Sensory multi-brain stimulation enhances dyadic cooperative behavior

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dc.article.numbernsaf104
dc.catalogadoraba
dc.contributor.authorLeiva Cisterna, Ivo
dc.contributor.authorBarraza, Paulo
dc.contributor.authorRodríguez B., Eugenio
dc.contributor.authorDumas, Guillaume
dc.date.accessioned2026-01-16T12:56:45Z
dc.date.available2026-01-16T12:56:45Z
dc.date.issued2025
dc.description.abstractHyperscanning research suggests that interbrain synchronization supports the regulation of social behavior. However, the evidence is predominantly correlational, leaving a gap for epiphenomenal accounts, where synchrony merely represents concurrent stimulus processing rather than a mechanism relevant to interpersonal interactions. Here, we demonstrate that interbrain synchrony causally drives cooperative success, as evidenced by non-invasive stimulation enhancing coupling and subsequently improving performance in a concurrent interdependent cooperation task. We applied dual-sensory entrainment at 16 Hz and 40 Hz to dyads and compared their performance with non-entrained control dyads performing the same cooperation task. We found that dual stimulation improved interbrain synchrony at the targeted frequencies relative to controls, with 16 Hz entrainment producing the most prominent effect. Strikingly, sensory entrainment facilitated sustained behavioral coupling, allowing partners to maintain coordination over extended periods. Notably, these effects are contingent on improved response coordination, indicating the importance of interbrain coupling for facilitating coordination and demonstrating causally that partner neural attunement is necessary to produce effective joint behavior. Thus, our study supports the concept that interbrain synchrony represents a neural mechanism with functional specificity in social interactions.
dc.description.funderANID-Doctoral; Folio: 21202583
dc.description.funderPIA-CONICYT Basal Funds for Centers of Excellence; Folio: FB0003
dc.description.funderANID/Support 2024; Folio: AFB240004
dc.description.funderFONDEQUIP; Folio: 150003
dc.description.funderInstitute for Data Valorization, Montreal; Folio: IVADO; CF00137433
dc.description.funderFonds de recherche du Québec; Folio: FRQ; 285289
dc.description.funderNatural Sciences and Engineering Research Council of Canada; Folio: NSERC; DGECR-2023-00089
dc.description.funderCanadian Institute for Health Research; Folio: CIHR 192031; SCALE
dc.description.funderAzrieli Global Scholars Fellowship from the Canadian Institute for Advanced Research (CIFAR)-Brain, Mind & Consciousness program
dc.fechaingreso.objetodigital2026-01-16
dc.format.extent9 páginas
dc.identifier.doi10.1093/scan/nsaf104
dc.identifier.eissn1749-5024
dc.identifier.issn1749-5016
dc.identifier.scopusid105022416323
dc.identifier.urihttps://doi.org/10.1093/scan/nsaf104
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107718
dc.identifier.wosidWOS:001617790300001
dc.information.autorucEscuela de Medicina; Leiva Cisterna, Ivo; S/I; 1132069
dc.information.autorucEscuela de Psicología; Rodríguez B., Eugenio; S/I; 65567
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido completo
dc.relation.urihttps://repositorio.uc.cl/handle/11534/107727
dc.revistaSocial Cognitive and Affective Neuroscience
dc.rightsacceso abierto
dc.rights.licenseAttribution-NonCommercial 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectInterbrain synchrony
dc.subjectSensory entrainment
dc.subjectCausality
dc.subjectCooperation
dc.subjectHyperscanning
dc.subject.ddc150
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleSensory multi-brain stimulation enhances dyadic cooperative behavior
dc.typeartículo
dc.volumen20
sipa.codpersvinculados1132069
sipa.codpersvinculados65567
sipa.indexSCOPUS
sipa.indexWOS
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