Changes in Functional Connectivity Between Default Mode Network and Attention Network in Response to Changes in Aerobic Exercise Intensity

• 영문명: Changes in Functional Connectivity Between Default Mode Network and Attention Network in Response to Changes in Aerobic Exercise Intensity
• 발행기관: 대한신경정신의학회
• 저자명: Young-woo Ko Sun Mi Kim Kyoung Doo Kang Doug Hyun Han
• 간행물 정보: 『Psychiatry Investigation』제20권 제1호, 27~34쪽, 전체 8쪽
• 주제분류: 의약학 > 정신과학
• 파일형태: PDF
• 발행일자: 2023.01.31

영문 초록

Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Republic of Korea Objective Aerobic exercise may be associated with changes in brain activity within the default mode network (DMN) and dorsal attention network (DAN). We hypothesized that changes in functional connectivity (FC) within the DMN and DAN might be most effectively activated by moderate-intensity exercise. Methods Resting-state functional magnetic resonance imaging scans and visuospatial attention tests after resting were performed before and after each of moderate- and high-intensity aerobic exercises (10 min each) in 15 healthy male volunteers. Results The reaction time during the attention test increased significantly, and the rate of correct responses decreased from moderateintensity exercise condition to high-intensity exercise condition. FC within the DMN under high-intensity exercise condition was higher than that under pre-exercise and moderate-intensity exercise conditions. FC within the DAN under moderate-intensity exercise condition was the highest, whereas FC between the DMN and DAN under moderate-intensity exercise condition was the lowest. Changes in cognitive domain functions were associated with changes in FC between the DMN and DAN. Conclusion Our results support the inverted-U hypothesis of maximum arousal efficacy during moderate exercise. Both cognitive domains, namely, the attention system and brain activity domains, may be better under moderate-intensity exercise than under high-intensity exercise.

목차

INTRODUCTION

METHODS

RESULTS

DISCUSSION

REFERENCES

키워드

Aerobic exercise Resting-state functional magnetic resonance imaging Brain functional connectivity Default mode network Dorsal attention network