Brain Synchronization Of Cooperative Behavior

Social interaction involves different levels of interpersonal cooperation.The typical manifestation of cooperative behavior is synchronous behavior,which is reflected in the behavioral consistency among individuals.Synchronous behavior requires monitoring self and other person behaviors,taking specific behaviors,and playing a central role in building and promoting social cohesion.Studies have shown that when two people develop cooperative behavior,their brain activities are coupled simultaneously,showing inter-brain synchronization.At present,there are two theories to explain synchronizing behavior in cooperation: shared intention theory holds that when individuals perform tasks that require synchronized behavior,they share the intent to achieve a common goal;perceptual similarity theory holds that synchronic behavior between individuals increases the interpersonal Perceived similarity promotes cooperation.According to the theory of sharing intentions,the incentives can promote the cooperation partners to determine the cooperation goals,and the synchronization behaviors are enhanced.According to the theory of perceptual similarity,motivation can only promote individual behavior,and it has little effect on perceptual similarity,and it is difficult to enhance the synchronized behavior between partners.In order to test the two theories,this study will use three experiments to explore the cognitive neural mechanism of cooperative behavior and the impact of motivation on cooperative behavior.Experiment one designs experiments on two theoretical contradictions,explores the brain mechanism of cooperation,and tests the two cooperation theories.Three gestures were selected as experimental materials.Consistent gestures indicate successful cooperation.The rules are simple and easy to understand.The cooperation can be quantified.The experimental task is raised from the level of perceptual movement to the level of thinking and decision-making.Analysis of behavioral data showed that similar tasks activated the dorsal lateral prefrontal lobe,and subjects under the cooperative task generated cooperative behavior,activated the dorsal lateral prefrontal lobe and the left subfrontal gyrus,but significant brain-to-brain correlations were detected only in the cooperative task..Based on this,Design Experiments 2 and 3 explore the effects of internal and external incentives on cooperative behavior,respectively.The cooperative behaviors under the two stimulation methods both produced significant brain-to-brain correlations in the dorsal lateral prefrontal and subfrontal gyrus.From the perspective of brain interaction,the three experimental systems comprehensively study the brain activities of cooperative behavior in real situations and the influence of incentives on them,which helps to grasp the brain mechanism of cooperation and the role that incentives play in it as a whole.Based on the experimental results,the following conclusions are drawn: First,the cooperative task of gestures is proposed and proved to be a good task paradigm for studying cooperative behavior.Second,compared with similar tasks,subjects under cooperative tasks generated inter-brain synchronization in the right dorsal lateral prefrontal region.Third,both internal and external incentives promote cooperative behavior,activating the dorsal lateral prefrontal and subfrontal gyrus,and significant inter-brain synchronization was observed.In summary,the study found that individuals with cooperative expectations can produce cooperative behaviors,which are accompanied by inter-brain synchronization;and incentives can enhance synchronous behavior and inter-brain synchronization,and research supports the theory of shared intentions.