Abstract #3481
Impact of Different Mental States on Low-frequency Functional Fluctuation
Xue Zhang 1 , Qianqian Zhang 1 , Xiaoyue Chen 2 , Xuesong Li 3 , and Lihong Wang 1
1
Center for Biomedical Imaging Research,
Tsinghua University, Beijing, Beijing, China,
2
Department
of Psychology, Tsinghua University, Beijing, Beijing,
China,
3
Department
of Biomedical Engineering, Tsinghua University, Beijing,
Beijing, China
How different mental states impact on resting state
functional fluctuation is a big concern for clinical
application of resting state fMRI. In this study, we
induced restful mental state using a mindful breathing
task and stressful mental state using two stressful
tasks, the mathematic mental loading task and speech
preparation task. Our results revealed significant
changes in resting-state low-frequency fluctuation (ALFF)
post versus pre each of these tasks. The changes were
not contributed to test-retest reliability, which
warrants careful interpretation of resting state fMRI
results.
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