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Réveillé C, Vergotte G, Perrey S, Bosselut G. Using interbrain synchrony to study teamwork: A systematic review and meta-analysis. Neurosci Biobehav Rev 2024; 159:105593. [PMID: 38373643 DOI: 10.1016/j.neubiorev.2024.105593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/19/2024] [Accepted: 02/14/2024] [Indexed: 02/21/2024]
Abstract
It has been proposed that interbrain synchrony (IBS) may help to elucidate the neural mechanisms underpinning teamwork. As hyperscanning studies have provided abundant findings on IBS in team environments, the current review aims to synthesize the findings of hyperscanning studies in a way that is relevant to the teamwork research. A systematic review was conducted. Included studies were classified according to the IPO (i.e. input, process, output) model of teamwork. Three multi-level meta-analyses were performed to quantify the associations between IBS and the three IPO variables. The methodology followed PRISMA guidelines and the protocol was pre-registered (https://osf.io/7h8sa/). Of the 229 studies, 41 were included, representing 1326 teams. The three meta-analyses found statistically significant positive effects, indicating a positive association between IBS and the three IPO teamwork variables. This study provides evidence that IBS is a relevant measure of the teamwork process and argues for the continued use of IBS to study teamwork.
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Affiliation(s)
- Coralie Réveillé
- EuroMov Digital Health in Motion (Univ Montpellier, IMT Mines d'Alès), 700 avenue du Pic Saint Loup, Montpellier 34090, France.
| | - Grégoire Vergotte
- EuroMov Digital Health in Motion (Univ Montpellier, IMT Mines d'Alès), 700 avenue du Pic Saint Loup, Montpellier 34090, France
| | - Stéphane Perrey
- EuroMov Digital Health in Motion (Univ Montpellier, IMT Mines d'Alès), 700 avenue du Pic Saint Loup, Montpellier 34090, France
| | - Grégoire Bosselut
- EuroMov Digital Health in Motion (Univ Montpellier, IMT Mines d'Alès), 700 avenue du Pic Saint Loup, Montpellier 34090, France
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2
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Li Z, Zhang W, Du Y. Neural mechanisms of intertemporal and risky decision-making in individuals with internet use disorder: A perspective from directed functional connectivity. J Behav Addict 2023; 12:907-919. [PMID: 38047946 PMCID: PMC10786221 DOI: 10.1556/2006.2023.00068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/01/2023] [Accepted: 11/10/2023] [Indexed: 12/05/2023] Open
Abstract
Background and aims The intertemporal and risk decision-making impairments are vital cognitive mechanisms in internet use disorder (IUD). However, the underlying neural mechanisms for these two decision-making dysfunctions in individuals with IUD remain unclear. Methods This study employed Functional Near-Infrared Spectroscopy (fNIRS) to record changes in blood oxygen concentration in the prefrontal cortex of individuals with IUD during intertemporal and risk decision-making tasks. Results The findings revealed that the intertemporal decision-making deficits in IUD group were primarily associated with reduced activation in the left dorsolateral prefrontal cortex (dlPFC) and orbitofrontal cortex (OFC) and FC from the left dlPFC to the right dlPFC. On the other hand, risk decision-making impairments were linked to decreased OFC activation and weakened functional connectivity from the left dlPFC to the right dlPFC and OFC. Discussions and Conslusions These results suggested that while there were common neural mechanisms underlying intertemporal and risk decision-making impairments in individuals with IUD, specific neural foundations existed for each type of dysfunction.
