Automatic measure of imitation during social interaction: A behavioral and hyperscanning-EEG benchmark

Delaherche, Emilie; Dumas, Guillaume; Nadel, Jacqueline; Chétouani, Mohamed

doi:10.1016/j.patrec.2014.09.002

Cited by 36 publications

(21 citation statements)

References 35 publications

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“…Increases in delta oscillations during individual EEG recordings have been observed during visual auditory stimuli detection tasks or high working memory load and have been related particularly to signal matching (Başar-Eroglu et al 1992), which is highly relevant in our task. Also, this pattern replicates earlier studies that reported most pronounced effects in fronto-central regions for both within-and between-brain synchronization (i.e., PLI and IPC) at lower frequencies, namely in delta and theta frequency ranges during social interaction (Lindenberger et al, 2009;Delaherche et al, 2015;Sänger et al, 2012). Moreover, Sänger et al (2012) found that within-brain synchronization (i.e., PLI and intra-brain strength) at lower frequencies was higher in leaders as compared to followers indicating modulation of intra-brain synchrony by musical roles, which may reflect that the role of the leader is associated with greater effort than the role of the follower.…”

Section: Discussionsupporting

confidence: 90%

Teams on the same wavelength perform better: Inter-brain phase synchronization constitutes a neural substrate for social facilitation

et al. 2017

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Working together feels easier with some people than with others. We asked participants to perform a visual search task either alone or with a partner while simultaneously measuring each participant's EEG. Local phase synchronization and inter-brain phase synchronization were generally higher when subjects jointly attended to a visual search task than when they attended to the same task individually. Some participants searched the visual display more efficiently and made faster decisions when working as a team, whereas other dyads did not benefit from working together. These inter-team differences in behavioral performance gain in the visual search task were reliably associated with inter-team differences in local and inter-brain phase synchronization. Our results suggest that phase synchronization constitutes a neural correlate of social facilitation, and may help to explain why some teams perform better than others.

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Section: Discussionsupporting

confidence: 90%

Teams on the same wavelength perform better: Inter-brain phase synchronization constitutes a neural substrate for social facilitation

et al. 2017

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“…Also using fNIRS, Jiang et al (2012) measured the brain activity of two individuals during naturalistic face-to-face communication, back-to-back dialogue or monologue, or face-to-face dialogue. Finally, Delaherche et al (2014) used EEG in two individuals to derive an automatic measure of imitation during social interaction, showing that EEG is also suitable for these ecological two-person paradigms.…”

Section: What Next?mentioning

confidence: 99%

Examining ecological validity in social interaction: problems of visual fidelity, gaze, and social potential

Reader

Holmes

2016

Cult. Brain

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Social interaction is an essential part of the human experience, and much work has been done to study it. However, several common approaches to examining social interactions in psychological research may inadvertently either unnaturally constrain the observed behaviour by causing it to deviate from naturalistic performance, or introduce unwanted sources of variance. In particular, these sources are the differences between naturalistic and experimental behaviour that occur from changes in visual fidelity (quality of the observed stimuli), gaze (whether it is controlled for in the stimuli), and social potential (potential for the stimuli to provide actual interaction). We expand on these possible sources of extraneous variance and why they may be important. We review the ways in which experimenters have developed novel designs to remove these sources of extraneous variance. New experimental designs using a ‘two-person’ approach are argued to be one of the most effective ways to develop more ecologically valid measures of social interaction, and we suggest that future work on social interaction should use these designs wherever possible.

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“…In addition to self‐movement, imitating a partner's hand movements was designed as a social interaction, and the phase synchronization between two subjects who played different roles (model and imitator) reflected a top–down modulation of the different roles [Dumas et al, ]. Furthermore, using spectral analysis, anatomical connectivity [Dumas et al, ] and oscillatory distinctions between the two different roles [Dumas et al, ; Delaherche et al, ] were observed in the same task.…”

Section: Introductionmentioning

confidence: 99%

Interbrain phase synchronization during turn‐taking verbal interaction—a hyperscanning study using simultaneous EEG/MEG

Ahn

Kwon

et al. 2017

Human Brain Mapping

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Recently, neurophysiological findings about social interaction have been investigated widely, and hardware has been developed that can measure multiple subjects' brain activities simultaneously. These hyperscanning studies have enabled us to discover new and important evidences of interbrain interactions. Yet, very little is known about verbal interaction without any visual input. Therefore, we conducted a new hyperscanning study based on verbal, interbrain turn-taking interaction using simultaneous EEG/MEG, which measures rapidly changing brain activities. To establish turn-taking verbal interactions between a pair of subjects, we set up two EEG/MEG systems (19 and 146 channels of EEG and MEG, respectively) located 100 miles apart. Subjects engaged in verbal communication via condenser microphones and magnetic-compatible earphones, and a network time protocol synchronized the two systems. Ten subjects participated in this experiment and performed verbal interaction and noninteraction tasks separately. We found significant oscillations in EEG alpha and MEG alpha/ gamma bands in several brain regions for all subjects. Furthermore, we estimated phase synchronization between two brains using the weighted phase lag index and found statistically significant

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Automatic measure of imitation during social interaction: A behavioral and hyperscanning-EEG benchmark

Cited by 36 publications

References 35 publications

Teams on the same wavelength perform better: Inter-brain phase synchronization constitutes a neural substrate for social facilitation

Teams on the same wavelength perform better: Inter-brain phase synchronization constitutes a neural substrate for social facilitation

Examining ecological validity in social interaction: problems of visual fidelity, gaze, and social potential

Interbrain phase synchronization during turn‐taking verbal interaction—a hyperscanning study using simultaneous EEG/MEG

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