Interbrain Synchrony of Team Collaborative Decision-Making: An fNIRS Hyperscanning Study

In many situations, decision-making behaviors are mostly composed of team patterns (i.e., more than two persons). However, brain-based models that inform how team interactions contribute and impact team collaborative decision-making (TCDM) behavior, is lacking. To examine the neural substrates activated during TCDM in realistic, interpersonal interaction contexts, dyads were asked to model TCDM toward their opponent, in a multi-person prisoner’s dilemma game, while neural activity was measured using functional near infrared spectroscopy. These experiments resulted in two main findings. First, there are different neural substrates between TCDM and ISDM, which were modulated by social environmental cues. i.e., the low incentive reward yielded higher activation within the left inferior frontal gyrus (IFG), in individual separately decision-making (ISDM) stage while the dorsolateral prefrontal cortex (DLPFC) and the middle frontopolar area was activated in TCDM stage. The high incentive reward evoked a higher interbrain synchrony (IBS) value in the right IFG in TCDM stage. Second, males showed higher activation in the DLPFC and the middle frontopolar area during ISDM, while females evoked higher IBS in the right IFG during TCDM. These sex effects suggest that in individual social dilemma situations, males and females may separately depend on non-social and social cognitive ability to make decisions, while in the social interaction situations of TCDM, females may depend on both social and non-social cognitive abilities. This study provide a compelling basis and interesting perspective for future neuroscience work of TCDM behaviors.

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Characteristics of executive control network function based on a lateralized version of the ANT-R test in athletes from open skill sports: An fNIRS study

10.1101/540500 ◽

2019 ◽

Author(s):

Miao Yu ◽

Yi B. Liu ◽

Guang Yang

Keyword(s):

Executive Control ◽

Near Infrared ◽

Inferior Frontal Gyrus ◽

Control Network ◽

Functional Near Infrared Spectroscopy ◽

Executive Control Network ◽

Network Function ◽

Frontoparietal Network ◽

The Right ◽

Flanker Interference

AbstractThe purpose of the study was to investigate the executive control network function characteristics of interceptive and strategic sports athletes from open skill sports. In order to do so, we used a revised lateralized attention network task to measure executive control efficiency and activation related to flanker interference changes on the right frontoparietal network using functional near-infrared spectroscopy in athletes from different sport sub-categories. Strategic athletes had higher accuracy and lower flanker conflict effects on accuracy, as well as longer reaction time and stronger conflict effects under the valid cue and invalid cue conditions. This was accompanied by higher activity in the right inferior frontal gyrus. These results extend the evidence suggesting that differences among interceptive sports and strategic sports athletes are due to the former using higher velocities to solve conflicts, and the latter using higher accuracy in the same tasks. These effects are attributed to differences in the right frontoparietal network.

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Subdividing Stress Groups into Eustress and Distress Groups Using Laterality Index Calculated from Brain Hemodynamic Response

Biosensors ◽

10.3390/bios12010033 ◽

2022 ◽

Vol 12 (1) ◽

pp. 33

Author(s):

SuJin Bak ◽

Jaeyoung Shin ◽

Jichai Jeong

Keyword(s):

Cognitive Abilities ◽

Near Infrared ◽

Brain Activity ◽

High Stress ◽

Functional Near Infrared Spectroscopy ◽

Stress Group ◽

Stimulus Response ◽

Laterality Index ◽

Target Effect ◽

The Right

A stress group should be subdivided into eustress (low-stress) and distress (high-stress) groups to better evaluate personal cognitive abilities and mental/physical health. However, it is challenging because of the inconsistent pattern in brain activation. We aimed to ascertain the necessity of subdividing the stress groups. The stress group was screened by salivary alpha-amylase (sAA) and then, the brain’s hemodynamic reactions were measured by functional near-infrared spectroscopy (fNIRS) based on the near-infrared biosensor. We compared the two stress subgroups categorized by sAA using a newly designed emotional stimulus-response paradigm with an international affective picture system (IAPS) to enhance hemodynamic signals induced by the target effect. We calculated the laterality index for stress (LIS) from the measured signals to identify the dominantly activated cortex in both the subgroups. Both the stress groups exhibited brain activity in the right frontal cortex. Specifically, the eustress group exhibited the largest brain activity, whereas the distress group exhibited recessive brain activity, regardless of positive or negative stimuli. LIS values were larger in the order of the eustress, control, and distress groups; this indicates that the stress group can be divided into eustress and distress groups. We built a foundation for subdividing stress groups into eustress and distress groups using fNIRS.