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Affiliation(s)
- Ziyi Li
- School of Psychology, Central China Normal University, Hubei, China
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Wuhan, China
- Hubei Human Development and Mental Health Key Laboratory (Central China Normal University), China
| | - Wei Zhang
- School of Psychology, Central China Normal University, Hubei, China
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Wuhan, China
- Hubei Human Development and Mental Health Key Laboratory (Central China Normal University), China
| | - Yunjing Du
- School of Psychology, Central China Normal University, Hubei, China
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Wuhan, China
- Hubei Human Development and Mental Health Key Laboratory (Central China Normal University), China
- Multidisciplinary Digital Publishing Institute, Switzerland
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3
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Hakim U, De Felice S, Pinti P, Zhang X, Noah JA, Ono Y, Burgess PW, Hamilton A, Hirsch J, Tachtsidis I. Quantification of inter-brain coupling: A review of current methods used in haemodynamic and electrophysiological hyperscanning studies. Neuroimage 2023; 280:120354. [PMID: 37666393 DOI: 10.1016/j.neuroimage.2023.120354] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/06/2023] Open
Abstract
Hyperscanning is a form of neuroimaging experiment where the brains of two or more participants are imaged simultaneously whilst they interact. Within the domain of social neuroscience, hyperscanning is increasingly used to measure inter-brain coupling (IBC) and explore how brain responses change in tandem during social interaction. In addition to cognitive research, some have suggested that quantification of the interplay between interacting participants can be used as a biomarker for a variety of cognitive mechanisms aswell as to investigate mental health and developmental conditions including schizophrenia, social anxiety and autism. However, many different methods have been used to quantify brain coupling and this can lead to questions about comparability across studies and reduce research reproducibility. Here, we review methods for quantifying IBC, and suggest some ways moving forward. Following the PRISMA guidelines, we reviewed 215 hyperscanning studies, across four different brain imaging modalities: functional near-infrared spectroscopy (fNIRS), functional magnetic resonance (fMRI), electroencephalography (EEG) and magnetoencephalography (MEG). Overall, the review identified a total of 27 different methods used to compute IBC. The most common hyperscanning modality is fNIRS, used by 119 studies, 89 of which adopted wavelet coherence. Based on the results of this literature survey, we first report summary statistics of the hyperscanning field, followed by a brief overview of each signal that is obtained from each neuroimaging modality used in hyperscanning. We then discuss the rationale, assumptions and suitability of each method to different modalities which can be used to investigate IBC. Finally, we discuss issues surrounding the interpretation of each method.
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Affiliation(s)
- U Hakim
- Department of Medical Physics and Biomedical Engineering, University College London, Malet Place Engineering Building, Gower Street, London WC1E 6BT, United Kingdom.
| | - S De Felice
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom; Department of Psychology, University of Cambridge, United Kingdom
| | - P Pinti
- Department of Medical Physics and Biomedical Engineering, University College London, Malet Place Engineering Building, Gower Street, London WC1E 6BT, United Kingdom; Centre for Brain and Cognitive Development, Birkbeck, University of London, London, United Kingdom
| | - X Zhang
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States
| | - J A Noah
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States
| | - Y Ono
- Department of Electronics and Bioinformatics, School of Science and Technology, Meiji University, Kawasaki, Kanagawa, Japan
| | - P W Burgess
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
| | - A Hamilton
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
| | - J Hirsch
- Department of Medical Physics and Biomedical Engineering, University College London, Malet Place Engineering Building, Gower Street, London WC1E 6BT, United Kingdom; Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States; Departments of Neuroscience and Comparative Medicine, Yale School of Medicine, New Haven, CT, United States; Yale University, Wu Tsai Institute, New Haven, CT, United States
| | - I Tachtsidis
- Department of Medical Physics and Biomedical Engineering, University College London, Malet Place Engineering Building, Gower Street, London WC1E 6BT, United Kingdom
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Shao C, Zhang X, Wu Y, Zhang W, Sun B. Increased Interpersonal Brain Synchronization in Romantic Couples Is Associated with Higher Honesty: An fNIRS Hyperscanning Study. Brain Sci 2023; 13:brainsci13050833. [PMID: 37239304 DOI: 10.3390/brainsci13050833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/16/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023] Open
Abstract
Previous studies on the brain-brain interaction of deception have shown different patterns of interpersonal brain synchronization (IBS) between different genders. However, the brain-brain mechanisms in the cross-sex composition need to be better understood. Furthermore, there needs to be more discussion about how relationships (e.g., romantic couples vs. strangers) affect the brain-brain mechanism under interactive deception. To elaborate on these issues, we used the functional near-infrared spectroscopy (fNIRS)-based hyperscanning approach to simultaneously measure interpersonal brain synchronization (IBS) in romantic couples (heterosexual) and cross-sex stranger dyads during the sender-receiver game. The behavioral results found that the deception rate of males was lower than that of females, and romantic couples were deceived less than strangers. Significantly increased IBS was observed in the frontopolar cortex (FPC) and right temporoparietal junction (rTPJ) of the romantic couple group. Moreover, the IBS is negatively correlated with the deception rate. No significantly increased IBS was observed in cross-sex stranger dyads. The result corroborated the lower deception of males and romantic couples in cross-sex interactions. Furthermore, IBS in the PFC and rTPJ was the underlying dual-brain neural basis for supporting honesty in romantic couples.
