scholarly journals Interpersonal brain synchronization during face-to-face economic exchange between acquainted dyads

2021 ◽  
Author(s):  
Yuto Kikuchi ◽  
Kensuke Tanioka ◽  
Tomoyuki Hiroyasu ◽  
Satoru Hiwa
Keyword(s):  
Near Infrared ◽  
Ultimatum Game ◽  
Cooperative Behavior ◽  
Social Activity ◽  
Economic Exchange ◽  
Functional Near Infrared Spectroscopy ◽  
Face To Face ◽  
The Face ◽  
Pair Analysis ◽  
Random Pair

Interpersonal brain synchronization (IBS) has been observed during social interactions and involves various factors, such as familiarity with the partner and type of social activity. A previous study has shown that face-to-face interactions in pairs of strangers increase IBS. However, it is unclear whether this can be observed when the nature of the interacting partners is different. Herein, we aimed to extend these findings to pairs of acquaintances. Neural activity in the frontal and temporal regions was recorded using functional near-infrared spectroscopy hyperscanning. Participants played an ultimatum game that required virtual economic exchange in two experimental settings: the face-to-face and face-blocked conditions. Random pair analysis confirmed whether IBS was induced by social interaction. Contrary to the aforementioned study, our results did not show any cooperative behavior or task-induced IBS increase. Conversely, the random pair analysis results revealed that the pair-specific IBS was significant only in the task condition at the left and right superior frontal, middle frontal, orbital superior frontal, right superior temporal, precentral, and postcentral gyri. Our results revealed that face-to-face interaction in acquainted pairs did not increase IBS and supported the idea that IBS is affected by "with whom we interact and how."

scholarly journals A Guide to Parent-Child fNIRS Hyperscanning Data Processing and Analysis

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4075
Author(s):  
Trinh Nguyen ◽  
Stefanie Hoehl ◽  
Pascal Vrtička
Keyword(s):  
Mixed Models ◽  
Near Infrared ◽  
Generalized Linear Mixed Models ◽  
Neural Synchrony ◽  
Functional Near Infrared Spectroscopy ◽  
Wavelet Transform Coherence ◽  
Pair Analysis ◽  
Random Pair ◽  
Problem Solving Task ◽  
Parent Child

The use of functional near-infrared spectroscopy (fNIRS) hyperscanning during naturalistic interactions in parent–child dyads has substantially advanced our understanding of the neurobiological underpinnings of human social interaction. However, despite the rise of developmental hyperscanning studies over the last years, analysis procedures have not yet been standardized and are often individually developed by each research team. This article offers a guide on parent–child fNIRS hyperscanning data analysis in MATLAB and R. We provide an example dataset of 20 dyads assessed during a cooperative versus individual problem-solving task, with brain signal acquired using 16 channels located over bilateral frontal and temporo-parietal areas. We use MATLAB toolboxes Homer2 and SPM for fNIRS to preprocess the acquired brain signal data and suggest a standardized procedure. Next, we calculate interpersonal neural synchrony between dyads using Wavelet Transform Coherence (WTC) and illustrate how to run a random pair analysis to control for spurious correlations in the signal. We then use RStudio to estimate Generalized Linear Mixed Models (GLMM) to account for the bounded distribution of coherence values for interpersonal neural synchrony analyses. With this guide, we hope to offer advice for future parent–child fNIRS hyperscanning investigations and to enhance replicability within the field.

scholarly journals A Guide to Parent-Child fNIRS Hyperscanning Data Analysis

2021 ◽  
Author(s):  
Trinh Nguyen ◽  
Stefanie Hoehl ◽  
Pascal Vrticka
Keyword(s):  
Data Analysis ◽  
Near Infrared ◽  
Brain Activity ◽  
Neural Synchrony ◽  
Functional Near Infrared Spectroscopy ◽  
Wavelet Transform Coherence ◽  
Pair Analysis ◽  
Random Pair ◽  
Problem Solving Task ◽  
Parent Child

