Pii: S0933-3657(02)00007-6
نویسندگان
چکیده
6 7 Abstract 8 9 We use a Bayesian framework to detect periodic components in fMRI data. The resulting detector 10 is sensitive to periodic components with a flexible number of harmonics and with arbitrary amplitude 11 and phases of the harmonics. It is possible to detect the correct number of harmonics in periodic 12 signals even if the fundamental frequency is beyond the Nyquist frequency. We apply the signal 13 detector to locate regions that are highly affected by periodic physiological artifacts, such as cardiac 14 pulsation. # 2002 Published by Elsevier Science B.V. 15 16
منابع مشابه
Exploring fMRI data for periodic signal components
We use a Bayesian framework to detect periodic components in fMRI data. The resulting detector is sensitive to periodic components with a flexible number of harmonics and with arbitrary amplitude and phases of the harmonics. It is possible to detect the correct number of harmonics in periodic signals even if the fundamental frequency is beyond the Nyquist frequency. We apply the signal detector...
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