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

Frontiers in Psychology ◽

10.3389/fpsyg.2020.542093 ◽

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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Trait Rumination and Social Anxiety Separately Predict Stress Induced Rumination and Hemodynamic Responses

10.21203/rs.3.rs-829143/v1 ◽

2021 ◽

Author(s):

Hendrik Laicher ◽

Isabell Int-Veen ◽

Florian Torka ◽

Agnes Kroczek ◽

Isabel Bihlmaier ◽

...

Keyword(s):

Social Anxiety ◽

Social Stress ◽

Near Infrared ◽

Stress Test ◽

Inferior Frontal Gyrus ◽

Trier Social Stress Test ◽

Functional Near Infrared Spectroscopy ◽

Behavioral Level ◽

Dorsolateral Prefrontal ◽

The Right

Abstract We aimed to investigate the stress-reactive rumination response to social stress and its association with social anxiety and trait rumination. From previous investigations we know that people with a certain vulnerability to rumination show increased stress-reactive rumination. However, up to date the possible influence of social anxiety to this relationship is still unclear. Therefore, we reanalyzed the data of two of our previous studies assessing healthy low and high trait ruminators and depressed patients performing the Trier Social Stress Test (TSST). We measured cortical oxygenation using functional Near-Infrared Spectroscopy (fNIRS) as well as different behavioral outcome measures (subjective stress levels, negative affect, state rumination). On a behavioral level, we found an influence of both, social anxiety and trait rumination, on state rumination, even when correcting for the other factor, respectively, implying two potentially independent factors of influence. On a neural level, we observed reduced activation in socially anxious subjects in the right inferior frontal gyrus (IFG), as well as time-dependent changes in the left IFG and in the right dorsolateral prefrontal cortex. Results indicate a specific role of social anxiety, at least on a behavioral level, and therefore implicate a crucial factor to be considered in the treatment of depression.

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Depression Affects Working Memory Performance: A Functional Near Infrared Spectroscopy (fNIRS) Study*

10.21203/rs.3.rs-1091665/v1 ◽

2021 ◽

Author(s):

Özge Vural ◽

Erol Yıldırım

Keyword(s):

Decision Making ◽

Neuropsychological Tests ◽

Near Infrared ◽

Memory Performance ◽

Healthy Individuals ◽

Psychomotor Speed ◽

Functional Near Infrared Spectroscopy ◽

Complex Disorder ◽

The Right ◽

Back Task

Abstract Depression is a complex disorder that can be caused by psychosocial and biological conditions and it not only effects mood disorders, but also cognitive functions such as memory, decision making, psychomotor speed and attention. As a result of the studies, some findings indicate that depressed individuals perform worse in neuropsychological tests than healthy individuals, while other studies indicate there is no difference between the two groups. According to neuroimaging studies on this subject, functional and anatomical differences were detected at the cortex and subcortical levels in the prefrontal lobe. This study is consisting of two parts, behavioral and neuroimaging using fNIRS. BDI was applied to the participants. The average age of the group with lower BDI score is 23,9±3,04; the average age of the higher group with higher BDI score is 22,2+2,28. A visuospatial 2-back task, which includes 4 different stimulus types with neutral, emotional, verbal, and non-verbal qualities, was applied to the participants. No significant differences were observed between the two groups in behavioral data. However, when fNIRS results were examined, it was found that the group with the high BDI scores showed more activation in the right PFC during the visuospatial 2-back task compared to the group with low BDI scores. Although the fNIRS results are consistent in the literature, behavioral findings support some of the findings in literature, while contradicting others. It is thought that the reason for this may be that participants are young, and the 2-back task is not difficult enough.

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