The use of functional near-infrared spectroscopy (fNIRS) hyperscanning during naturalistic interactions in parent-child dyads has substantially advanced our understanding of the neurobiological underpinnings of human social interaction. However, despite the rise of developmental hyperscanning studies over the last years, analysis procedures have not yet been standardized and are often individually developed by each research team. This article offers a guide on parent-child fNIRS hyperscanning data analysis in MATLAB and R. We provide an exemplary dataset of 20 dyads assessed during a cooperative versus individual problem-solving task, with brain activity measured using 16 channels located over bilateral frontal and temporo-parietal areas. We use MATLAB toolboxes Homer2 and SPM for fNIRS to preprocess the acquired data, and suggest a standardized procedure previously employed in several publications. Next, we calculate interpersonal neural synchrony between dyads using Wavelet Transform Coherence (WTC) and illustrate how to run a random pair analysis to control for spurious correlations in the signal. We then use RStudio to estimate Generalized Linear Mixed Models (GLMM) to account for the bounded distribution of coherence values for interpersonal neural synchrony analyses. With this guide, we hope to offer advice for future parent-child fNIRS hyperscanning investigations and to enhance replicability within the field.

scholarly journals Interpersonal Synchrony Special Issue The role of anterior prefrontal cortex (area 10) in face-to-face deception measured with fNIRS

2020 ◽  
Author(s):  
Paola Pinti ◽  
Andrea Devoto ◽  
Isobel Greenhalgh ◽  
Ilias Tachtsidis ◽  
Paul W Burgess ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Near Infrared ◽  
Brain Activity ◽  
Lie Detection ◽  
Brain Activation ◽  
Functional Near Infrared Spectroscopy ◽  
Face To Face ◽  
Interpersonal Synchrony ◽  
Anterior Prefrontal Cortex

Abstract Anterior prefrontal cortex (PFC, Brodmann area 10) activations are often, but not always, found in neuroimaging studies investigating deception, and the precise role of this area remains unclear. To explore the role of the PFC in face-to-face deception, we invited pairs of participants to play a card game involving lying and lie detection while we used functional near infrared spectroscopy (fNIRS) to record brain activity in the PFC. Participants could win points for successfully lying about the value of their cards or for detecting lies. We contrasted patterns of brain activation when the participants either told the truth or lied, when they were either forced into this or did so voluntarily and when they either succeeded or failed to detect a lie. Activation in the anterior PFC was found in both lie production and detection, unrelated to reward. Analysis of cross-brain activation patterns between participants identified areas of the PFC where the lead player’s brain activity synchronized their partner’s later brain activity. These results suggest that during situations that involve close interpersonal interaction, the anterior PFC supports processing widely involved in deception, possibly relating to the demands of monitoring one’s own and other people’s behaviour.

scholarly journals Neural processes for live pro-social dialogue between dyads with socioeconomic disparity

2020 ◽  
Vol 15 (8) ◽  
pp. 875-887
Author(s):  
Olivia Descorbeth ◽  
Xian Zhang ◽  
J Adam Noah ◽  
Joy Hirsch
Keyword(s):  
Frontal Lobe ◽  
Near Infrared ◽  
Socioeconomic Disparity ◽  
Functional Near Infrared Spectroscopy ◽  
Dynamic Interactions ◽  
Left Frontal Lobe ◽  
Face To Face ◽  
Social Dialogue ◽  
Communication Paradigm ◽  
Neural Processes

Abstract An emerging theoretical framework suggests that neural functions associated with stereotyping and prejudice are associated with frontal lobe networks. Using a novel neuroimaging technique, functional near-infrared spectroscopy (fNIRS), during a face-to-face live communication paradigm, we explore an extension of this model to include live dynamic interactions. Neural activations were compared for dyads of similar and dissimilar socioeconomic backgrounds. The socioeconomic status of each participant was based on education and income levels. Both groups of dyads engaged in pro-social dialectic discourse during acquisition of hemodynamic signals. Post-scan questionnaires confirmed increased anxiety and effort for high-disparity dyads. Consistent with the frontal lobe hypothesis, left dorsolateral pre-frontal cortex (DLPFC), frontopolar area and pars triangularis were more active during speech dialogue in high than in low-disparity groups. Further, frontal lobe signals were more synchronous across brains for high- than low-disparity dyads. Convergence of these behavioral, neuroimaging and neural coupling findings associate left frontal lobe processes with natural pro-social dialogue under ‘out-group’ conditions and advance both theoretical and technical approaches for further investigation.

