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Abstract #3356

cardioX: Short-Time Localized Sliding Estimate of Cardiac Component for Physiological Noise Removal in fMRI

Christine Law1

1University of Oxford, Oxford, Oxfordshire, United Kingdom

The conventional technique for physiological noise reduction in fMRI uses Fourier analysis over long duration usually spanning the entire record. We propose, instead, a sliding window technique (cardioX) that more closely approximates the cardiac component variation over the short term. CardioX removes more cardiac energy in its frequency band than the coventional method.