The Influence And Promotion Of Joint Action Sense On Individual Collaboration Ability And Task Performanc

When performing a task jointly with others in daily activities,operators spontaneously integrate and represent the behaviors and tasks of others due to the expectation of a common goal.Common goals or intentions are the premise of joint action,establishing a common representation of self-other is the foundation of joint action,and motion prediction is the core of joint action.Investigating the sense of joint agency on subjects’ collaboration abilities and performance in joint tasks and exploring the neurophysiological mechanisms behind them using functional near-infrared spectroscopy(f NIRS)technology,and then improving performance through TMS intervention techniques in practical applications,to provides strong evidence for further understanding the factors influencing joint collaborative abilities and performance,and improving operational performance in practical applications.In this study,the joint Simon task was used to manipulate the sense of joint agency(So A)by setting the proportion of individuals predicted task response sequences.Experiment 1 adopted a twofactor mixed design of 2(So A: high,low)× 2(spatial consistency: consistent,inconsistent)to provide evidence for the So A on joint collaboration ability and performance.Experiment 2 repeated the task of Experiment 1,while employed f NIRS hyper scanning,using a three-factor mixed design of 2(So A:high,low)× 2(responds: go,no-go)× 2(spatial consistency: consistent,inconsistent)to explore the brain mechanisms by which So A affects collaboration ability and performance.The relationship between intra-brain activation with performance and inter-brain synchrony and collaboration ability and performance,respectively,was explored by Pearson correlation and moderation effect tests.The relationship between intra-brain activation,inter-brain synchrony and behavioral performance was explored by Pearson correlation and moderating effect tests.Experiment 3 repeated the experimental task of Experiment 2,based on the results of the neural mechanisms revealed in Experiment 2,using the TMS technique to stimulate the cerebral cortex of paired subjects.A two-factor mixed design of 3(stimulus type: high(no stimulation),low(true stimulus),low(pseudo stimulation))× 2(consistency:consistent,inconsistent)was adopted to promote the collaboration ability and performance.The results of Experiment 1 prove that So A do have an impact on joint action and performance.The joint Simon effect(JSE)of the high So A group is significantly greater than that of the low So A group,and the performance of response time(RT)is also better.The behavioral data of Experiment 2are similar to the results of Experiment 1.On this basis,the brain activation results of experiment 2found that the left dorsolateral prefrontal lobe(CH24)and the right inferior parietal lobule(CH33)showed significantly greater brain activation in inconsistent trials than in consistent trials.In the left posterior superior temporal sulcus(CH2)of the brain,the brain activation of the no-go trial in the high So A group was significantly greater than that in the low So A group.At the same time,the correlation between behavioral performance and intraral activation found that intracerebral activation values in the left posterior superior temporal sulcus(CH1,CH2)were significantly negatively correlated with RT.The results of inter-brain correlation showed that the inter-brain synchrony of the high So A group was significantly greater than that of the low So A group in bilateral inferior parietal lobules(CH9,CH33)and bilateral dorsolateral prefrontal lobes(CH21,CH47).Synchronization was significantly negatively correlated with RT.The moderation effect test found that in the right dorsolateral prefrontal lobe(CH47)only in the high So A group there was a positive predictive effect of interbrain correlation on the combined Simon effect.Behavioral performance was significantly correlated with the interbrain synchrony,and the better the interbrain synchrony,the better both behavioral performance and corepresentation ability.Based on the behavioral and cerebral neurological results described above,the results of experiment 3 found that the mean reaction time and JSE of the low(true)group were not significantly different from those of the high(none)group.This indicated that stimulating DLPFC using TMS improved brain activation,which helped to improve the participants’ collaboration ability and performance,reaching same level as the high(none)group.The above results provide behavioral and neurophysiological evidence.Subjects with a high So A have better cooperation ability and performance.Most of the brain regions of DLPFC,IPL and p STS are involved in the process of joint So A affecting joint action.Under the condition of high application activity,the activation of theory of mind network was larger and the task performance was better.Moreover,the synchronization of the prediction and control functional areas was better,and the individual collaboration ability and task performance were higher.The greater the brain activation is,the lower performance of RT will get.Thus,at the applied level we can conclude that there is a significant performance improvement by stimulating DLPFC of the subjects with excitatory TMS.This result not only supports the inference of causality that DLPFC is involved in the process of So A affecting joint collaboration,but also provides a realistic basis for future interpersonal coordination and performance improvement in collaborative work.