Psychological distance is an abstract concept used to describe the intimacy and closeness of relationships between individuals in society,reflecting the similarity based on social variables or social networks.In social and even strategic interactions,it can be defined as the familiarity or intimacy between participants.Interpersonal coordination is the coordination(ie,synchronization)of two or more individuals in social interaction with each other’s attention,actions,feelings,and mental states to engage in various social activities in unison.Previous studies have found that interpersonal coordination can promote emotional sharing and social understanding between individuals,promote social cohesion,promote cooperation by strengthening social attachment between groups,and improve the ability to perform cooperative actions.On the other hand,does it mean that friends who have a closer emotional connection(closer psychological distance)also mean that there will be better performance in interpersonal coordination? Some researchers have found that an individual’s understanding of coordination tasks and familiarity with collaborators will significantly affect the performance of interpersonal coordination.The more familiar with the collaborator,the better the cooperation performance.Other studies believe that working with friends does not necessarily perform better than working with strangers.People just prefer to work with friends.These positive feelings may not translate into actual improvement in cooperative performance.Therefore,this research uses the functional near-infrared ultra-scanning technology with multiple advantages(non-invasive,portable,good temporal and spatial resolution,high ecological validity,etc.)to investigate the psychological distance between the collaborator and the interpersonal relationship through two experiments.Cooperate with the performance of the impact,and explore the possible neural coupling mechanism between the brain.Experiment 1 used the synchronous response button task to investigate the influence of the psychological distance between collaborators on their cooperation performance and the inter-neural rain coupling mechanism.Experiment 2 used the etching sketch collaborative task to investigate the influence of the psychological distance on the performance of cooperation and whether the inter-brain neural coupling mechanism existing in it has cross-task stability under different collaborative tasks..Experiment 1 Cooperative task behavior results found that the group and time course of psychological distance have an interactive effect on the success rate of cooperation.As the key-press task progresses,the close psychological distance group(friends)and the long psychological distance group(strangers)cooperate The success rate was significantly increased,but the increase in the cooperation success rate of the long-distance group was significantly higher than that of the close-distance group.The data analysis of the inter-brain coherence of the cooperative task in Experiment 1 found that although there was no significant difference in the inter-brain coherence between the near psychological distance group and the far psychological distance group as a whole,the group and time course of the psychological distance had an effect on the dorsolateral prefrontal lobe.The inter-brain coherence has an interactive effect.With the progress of the keystroke task,the inter-brain coherence of the dorsolateral prefrontal lobe of the near psychological distance group remained basically stable,and the inter-brain coherence of the dorsolateral prefrontal lobe of the far psychological distance group increased significantly.In addition,the cooperation progress rate(the difference between the cooperation success rate of the front and back two blocks)of the long psychological distance group is positively correlated with the change trend of the inter-brain coherence of the dorsolateral prefrontal lobe.The results of the cooperative task in Experiment 1 showed that compared with the far-distance group,the near-psychological distance group showed higher inter-brain coherence in the initial stage of cooperation,and this difference will gradually level out over time;the far-distance group is in collaboration.There is a connection between the performance of cooperation in cooperation and the coherence of the brain,and the performance of cooperation and the coherence of the brain are significantly enhanced with the course of time.The behavioral results of the cooperative task in Experiment 2 found that the group and time course of psychological distance had an interactive effect on the performance of cooperation.The close psychological distance group had significantly higher cooperative performance in the initial stage of collaboration(block1 stage)than the far psychological distance group.There is no significant difference in the performance of the task in the late stage of collaboration(block2 stage).The data analysis of the inter-brain coherence of the cooperative task in Experiment 2 found that the interbrain synchronization of the dorsolateral prefrontal lobe among the members of the near psychological distance group was significantly higher than that of the far psychological distance group;in addition,the group and time course of the psychological distance are important for cooperation.The interbrain coherence of several channels in the dorsolateral prefrontal lobe has an interactive effect.With the progress of the collaborative task,the inter-brain coherence of the dorsolateral prefrontal lobe of the near psychological distance group remains basically stable,and the dorsolateral forehead of the far psychological distance group.The inter-brain coherence of the lobes was significantly improved;Experiment 2 also found that the cooperative performance of the distant psychological distance group in the early stage of cooperation was positively correlated with the inter-brain coherence of the dorsolateral prefrontal lobe.Experiment two cooperation tasks showed that in cooperation with higher requirements for collaboration,the close psychological distance group showed better cooperation performance and higher brain synchronization in the initial stage of cooperation,and this difference between groups will gradually increase over time.In general,the results indicate that the inter-brain synchrony of the dorsolateral prefrontal lobe of the brain may be the neural basis for interpersonal coordination.People with close psychological distance will have better cooperation performance and higher inter-brain synchronization in the early stage of cooperation.This difference caused by different psychological distances will gradually disappear with the progress of cooperation,which to a certain extent fits the nature of human relationship development,that is,cooperation with people who are close to each other will be more tacit,precisely because each other changes from strangeness to closeness.The result of “social coordination” that is constantly intertwined in the process. |