infrared spectroscopy to record brain activity triad members in a group simultaneously. Triads were instructed analyze an ancient Chinese poem either cooperatively or Four main findings emerged. First, we observed significant within-group synchronization (GNS) left superior temporal cortex, supramarginal gyrus, and postcentral gyrus during cooperative compared with independent learning. Second, enhancement GNS triads was amplified when consensus reached (vs. elaboration argument) Third, predictive outcome at early stage (156–170 s after initiated). Fourth, social factors such as closeness (e.g. how much learners liked one other) reflected co-varied engagement. These results provide neuroscientific support for Piaget’s theory cognitive development favor notion successful cooperation involves dynamic consensus-building, which captured patterns shared across group.

Language: Английский

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The single- and dual-brain mechanisms underlying the adviser's confidence expression strategy switching during influence management

NeuroImage, Journal Year: 2023, Volume and Issue: 270, P. 119957 - 119957

Published: Feb. 22, 2023

Effective influence management during advice-giving requires individuals to express confidence in the advice properly and switch timely between 'competitive' strategy 'defensive' strategy. However, how advisers these two strategies, whether why there exist individual differences this process remain elusive. We used an game that manipulated incentive contexts (Incentivized/Non-Incentivized) induce adviser's expression switching measured brain activities of adviser advisee concurrently using functional near-infrared spectroscopy (fNIRS). Behaviorally, we observed switching. Some applied when incentivized not incentivized, while others incentivized. This effect was mediated by perceived stress each condition reflected frequencies advice-taking advisees. Neurally, activation dorsolateral prefrontal cortex (DLPFC) supported switching, as well interpersonal neural synchronization (INS) temporoparietal junction (TPJ) management. two-in-one process, i.e., corresponding management, linked modulated strength DLPFC-TPJ connectivity adviser. further developed a descriptive model contributed understanding

Language: Английский

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Positive resonance: Successful interpersonal emotion regulation facilitated relationship closeness by enhanced inter-brain synchronization

NeuroImage, Journal Year: 2025, Volume and Issue: unknown, P. 121042 - 121042

Published: Jan. 1, 2025

Interpersonal emotion regulation (IER) refers to the dynamic process where a regulator employs specific strategies alleviate target's distress. It remains unclear whether successful IER could facilitate interpersonal relationship closeness (IRC). The present study aimed explore IER, based on two typical strategies-cognitive reappraisal (CR) and expressive suppression (ES)-for down-regulating negative emotions, enhance IRC among friend dyads, identify underlying neural correlates of this using functional near-infrared spectroscopy system. Seventy-four female dyads (friends) were randomly assigned one strategy groups (CR vs. ES), with participant as target other regulator. Our finds revealed that both have down-regulated however, CR was associated more outcomes (more improvement targets' emotions; higher IRC) than ES strategy. recruited enhanced brain synchronization (IBS) prefrontal temporal areas dyads. IBS above-mentioned networks in sadness, reversed pattern found anger, inferring successive effective anger. increased these regions played mediational role between effectiveness emotions increment IRC. findings coupling mechanism through which fostered supportive social bonds.

Language: Английский

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The influence of social status and promise levels in trust games: An Event-Related Potential (ERP) study

Cognitive Affective & Behavioral Neuroscience, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

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Group identification drives brain integration for collective performance

Published: April 1, 2025

Group identification may influence collective behaviors and result in variations performance. However, the evidence for this hypothesis neural mechanisms involved remain elusive. To end, we conducted a study using both single-brain activation multi-brain synchronization analyses to investigate how group influences problem-solving murder mystery case. Our results showed that groups with high levels of performed better individually compared those low identification, as supported by dorsolateral prefrontal cortex (DLPFC). Furthermore, high-identification also enhanced performance, within-group (GNS) orbitofrontal (OFC). The DLPFC-OFC connectivity played crucial role linking individual Overall, our provides two-in-one model explain affects decision-making processes, offering valuable insights into dynamics interactions.

Language: Английский

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Dual-MEG interbrain synchronization during turn-taking verbal interactions between mothers and children

Cerebral Cortex, Journal Year: 2022, Volume and Issue: 33(7), P. 4116 - 4134

Published: Sept. 20, 2022

Abstract Verbal interaction and imitation are essential for language learning development in young children. However, it is unclear how mother–child dyads synchronize oscillatory neural activity at the cortical level turn-based speech interactions. Our study investigated interbrain synchrony pairs during a turn-taking paradigm of verbal imitation. A dual-MEG (magnetoencephalography) setup was used to measure brain from interactive simultaneously. Interpersonal synchronization compared between socially noninteractive tasks (passive listening pure tones). Interbrain networks showed increased conditions theta alpha bands. Enhanced interpersonal observed right angular gyrus, triangular, left opercular parts inferior frontal gyrus. Moreover, these parietal regions appear be hubs exhibiting high number connections. These areas could serve as marker component social communication. The present first investigate interactions using setup. results advance our understanding suggest role “gating” learning.

Language: Английский

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Persuader-receiver neural coupling underlies persuasive messaging and predicts persuasion outcome

Cerebral Cortex, Journal Year: 2023, Volume and Issue: 33(11), P. 6818 - 6833

Published: Jan. 25, 2023

Abstract Opportunities to persuade and be persuaded are ubiquitous. What interpersonal neural pathway in real-world settings determining successful information propagation naturalistic two-person persuasion scenarios? Hereby, we extended prior research on a dyadic paradigm (NDP) using dual-fNIRS protocol simultaneously measured the activity from persuader-receiver dyads while they engaged modified “Arctic Survival Task.” Investigating whether coupling between persuaders receivers underpinning of persuading predict outcomes (i.e., receiver’s compliance). Broadly, indicated that persuasive arguments increase significantly compared non-persuasive left superior temporal gyrus-superior frontal gyrus gyrus-inferior gyrus. G-causality indices further revealed directionality flows persuader receiver. Critically, could better predictor relative traditional self-report measures. Eventually, dynamics incorporating video recording marked micro-level processes response messages possibly reflecting time might occurs. The initial case with targeted views is valuable as first step encouraging compliance. Our investigation represented an innovative approach toward comprehending neuroscience psychology underlying complex true persuasion.

Language: Английский

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