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Affiliation(s)
- Chong Shao
- School of Psychology, Zhejiang Normal University, Jinhua 321004, China
| | - Xuecheng Zhang
- School of Psychology, Zhejiang Normal University, Jinhua 321004, China
| | - You Wu
- School of Psychology, Zhejiang Normal University, Jinhua 321004, China
| | - Wenhai Zhang
- School of Psychology, Zhejiang Normal University, Jinhua 321004, China
- Big Data Center for Educational Neuroscience and Artificial Intelligence, Hengyang Normal University, Hengyang 421001, China
| | - Binghai Sun
- School of Psychology, Zhejiang Normal University, Jinhua 321004, China
- Key Laboratory of Intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua 321004, China
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5
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Balters S, Miller JG, Li R, Hawthorne G, Reiss AL. Virtual (Zoom) Interactions Alter Conversational Behavior and Interbrain Coherence. J Neurosci 2023; 43:2568-2578. [PMID: 36868852 PMCID: PMC10082458 DOI: 10.1523/jneurosci.1401-22.2023] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 03/05/2023] Open
Abstract
A growing number of social interactions are taking place virtually on videoconferencing platforms. Here, we explore potential effects of virtual interactions on observed behavior, subjective experience, and neural "single-brain" and "interbrain" activity via functional near-infrared spectroscopy neuroimaging. We scanned a total of 36 human dyads (72 participants, 36 males, 36 females) who engaged in three naturalistic tasks (i.e., problem-solving, creative-innovation, socio-emotional task) in either an in-person or virtual (Zoom) condition. We also coded cooperative behavior from audio recordings. We observed reduced conversational turn-taking behavior during the virtual condition. Given that conversational turn-taking was associated with other metrics of positive social interaction (e.g., subjective cooperation and task performance), this measure may be an indicator of prosocial interaction. In addition, we observed altered patterns of averaged and dynamic interbrain coherence in virtual interactions. Interbrain coherence patterns that were characteristic of the virtual condition were associated with reduced conversational turn-taking. These insights can inform the design and engineering of the next generation of videoconferencing technology.SIGNIFICANCE STATEMENT Videoconferencing has become an integral part of our lives. Whether this technology impacts behavior and neurobiology is not well understood. We explored potential effects of virtual interaction on social behavior, brain activity, and interbrain coupling. We found that virtual interactions were characterized by patterns of interbrain coupling that were negatively implicated in cooperation. Our findings are consistent with the perspective that videoconferencing technology adversely affects individuals and dyads during social interaction. As virtual interactions become even more necessary, improving the design of videoconferencing technology will be crucial for supporting effective communication.
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Affiliation(s)
- Stephanie Balters
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California 94305
| | - Jonas G Miller
- Department of Psychology, Stanford University, Stanford, California 94305
| | - Rihui Li
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California 94305
| | - Grace Hawthorne
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305
| | - Allan L Reiss
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California 94305
- Department of Pediatrics, Stanford University, Stanford, California 94305
- Department of Radiology, Stanford University, Stanford, California 94305
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Cheng X, Guo B, Hu Y. Distinct neural couplings to shared goal and action coordination in joint action: evidence based on fNIRS hyperscanning. Soc Cogn Affect Neurosci 2022; 17:956-964. [PMID: 35325237 PMCID: PMC9527463 DOI: 10.1093/scan/nsac022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 01/19/2022] [Accepted: 03/23/2022] [Indexed: 11/15/2022] Open
Abstract
Joint action is central to human nature, enabling individuals to coordinate in time and space to achieve a joint outcome. Such interaction typically involves two key elements: shared goal and action coordination. Yet, the substrates entrained to these two components in joint action remained unclear. In the current study, dyads performed two tasks involving both sharing goal and action coordination, i.e. complementary joint action and imitative joint action, a task only involving shared goal and a task only involving action coordination, while their brain activities were recorded by the functional near-infrared spectroscopy hyperscanning technique. The results showed that both complementary and imitative joint action (i.e. involving shared goal and action coordination) elicited better behavioral performance than the task only involving shared goal/action coordination. We observed that the interbrain synchronization (IBS) at the right inferior frontal cortex (IFC) entrained more to shared goal, while left-IFC IBS entrained more to action coordination. We also observed that the right-IFC IBS was greater during completing a complementary action than an imitative action. Our results suggest that IFC plays an important role in joint action, with distinct lateralization for the sub-components of joint action.