scholarly journals Interpersonal Agreement and Disagreement During Face-to-Face Dialogue: An fNIRS Investigation

2021 ◽  
Vol 14 ◽  
Author(s):  
Joy Hirsch ◽  
Mark Tiede ◽  
Xian Zhang ◽  
J. Adam Noah ◽  
Alexandre Salama-Manteau ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Near Infrared ◽  
A Priori ◽  
Superior Temporal Gyrus ◽  
Acoustic Energy ◽  
Angular Gyrus ◽  
Supramarginal Gyrus ◽  
Functional Near Infrared Spectroscopy ◽  
Face To Face ◽  
Increased Activity

Although the neural systems that underlie spoken language are well-known, how they adapt to evolving social cues during natural conversations remains an unanswered question. In this work we investigate the neural correlates of face-to-face conversations between two individuals using functional near infrared spectroscopy (fNIRS) and acoustical analyses of concurrent audio recordings. Nineteen pairs of healthy adults engaged in live discussions on two controversial topics where their opinions were either in agreement or disagreement. Participants were matched according to their a priori opinions on these topics as assessed by questionnaire. Acoustic measures of the recorded speech including the fundamental frequency range, median fundamental frequency, syllable rate, and acoustic energy were elevated during disagreement relative to agreement. Consistent with both the a priori opinion ratings and the acoustic findings, neural activity associated with long-range functional networks, rather than the canonical language areas, was also differentiated by the two conditions. Specifically, the frontoparietal system including bilateral dorsolateral prefrontal cortex, left supramarginal gyrus, angular gyrus, and superior temporal gyrus showed increased activity while talking during disagreement. In contrast, talking during agreement was characterized by increased activity in a social and attention network including right supramarginal gyrus, bilateral frontal eye-fields, and left frontopolar regions. Further, these social and visual attention networks were more synchronous across brains during agreement than disagreement. Rather than localized modulation of the canonical language system, these findings are most consistent with a model of distributed and adaptive language-related processes including cross-brain neural coupling that serves dynamic verbal exchanges.

scholarly journals Brain regions and functional interactions supporting early word recognition in the face of input variability

2017 ◽  
Vol 114 (29) ◽  
pp. 7588-7593 ◽  
Author(s):  
Silvia Benavides-Varela ◽  
Roma Siugzdaite ◽  
David Maximiliano Gómez ◽  
Francesco Macagno ◽  
Luigi Cattarossi ◽  
...  
Keyword(s):  
Near Infrared ◽  
Brain Regions ◽  
Test Phase ◽  
Frontal Region ◽  
Functional Near Infrared Spectroscopy ◽  
Functional Connections ◽  
The Face ◽  
The Right ◽  
Everyday Learning ◽  
Open Question

Perception and cognition in infants have been traditionally investigated using habituation paradigms, assuming that babies’ memories in laboratory contexts are best constructed after numerous repetitions of the very same stimulus in the absence of interference. A crucial, yet open, question regards how babies deal with stimuli experienced in a fashion similar to everyday learning situations—namely, in the presence of interfering stimuli. To address this question, we used functional near-infrared spectroscopy to test 40 healthy newborns on their ability to encode words presented in concomitance with other words. The results evidenced a habituation-like hemodynamic response during encoding in the left-frontal region, which was associated with a progressive decrement of the functional connections between this region and the left-temporal, right-temporal, and right-parietal regions. In a recognition test phase, a characteristic neural signature of recognition recruited first the right-frontal region and subsequently the right-parietal ones. Connections originating from the right-temporal regions to these areas emerged when newborns listened to the familiar word in the test phase. These findings suggest a neural specialization at birth characterized by the lateralization of memory functions: the interplay between temporal and left-frontal regions during encoding and between temporo-parietal and right-frontal regions during recognition of speech sounds. Most critically, the results show that newborns are capable of retaining the sound of specific words despite hearing other stimuli during encoding. Thus, habituation designs that include various items may be as effective for studying early memory as repeated presentation of a single word.

scholarly journals The neural correlates of the face attractiveness aftereffect: A functional near-infrared spectroscopy (fNIRS) study

