Abstract #0897
Slower DMN, faster reaction: coupling of resting-state CBF and BOLD oscillations in specific frequency bands predicts vigilance task performance
Xiaopeng Song 1 , Shaowen Qian 2 , Kai Liu 2 , Zhenyu Zhou 3 , Gang Sun 2 , and Yijun Liu 1
1
Department of Biomedical Engineering, Peking
University, Beijing, Beijing, China,
2
Department
of Medical Imaging, Jinan Military General Hospital,
Shandong, China,
3
GE
Health Care, Beijing, China
We found that subject with slower resting-state BOLD
oscillation frequency in DMN reacted faster in
psychomotor vigilance test under both normothermic and
hyperthermic conditions. CBF mainly contributes to BOLD
oscillations of 0.01-0.04Hz under both conditions. The
coupling of CBF and BOLD oscillations in 0-0.01Hz and
0.04-0.1Hz were significantly decreased with
hyperthermia. Our study linked resting-state brain
rhythms to task performance, and for the first time
revealed the frequency-specific coupling between blood
supply and BOLD oscillation topology during rest and its
modulation in response to hyperthermia, which may shed
light on the physiological basis of resting-state BOLD
activities.
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