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Affiliation(s)
- Xiaojun Cheng
- School of Psychology, Shenzhen University, Shenzhen 518060, China
| | - Bing Guo
- School of Psychology, Shenzhen University, Shenzhen 518060, China
| | - Yinying Hu
- Institute of Brain and Education Innovation, East China Normal University, Shanghai 200062, China
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7
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Hu Y, Zhu M, Liu Y, Wang Z, Cheng X, Pan Y, Hu Y. Musical Meter Induces Interbrain Synchronization during Interpersonal Coordination. eNeuro 2022; 9:ENEURO.0504-21.2022. [PMID: 36280287 PMCID: PMC9616439 DOI: 10.1523/eneuro.0504-21.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 12/15/2022] Open
Abstract
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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Affiliation(s)
- Yinying Hu
- Shanghai Key Laboratory of Mental Health and Crisis Intervention, School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
| | - Min Zhu
- College of Emergency Management, Nanjing Tech University, Nanjing 211816, China
| | - Yang Liu
- Shanghai Key Laboratory of Mental Health and Crisis Intervention, School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
| | - Zixuan Wang
- Shanghai Key Laboratory of Mental Health and Crisis Intervention, School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
| | - Xiaojun Cheng
- School of Psychology, Shenzhen University, Shenzhen 518060, China
| | - Yafeng Pan
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi Hu
- Shanghai Key Laboratory of Mental Health and Crisis Intervention, School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
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8
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Liang Z, Li S, Zhou S, Chen S, Li Y, Chen Y, Zhao Q, Huang F, Lu C, Yu Q, Zhou Z. Increased or decreased? Interpersonal neural synchronization in group creation. Neuroimage 2022; 260:119448. [PMID: 35843516 DOI: 10.1016/j.neuroimage.2022.119448] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 07/01/2022] [Accepted: 07/03/2022] [Indexed: 10/17/2022] Open
Abstract
Group creation is the process by which group members collaborate to produce novel and useful ideas or products, including ideas generation and evaluation. However, the interpersonal neural mechanism of group creation during natural communication remains unclear. In this study, two groups of same-sex dyads with similar individual creativity collaborated to complete the Product Improvement Task (creative condition) and the Item Purchase Plan Task (control condition), respectively. Functional near-infrared spectroscopy (fNIRS) was used to record both members' neural activity in the left prefrontal (lPFC) and right temporal-parietal junction (rTPJ) regions during the task. Considering that the role asymmetry of group members may have an impact on interpersonal neural patterns, we identified leaders and followers in the dyads based on participant performance. The results showed that leaders and followers in the creative condition had significantly lower interpersonal neural synchronization (INS) in the right superior temporal gyrus-left superior frontal gyrus, right supramarginal gyrus-left superior frontal gyrus, and right supramarginal gyrus-left middle frontal gyrus than in the control condition. Partial multivariate Granger causality analyses revealed the influence between dyads was bidirectional but was significantly stronger from the leaders to the followers than the other direction. In addition, in the creative task, the INS was significantly associated with novelty, appropriateness, and conflict of views. All these findings suggest that the ideas generation and ideas evaluation process in group creation have poor interpersonal neural activity coupling due to factors such as the difficulty of understanding novel ideas. However, performances may be improved when groups can better integrate views and reach collective understanding, intentions, and goals. Furthermore, we found that there are differences in the dynamics of INS in different brain regions. The INS related to the novelty of the group creation decreased in the early stages, while the INS related to the appropriateness decreased in the middle stages. Our findings reveal a unique interpersonal neural pattern of group creation processes in the context of natural communication.
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Affiliation(s)
- Zheng Liang
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China
| | - Songqing Li
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China; College of Electronic Engineering, Naval University of Engineering, Wuhan, China
| | - Siyuan Zhou
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Shi Chen
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China
| | - Ying Li
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China; School of Preschool Education, Changsha Normal University, Changsha, China
| | - Yanran Chen
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China
| | - Qingbai Zhao
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China.
| | - Furong Huang
- School of Psychology, Jiangxi Normal University, Nanchang, China.
| | - Chunming Lu
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Quanlei Yu
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China.
| | - Zhijin Zhou
- Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, Central China Normal University, Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, School of Psychology, Central China Normal University, Wuhan, China.
