@article{oai:soar-ir.repo.nii.ac.jp:00019413, author = {Murata, Y and Watanabe, T and Terasawa, S and Nakajima, K and Kobayashi, T and Yong, Z and Okuhara, M and Nakade, K and Terasawa, K and Maruo, S K}, issue = {1}, journal = {BAOJ Medical and nursing}, month = {May}, note = {Background: A lot of studies have reported that physical activity has a beneficial influence not only on physical and mental disorders but also on cognitive and brain function. Performance of a go/no-go task improves after exercise. However, few studies have compared neural activity in a go/no-go task performed before and after exercise to identify brain regions that may respond to exercise and underlie this result. Therefore, the purpose of this study was to examine the brain blood flow and compare the cortical activation pattern during a go/no-go task performed before and after exercise.
Method: Fifteen healthy subjects performed a go/no-go task before and after exercise. Functional near-infrared spectroscopy (fNIRS) was used to measure oxygenated hemoglobin concentration at 44 locations over both hemispheres. The exercise was of moderate intensity, defined as 50% of peak oxygen uptake.
Result: The reaction time on the go/no-go task was significantly faster after exercise than before. The oxygenated hemoglobin concentration quantified across the whole brain was lower after exercise, and this was the case for go trials and no-go trials. In go trials, the oxygenated hemoglobin concentration in dorsolateral prefrontal cortex and supplementary motor area were significantly lower after exercise.
Conclusion: These results suggest that the dorsolateral prefrontal cortex and supplementary motor area had lower activity in go trials in the go/no-go task performed after exercise than in go trials in the go/no-go task performed before exercise., Article, BAOJ Medical and nursing.1(1):002(2015)}, title = {Moderate exercise improves cognitive performance and decreases cortical activation in the go/no-go task}, volume = {1}, year = {2015} }