PMID- 36721883 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230215 IS - 1738-3684 (Print) IS - 1976-3026 (Electronic) IS - 1738-3684 (Linking) VI - 20 IP - 1 DP - 2023 Jan TI - Changes in Functional Connectivity Between Default Mode Network and Attention Network in Response to Changes in Aerobic Exercise Intensity. PG - 27-34 LID - 10.30773/pi.2022.0245 [doi] AB - 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 moderate-intensity 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. FAU - Ko, Young-Woo AU - Ko YW AD - Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Republic of Korea. FAU - Kim, Sun Mi AU - Kim SM AD - Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Republic of Korea. FAU - Kang, Kyoung Doo AU - Kang KD AD - Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Republic of Korea. FAU - Han, Doug Hyun AU - Han DH AD - Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Republic of Korea. LA - eng GR - R2020040186/Ministry of Culture, Sports and Tourism/ GR - Korea Creative Content Agency/ PT - Journal Article DEP - 20230125 PL - Korea (South) TA - Psychiatry Investig JT - Psychiatry investigation JID - 101242994 PMC - PMC9890042 OTO - NOTNLM OT - Aerobic exercise OT - Brain functional connectivity OT - Default mode network OT - Dorsal attention network OT - Resting-state functional magnetic resonance imaging COIS- Conflicts of Interest The authors have no potential conflicts of interest to disclose. EDAT- 2023/02/02 06:00 MHDA- 2023/02/02 06:01 PMCR- 2023/01/01 CRDT- 2023/02/01 01:53 PHST- 2022/08/25 00:00 [received] PHST- 2022/09/29 00:00 [accepted] PHST- 2023/02/01 01:53 [entrez] PHST- 2023/02/02 06:00 [pubmed] PHST- 2023/02/02 06:01 [medline] PHST- 2023/01/01 00:00 [pmc-release] AID - pi.2022.0245 [pii] AID - pi-2022-0245 [pii] AID - 10.30773/pi.2022.0245 [doi] PST - ppublish SO - Psychiatry Investig. 2023 Jan;20(1):27-34. doi: 10.30773/pi.2022.0245. Epub 2023 Jan 25.