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Wikström V, Saarikivi K, Falcon M, Makkonen T, Martikainen S, Putkinen V, Cowley BU, Tervaniemi M. Inter-brain synchronization occurs without physical co-presence during cooperative online gaming. Neuropsychologia 2022; 174:108316. [PMID: 35810882 DOI: 10.1016/j.neuropsychologia.2022.108316] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 07/01/2022] [Accepted: 07/02/2022] [Indexed: 11/25/2022]
Abstract
Inter-brain synchronization during social interaction has been linked with several positive phenomena, including closeness, cooperation, prosociality, and team performance. However, the temporal dynamics of inter-brain synchronization during collaboration are not yet fully understood. Furthermore, with collaboration increasingly happening online, the dependence of inter-brain phase synchronization of oscillatory activity on physical presence is an important but understudied question. In this study, physically isolated participants performed a collaborative coordination task in the form of a cooperative multiplayer game. We measured EEG from 42 subjects working together as pairs in the task. During the measurement, the only interaction between the participants happened through on-screen movement of a racing car, controlled by button presses of both participants working with distinct roles, either controlling the speed or the direction of the car. Pairs working together in the task were found to have elevated neural coupling in the alpha, beta, and gamma frequency bands, compared to performance matched false pairs. Higher gamma synchrony was associated with better momentary performance within dyads and higher alpha synchrony was associated with better mean performance across dyads. These results are in line with previous findings of increased inter-brain synchrony during interaction, and show that phase synchronization of oscillatory activity occurs during online real-time joint coordination without any physical co-presence or video and audio connection. Synchrony decreased during a playing session, but was found to be higher during the second session compared to the first. The novel paradigm, developed for the measurement of real-time collaborative performance, demonstrates that changes in inter-brain EEG phase synchrony can be observed continuously during interaction.
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Affiliation(s)
- Valtteri Wikström
- Cognitive Brain Research Unit, Faculty of Medicine, University of Helsinki, P.O. Box 21, Helsinki, 00014, Finland; Department of Education, Faculty of Educational Sciences, University of Helsinki, P.O. Box 9, Helsinki, 00014, Finland.
| | - Katri Saarikivi
- Cognitive Brain Research Unit, Faculty of Medicine, University of Helsinki, P.O. Box 21, Helsinki, 00014, Finland; Department of Education, Faculty of Educational Sciences, University of Helsinki, P.O. Box 9, Helsinki, 00014, Finland
| | - Mari Falcon
- Cognitive Brain Research Unit, Faculty of Medicine, University of Helsinki, P.O. Box 21, Helsinki, 00014, Finland; Department of Education, Faculty of Educational Sciences, University of Helsinki, P.O. Box 9, Helsinki, 00014, Finland
| | - Tommi Makkonen
- Cognitive Brain Research Unit, Faculty of Medicine, University of Helsinki, P.O. Box 21, Helsinki, 00014, Finland
| | - Silja Martikainen
- Cognitive Brain Research Unit, Faculty of Medicine, University of Helsinki, P.O. Box 21, Helsinki, 00014, Finland; Department of Education, Faculty of Educational Sciences, University of Helsinki, P.O. Box 9, Helsinki, 00014, Finland
| | - Vesa Putkinen
- Turku PET Centre, University of Turku, P.O. Box 52, Turku, 20521, Finland; Turku University Hospital, P.O. Box 52, Turku, 20521, Finland
| | - Benjamin Ultan Cowley
- Department of Education, Faculty of Educational Sciences, University of Helsinki, P.O. Box 9, Helsinki, 00014, Finland; Cognitive Science, Department of Digital Humanities, Faculty of Arts, University of Helsinki, P.O. Box 24, Helsinki, 00014, Finland
| | - Mari Tervaniemi
- Cognitive Brain Research Unit, Faculty of Medicine, University of Helsinki, P.O. Box 21, Helsinki, 00014, Finland; Department of Education, Faculty of Educational Sciences, University of Helsinki, P.O. Box 9, Helsinki, 00014, Finland
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10
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Nazneen T, Islam IB, Sajal MSR, Jamal W, Amin MA, Vaidyanathan R, Chau T, Mamun KA. Recent Trends in Non-invasive Neural Recording Based Brain-to-Brain Synchrony Analysis on Multidisciplinary Human Interactions for Understanding Brain Dynamics: A Systematic Review. Front Comput Neurosci 2022; 16:875282. [PMID: 35782087 PMCID: PMC9245014 DOI: 10.3389/fncom.2022.875282] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/20/2022] [Indexed: 12/12/2022] Open
Abstract
The study of brain-to-brain synchrony has a burgeoning application in the brain-computer interface (BCI) research, offering valuable insights into the neural underpinnings of interacting human brains using numerous neural recording technologies. The area allows exploring the commonality of brain dynamics by evaluating the neural synchronization among a group of people performing a specified task. The growing number of publications on brain-to-brain synchrony inspired the authors to conduct a systematic review using the PRISMA protocol so that future researchers can get a comprehensive understanding of the paradigms, methodologies, translational algorithms, and challenges in the area of brain-to-brain synchrony research. This review has gone through a systematic search with a specified search string and selected some articles based on pre-specified eligibility criteria. The findings from the review revealed that most of the articles have followed the social psychology paradigm, while 36% of the selected studies have an application in cognitive neuroscience. The most applied approach to determine neural connectivity is a coherence measure utilizing phase-locking value (PLV) in the EEG studies, followed by wavelet transform coherence (WTC) in all of the fNIRS studies. While most of the experiments have control experiments as a part of their setup, a small number implemented algorithmic control, and only one study had interventional or a stimulus-induced control experiment to limit spurious synchronization. Hence, to the best of the authors' knowledge, this systematic review solely contributes to critically evaluating the scopes and technological advances of brain-to-brain synchrony to allow this discipline to produce more effective research outcomes in the remote future.
