Cognitive function is thought to be related to the periodic electrical activity (electroencephalographic rhythm) of the brain.Therefore, studies that attempt to cause changes in specific cognitive functions by stimulating the brain to change the related EEG rhythms have attracted attention, but studies demonstrating this have not been conducted so far. rice field.

　In this study, we first investigated the EEG rhythm when healthy study participants gave up taking the quiz.As a result, an increase in frontal theta wave activity was observed in the process of giving up.If this relationship is correct, increasing theta waves is expected to give up earlier when it is difficult to solve the quiz.Therefore, next, using repetitive transcranial magnetic stimulation, which is one of the non-invasive brain stimuli, the quiz was solved by giving a stimulus to induce theta waves to the front of the research participants during the task of solving the quiz. I analyzed the time to give up.As a result, it was found that the time to give up becomes faster as the theta wave increases.

　This result suggests that proper control of EEG rhythm may cause changes in specific cognition and behavior.It has been found that those who can give up efficiently are less likely to be ruminated by certain behaviors or negative thoughts.Based on this result, it is expected to establish a brain wave rhythm control method that leads to improvement of cognitive function, such as control of brain wave rhythm that can reduce rumination in daily life.

Paper information:[Scientific Reports] Behavioral effects of task-relevant neuromodulation by rTMS on giving-up