Social synchronisation of brain activity by eye-contact

Luft, Caroline Di Bernardi; Zioga, Ioanna; Giannopoulos, Anastasios E.; Bona, Gabriele Di; Civilini, Andrea; Latora, Vito; Mareschal, Isabelle

doi:10.21203/rs.3.rs-654192/v1

Cited by 2 publications

(4 citation statements)

References 78 publications

(125 reference statements)

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“…Consistent with research on adults, we found greater infant-adult neural synchrony during moments of mutual vs non-mutual gaze, measured using partially directed coherence (PDC-a spectral Granger causal measure of synchrony) in Theta (3-6Hz) and band activity. This study thus suggests that the impact of mutual gaze on inter-brain synchrony found in adult-adult dyads (Kinreich et al, 2017;Luft et al, 2021) is already present early on in development, though possibly in lower frequency brain rhythms.…”

Section: Mutual Gaze and Inter-brain Synchronymentioning

confidence: 58%

“…Higher interpersonal gamma correlations were also associated more strongly with mutual vs non-mutual gaze. Similarly, Luft and colleagues (2021) found that mutual gaze was associated with higher inter-brain gamma band (30-45Hz) coherence (a spectral measure based on correlation) between interacting adults than non-mutual gaze. In the developmental literature, our group investigated inter-brain synchrony in 7.5-month infant-adult dyads during moments of mutual and non-mutual gaze (Leong et al, 2017).…”

Section: Introductionmentioning

confidence: 88%

See 1 more Smart Citation

Gaze onsets during naturalistic infant-caregiver interaction associate with ‘sender’ but not ‘receiver’ neural responses, and do not lead to changes in inter-brain synchrony

Haresign

Phillips

Whitehorn

et al. 2022

Preprint

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Temporal coordination during infant-caregiver social interaction is thought to be crucial for supporting early language acquisition and cognitive development. Despite a growing prevalence of theories suggesting that increased inter-brain synchrony associates with many key aspects of social interactions such as mutual gaze, little is known about how this arises during development. Here, we investigated the role of mutual gaze onsets as a potential driver of inter-brain synchrony. We extracted dual EEG activity around naturally occurring gaze onsets during infant-caregiver social interactions in N=55 dyads (mean age 12 months). We differentiated between two types of gaze onset, depending on each partners’ role. ‘Sender’ gaze onsets were defined at a time when either the adult or the infant made a gaze shift towards their partner at a time when their partner was either already looking at them (mutual) or not looking at them (non-mutual). ‘Receiver’ gaze onsets were defined at a time when their partner made a gaze shift towards them at a time when either the adult or the infant was already looking at their partner (mutual) or not (non-mutual). Contrary to our hypothesis we found that, during a naturalistic interaction, both mutual and non-mutual gaze onsets were associated with changes in the sender, but not the receiver’s brain activity and were not associated with increases in inter-brain synchrony above baseline. Further, we found that mutual, compared to non-mutual gaze onsets were not associated with increased inter brain synchrony. Overall, our results suggest that the effects of mutual gaze are strongest at the intra-brain level, in the ‘sender’ but not the ‘receiver’ of the mutual gaze.

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Section: Mutual Gaze and Inter-brain Synchronymentioning

confidence: 58%

Section: Introductionmentioning

confidence: 88%

Gaze onsets during naturalistic infant-caregiver interaction associate with ‘sender’ but not ‘receiver’ neural responses, and do not lead to changes in inter-brain synchrony

Haresign

Phillips

Whitehorn

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Consistent with research on adults, we found greater infant-adult neural synchrony during moments of mutual versus non-mutual gaze, measured using partially directed coherence (PDC-a spectral Granger causal measure of synchrony) in Theta (3)(4)(5)(6) and Alpha (6-9 Hz) band activity. This study thus suggests that the impact of mutual gaze on inter-brain synchrony found in adult-adult dyads 33,34 is already present early on in development, though possibly in lower frequency brain rhythms. Additionally, associations between mutual gaze and adult-infant inter-brain synchrony have been found using fNIRS 36 .…”

mentioning

confidence: 59%

“…Higher interpersonal gamma correlations were also associated more strongly with mutual versus non-mutual gaze. Similarly, Luft and colleagues 34 found that mutual gaze was associated with higher inter-brain gamma band (30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45) coherence (a spectral measure based on correlation) between interacting adults than non-mutual gaze. In the developmental literature, our group investigated inter-brain synchrony in 7.5-month infant-adult dyads during moments of mutual and non-mutual gaze 35 .…”

mentioning

confidence: 92%

Gaze onsets during naturalistic infant-caregiver interaction associate with ‘sender’ but not ‘receiver’ neural responses, and do not lead to changes in inter-brain synchrony

Haresign

Phillips

Whitehorn

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Temporal coordination during infant-caregiver social interaction is thought to be crucial for supporting early language acquisition and cognitive development. Despite a growing prevalence of theories suggesting that increased inter-brain synchrony associates with many key aspects of social interactions such as mutual gaze, little is known about how this arises during development. Here, we investigated the role of mutual gaze onsets as a potential driver of inter-brain synchrony. We extracted dual EEG activity around naturally occurring gaze onsets during infant-caregiver social interactions in N = 55 dyads (mean age 12 months). We differentiated between two types of gaze onset, depending on each partners’ role. ‘Sender’ gaze onsets were defined at a time when either the adult or the infant made a gaze shift towards their partner at a time when their partner was either already looking at them (mutual) or not looking at them (non-mutual). ‘Receiver’ gaze onsets were defined at a time when their partner made a gaze shift towards them at a time when either the adult or the infant was already looking at their partner (mutual) or not (non-mutual). Contrary to our hypothesis we found that, during a naturalistic interaction, both mutual and non-mutual gaze onsets were associated with changes in the sender, but not the receiver’s brain activity and were not associated with increases in inter-brain synchrony above baseline. Further, we found that mutual, compared to non-mutual gaze onsets were not associated with increased inter brain synchrony. Overall, our results suggest that the effects of mutual gaze are strongest at the intra-brain level, in the ‘sender’ but not the ‘receiver’ of the mutual gaze.

show abstract

Social synchronisation of brain activity by eye-contact

Cited by 2 publications

References 78 publications

Gaze onsets during naturalistic infant-caregiver interaction associate with ‘sender’ but not ‘receiver’ neural responses, and do not lead to changes in inter-brain synchrony

Gaze onsets during naturalistic infant-caregiver interaction associate with ‘sender’ but not ‘receiver’ neural responses, and do not lead to changes in inter-brain synchrony

Gaze onsets during naturalistic infant-caregiver interaction associate with ‘sender’ but not ‘receiver’ neural responses, and do not lead to changes in inter-brain synchrony

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