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Affiliation(s)
- Tahnia Nazneen
- Advanced Intelligent Multidisciplinary Systems Lab, Institute of Advanced Research, United International University, Dhaka, Bangladesh
| | - Iffath Binta Islam
- Advanced Intelligent Multidisciplinary Systems Lab, Institute of Advanced Research, United International University, Dhaka, Bangladesh
| | - Md. Sakibur Rahman Sajal
- Advanced Intelligent Multidisciplinary Systems Lab, Institute of Advanced Research, United International University, Dhaka, Bangladesh
- Department of Computer Science and Engineering, United International University, Dhaka, Bangladesh
| | | | - M. Ashraful Amin
- Department of Computer Science and Engineering, Independent University, Dhaka, Bangladesh
| | - Ravi Vaidyanathan
- Department of Mechanical Engineering, Imperial College London, London, United Kingdom
| | - Tom Chau
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Khondaker A. Mamun
- Advanced Intelligent Multidisciplinary Systems Lab, Institute of Advanced Research, United International University, Dhaka, Bangladesh
- Department of Computer Science and Engineering, United International University, Dhaka, Bangladesh
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11
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Zhou C, Cheng X, Liu C, Li P. Interpersonal coordination enhances brain-to-brain synchronization and influences responsibility attribution and reward allocation in social cooperation. Neuroimage 2022; 252:119028. [PMID: 35217208 DOI: 10.1016/j.neuroimage.2022.119028] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 01/12/2022] [Accepted: 02/21/2022] [Indexed: 11/22/2022] Open
Abstract
Fair distribution of resources matters to both individual interests and group harmony during social cooperation. Different allocation rules, including equity- and equality-based rules, have been widely discussed in reward allocation research; however, it remains unclear whether and how individuals' cooperative manner, such as interpersonal coordination, influence their subsequent responsibility attribution and reward allocation. Here, 46 dyads conducted a time estimation task-either synergistically (the coordination group) or solely (the control group)-while their brain activities were measured using a functional near-infrared spectroscopy hyperscanning approach. Dyads in the coordination group showed higher behavioral synchrony and higher interpersonal brain synchronization (IBS) in the dorsal lateral prefrontal cortex (DLPFC) during the time estimation task than those in the control group. They also showed a more egalitarian tendency of responsibility attribution for the task outcome. More importantly, dyads in the coordination group who had higher IBS in the dorsal medial prefrontal cortex (DMPFC) were more inclined to make egalitarian reward allocations, and this effect was mediated by responsibility attribution. Our findings elucidate the influence of interpersonal coordination on reward allocation and the critical role of the prefrontal cortex in these processes.
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Affiliation(s)
- Can Zhou
- School of Psychology, Shenzhen University, No 3688, Nanhai Road, Nanshan District, Shenzhen 518060, China
| | - Xiaojun Cheng
- School of Psychology, Shenzhen University, No 3688, Nanhai Road, Nanshan District, Shenzhen 518060, China
| | - Chengwei Liu
- School of Education, Hunan University of Science and Technology, Xiangtan, China
| | - Peng Li
- School of Psychology, Shenzhen University, No 3688, Nanhai Road, Nanshan District, Shenzhen 518060, China; Shenzhen Key Laboratory of Affective and Social Cognitive Science, Shenzhen University, Shenzhen, China.