NeuroImage ◽  
2014 ◽  
Vol 85 ◽  
pp. 363-371 ◽  
Author(s):  
Genyue Fu ◽  
Catherine J. Mondloch ◽  
Xiao Pan Ding ◽  
Lindsey A. Short ◽  
Liping Sun ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Neural Correlates ◽  
Functional Near Infrared Spectroscopy ◽  
The Face

scholarly journals Verbally mediated cooperation is consistently associated with inter-brain synchrony in frontal and temporoparietal areas: A mini-review and meta-analysis

2021 ◽  
Author(s):  
Artur Czeszumski ◽  
Sophie Hsin-Yi Liang ◽  
Suzanne Dikker ◽  
Peter König ◽  
Chin-Pang Lee ◽  
...  
Keyword(s):  
Selection Criteria ◽  
Near Infrared ◽  
Cooperative Behavior ◽  
Meta Analysis ◽  
Verbal Communication ◽  
Neural Basis ◽  
Functional Near Infrared Spectroscopy ◽  
Experimental Conditions ◽  
Cooperative Interactions ◽  
Meta Analyses

Cooperation, often supported through verbal communication, is vital to the survival of our species. Recent research has suggested that cooperative behavior is associated with synchronized neural activity between dyads in the frontal and temporo-parietal regions, consistent with findings from single-brain laboratory studies. However, these studies use a variety of cooperation tasks, raising the question whether the reported results can be reliably linked to truly dynamic, verbally supported cooperation. To establish which of these regions, if any, consistently track naturalistic cooperative behavior, we conducted a brief review and meta-analysis of published functional near-infrared spectroscopy (fNIRS) hyperscanning studies examining the occurrence of inter-brain synchrony during cooperative interactions as participants engaged in verbal communication. Nine articles (n=737 participants) met selection criteria and provided evidence of inter-brain synchrony during spoken communication while cooperating, with significantly large overall effect sizes for the full set of experimental conditions in both frontal and temporoparietal areas, suggesting that inter-brain neural synchronization in these regions underlies cooperative behavior in humans. Together, our findings underscore the importance of meta-analyses as a tool to help discern patterns across studies, in this case shedding light on the neural basis of semi-naturalistic cooperative behavior.

scholarly journals Interbrain Synchrony in the Expectation of Cooperation Behavior: A Hyperscanning Study Using Functional Near-Infrared Spectroscopy

2020 ◽  
Vol 11 ◽  
Author(s):  
Mingming Zhang ◽  
Huibin Jia ◽  
Mengxue Zheng
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Mirror Neuron System ◽  
Cooperative Behavior ◽  
Inferior Frontal Gyrus ◽  
Neural Substrates ◽  
Environmental Cues ◽  
Functional Near Infrared Spectroscopy ◽  
The Individual

Expectation of others’ cooperative behavior plays a core role in economic cooperation. However, the dynamic neural substrates of expectation of cooperation (hereafter EOC) are little understood. To fully understand EOC behavior in more natural social interactions, the present study employed functional near-infrared spectroscopy (fNIRS) hyperscanning to simultaneously measure pairs of participants’ brain activations in a modified prisoner’s dilemma game (PDG). The data analysis revealed the following results. Firstly, under the high incentive condition, team EOC behavior elicited higher interbrain synchrony (IBS) in the right inferior frontal gyrus (rIFG) than individual EOC behavior. Meanwhile, the IBS in the IFG could predict the relationship between empathy/agreeableness and EOC behavior, and this prediction role was modulated by social environmental cues. These results indicate the involvement of the human mirror neuron system (MNS) in the EOC behavior and the different neural substrates between team EOC and individual EOC, which also conform with theory that social behavior was affected by internal (i.e., empathy/agreeableness) and external factors (i.e., incentive). Secondly, female dyads exhibited a higher IBS value of cooperative expectation than male dyads in the team EOC than the individual EOC in the dorsal medial prefrontal cortex (DMPFC), while in the individual EOC stage, the coherence value of female dyads was significantly higher than that of male dyads under the low incentive reward condition in the rIFG. These sex effects thus provide presumptive evidence that females are more sensitive to environmental cues and also suggest that during economic social interaction, females’ EOC behavior depends on more social cognitive abilities. Overall, these results raise intriguing questions for future research on human cooperative behaviors.

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