Abstract #2069
Analysis of Sampling Rate (TR) Dependence of Hurst Exponent of FMRI BOLD Time Series
Muhammad Kaleem 1 and Dietmar Cordes 2
1
Ryerson University, Toronto, Ontario,
Canada,
2
Lou
Ruvo Center for Brain Health, Las Vegas, Nevada, United
States
The abstracts presents a study of the Hurst exponent of
fMRI BOLD time-series acquired at different sampling
rates (TR). The Hurst exponent is related to the
spectral characteristics of a time-series, and the
change in the Hurst exponent value at different TRs due
to frequency aliasing is demonstrated.
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