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12
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Integration of social status and trust through interpersonal brain synchronization. Neuroimage 2021; 246:118777. [PMID: 34864151 DOI: 10.1016/j.neuroimage.2021.118777] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 11/20/2022] Open
Abstract
Trust can be a dynamic social process, during which the social identity of the interacting agents (e.g., an investor and a trustee) can bias trust outcomes. Here, we investigated how social status modulates trust and the neural mechanisms underlying this process. An investor and a trustee performed a 10-round repeated trust game while their brain activity was being simultaneously recorded using functional near-infrared spectroscopy. The social status (either high or low) of both investors and trustees was manipulated via a math competition task. The behavioral results showed that in the initial round, individuals invested more in low-status partners. However, the investment ratio increased faster as the number of rounds increased during trust interaction when individuals were paired with a high-status partner. This increasing trend was particularly prominent in the low (investor)-high (trustee) status group. Moreover, the low-high group showed increased investor-trustee brain synchronization in the right temporoparietal junction as the number of rounds increased, while brain activation in the right dorsolateral prefrontal cortex of the investor decreased as the number of rounds increased. Both interpersonal brain synchronization and brain activation predicted investment performance at the early stage; furthermore, two-brain data provided earlier predictions than did single-brain data. These effects were detectable in the investment phase in the low-high group only; no comparable effects were observed in the repayment phase or other groups. Overall, this study demonstrated a multi-brain mechanism for the integration of social status and trust.
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13
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Sun B, Xiao W, Lin S, Shao Y, Li W, Zhang W. Cooperation with partners of differing social experience: An fNIRS-based hyperscanning study. Brain Cogn 2021; 154:105803. [PMID: 34689103 DOI: 10.1016/j.bandc.2021.105803] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 09/18/2021] [Accepted: 09/20/2021] [Indexed: 11/19/2022]
Abstract
Previous studies have shown the brain synchronization of all team members while completing a collaborative task. Moreover, this effect is influenced by a team's compositional elements, such as gender (opposite or same) or relationships (i.e., friends, lovers, or strangers) among team members. However, whether interpersonal brain synchronization (IBS) is affected by team members' experience, as well as the temporal dynamics of such brain synchronization, remains to be investigated. In the current study, we combined behavioral methods and functional near-infrared spectroscopy-based hyperscanning to examine the effect of member experience on team cooperation by an adopted continuous joint drawing task with 21 student-student dyads (S-S dyads) and 22 teacher-student dyads (T-S dyads). The results revealed that team members with differing experiences (T-S dyads) perform better than those with similar ones (S-S dyads). Moreover, we observed IBS in the left frontopolar region (channel 11). However, we did not observe significant changes of the task-related IBS across time. Besides, IBS was negatively correlated with the participants' behavioral performance. Our findings demonstrate the importance of social experience in teamwork in the real world and suggest a possible mechanism for cooperation from a temporal and spatial perspective.
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Affiliation(s)
- Binghai Sun
- College of Teacher Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China; Research Center of Tin Ka Ping Moral Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China; Key Laboratory of Intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua, Zhejiang, China
| | - Weilong Xiao
- College of Teacher Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China; Research Center of Tin Ka Ping Moral Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China; Key Laboratory of Intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua, Zhejiang, China
| | - Shuwei Lin
- College of Teacher Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China; Research Center of Tin Ka Ping Moral Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Yuting Shao
- College of Teacher Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China; Research Center of Tin Ka Ping Moral Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Weijian Li
- College of Teacher Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China; Key Laboratory of Intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua, Zhejiang, China.
| | - Wenhai Zhang
- College of Teacher Education, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.
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14
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Balters S, Baker JM, Hawthorne G, Reiss AL. Capturing Human Interaction in the Virtual Age: A Perspective on the Future of fNIRS Hyperscanning. Front Hum Neurosci 2020; 14:588494. [PMID: 33240067 PMCID: PMC7669622 DOI: 10.3389/fnhum.2020.588494] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/02/2020] [Indexed: 01/09/2023] Open
Abstract
Advances in video conferencing capabilities combined with dramatic socio-dynamic shifts brought about by COVID-19, have redefined the ways in which humans interact in modern society. From business meetings to medical exams, or from classroom instruction to yoga class, virtual interfacing has permeated nearly every aspect of our daily lives. A seemingly endless stream of technological advances combined with our newfound reliance on virtual interfacing makes it likely that humans will continue to use this modern form of social interaction into the future. However, emergent evidence suggests that virtual interfacing may not be equivalent to face-to-face interactions. Ultimately, too little is currently understood about the mechanisms that underlie human interactions over the virtual divide, including how these mechanisms differ from traditional face-to-face interaction. Here, we propose functional near-infrared spectroscopy (fNIRS) hyperscanning-simultaneous measurement of two or more brains-as an optimal approach to quantify potential neurocognitive differences between virtual and in-person interactions. We argue that increased focus on this understudied domain will help elucidate the reasons why virtual conferencing doesn't always stack up to in-person meetings and will also serve to spur new technologies designed to improve the virtual interaction experience. On the basis of existing fNIRS hyperscanning literature, we highlight the current gaps in research regarding virtual interactions. Furthermore, we provide insight into current hurdles regarding fNIRS hyperscanning hardware and methodology that should be addressed in order to shed light on this newly critical element of everyday life.
