An Analysis of Correlation Between Asymmetry of α Wave and Cognitive Behavior in Depression

Resting state brain waves of depression showed left-right asymmetry, which may be related to the strengthening of the right side of the brain. A typical cognitive disorder of depression is negative bias, especially outside information related to self, the phenomenon is more obvious. Recent studies have indicated that brain activity in resting state may reflect the intrinsic and essential function of brain function, and it is the foundation of cognitive activity. However, there was few study shew that left-right asymmetry about depression in resting state and whether the alpha wave is the foundation of negative bias. To Explore the relationship between asymmetry of α wave and cognitive behavior, we collected the EEG data behavior data in depressed people and healthy people. And analyzed the correlation between EEG data and behavior data in both depressed group and healthy group. The Result th was that a strong correlation between the self cognitive effects of the patient group and the self cognitive effects of the positive emotion and the left and right asymmetry of the resting EEG data. While the correlation between the self cognitive effects of control group were not related. These results further verify the relationship between the brain activity in resting state and cognitive activity, and it also reflects the relationship between the asymmetry of the alpha wave and the neural activity in the process of depression.