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Affiliation(s)
- Stephanie Balters
- Department of Psychiatry and Behavioral Sciences, School of Medicine, Stanford University, Stanford, CA, United States
| | - Joseph M. Baker
- Department of Psychiatry and Behavioral Sciences, School of Medicine, Stanford University, Stanford, CA, United States
| | - Grace Hawthorne
- Hasso Plattner Institute of Design, Stanford University, Stanford, CA, United States
| | - Allan L. Reiss
- Department of Psychiatry and Behavioral Sciences, School of Medicine, Stanford University, Stanford, CA, United States
- Department of Radiology, School of Medicine, Stanford University, Stanford, CA, United States
- Department of Pediatrics, School of Medicine, Stanford University, Stanford, CA, United States
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15
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Li L, Wang H, Luo H, Zhang X, Zhang R, Li X. Interpersonal Neural Synchronization During Cooperative Behavior of Basketball Players: A fNIRS-Based Hyperscanning Study. Front Hum Neurosci 2020; 14:169. [PMID: 32733216 PMCID: PMC7358650 DOI: 10.3389/fnhum.2020.00169] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 04/20/2020] [Indexed: 11/25/2022] Open
Abstract
Accumulating evidence has consistently shown that team-based sports (such as basketball) are beneficial to interpersonal cooperation. However, its neural correlate remains to be discovered, especially in the perspective of two-person neuroscience. In this study, 12 dyads of basketball players and 12 dyads of college students who had no experience of team-based sports training were asked to perform joint-drawing task and control task. During task performance, neural activities were recorded in frontal area by the functional near-infrared spectroscopy (fNIRS)-based hyperscanning approach. The results demonstrated that dyads of basketball players were faster to finish joint-drawing task and showed higher subjective cooperativeness than dyads of college students. Meanwhile, significant interpersonal neural synchronization (INS) was observed in the dorsolateral prefrontal area only when pairs of basketball players performed joint-drawing task, but not control task. Therefore, we provide the first piece of inter-brain evidence for enhanced cooperative behavior in the individuals with team-based sports training, which could make us deeply understand exact neural correlate for experience-dependent changes of cognitions in humans.
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Affiliation(s)
- Lin Li
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China.,College of Physical Education and Health, East China Normal University, Shanghai, China
| | - Huiling Wang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China.,College of Physical Education and Health, East China Normal University, Shanghai, China
| | - Huiyu Luo
- Shanghai Yucai Junior High School, Shanghai, China
| | - Xiaoyou Zhang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China.,College of Physical Education and Health, East China Normal University, Shanghai, China
| | - Ruqian Zhang
- School of Psychology and Cognitive Science, Shanghai Changning-ECNU Mental Health Center, East China Normal University, Shanghai, China
| | - Xianchun Li
- School of Psychology and Cognitive Science, Shanghai Changning-ECNU Mental Health Center, East China Normal University, Shanghai, China
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16
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Pan Y, Cheng X. Two-Person Approaches to Studying Social Interaction in Psychiatry: Uses and Clinical Relevance. Front Psychiatry 2020; 11:301. [PMID: 32390881 PMCID: PMC7193689 DOI: 10.3389/fpsyt.2020.00301] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/26/2020] [Indexed: 12/20/2022] Open
Abstract
Social interaction is ubiquitous in human society. The two-person approach-a new, powerful tool to study information exchange and social behaviors-aims to characterize the behavioral dynamics and neural mechanisms of real-time social interactions. In this review, we discuss the benefits of two-person approaches compared to those for conventional, single-person approaches. We describe measures and paradigms that model social interaction in three dimensions (3-D), including eye-to-eye, body-to-body, and brain-to-brain relationships. We then discuss how these two-person measures and paradigms are used in psychiatric conditions (e.g., autism, mood disorders, schizophrenia, borderline personality disorder, and psychotherapy). Furthermore, the advantages of a two-person approach (e.g., dual brain stimulation, multi-person neurofeedback) in clinical interventions are described. Finally, we discuss the methodological and translational challenges surrounding the application of two-person approaches in psychiatry, as well as prospects for future two-/multi-person studies. We conclude that two-person approaches serve as useful additions to the range of behavioral and neuroscientific methods available to assess social interaction in psychiatric settings, for both diagnostic techniques and complementary interventions.
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Affiliation(s)
- Yafeng Pan
- School of Psychology, Shenzhen University, Shenzhen, China.,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Xiaojun Cheng
- School of Psychology, Shenzhen University, Shenzhen, China
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