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- W100811966 abstract "We present an efficient algorithm using the Hilbert Transform for estimating the delay of the BOLD response to neuronal stimulation. With minimal additional computations, the algorithm estimates parameters generated in the widely used cross-correlation method and simplifies the interpolation required to estimate the response delay from the cross-correlation function. We examined errors in the Hilbert-based delay estimate associated with the use of DFT on short-duration discrete signals and proposed a method for minimizing these errors. Furthermore, we compared the delay estimates obtained with the Hilbert method to those obtained using the onset of the BOLD response. The Hilbert method resulted in less variance in the delay estimate despite the potential for higher variability in the latter part of the BOLD response. This improved delay estimate was attributed to the reduced sensitivity of the Hilbert method to noise contamination compared to the onset method." @default.
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- W100811966 date "2003-02-01" @default.
- W100811966 modified "2023-10-12" @default.
- W100811966 title "Estimation of FMRI response delays☆☆Grant sponsor: The Whitaker Foundation Special Opportunity Award Program, the Jobling Foundation, the Anthony J. and Rose Eannelli Bagozzi Medical Research Fellowship. NIH; Grants EY10244, MH51358, GCRC 5M01RR00058." @default.
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- W100811966 doi "https://doi.org/10.1016/s1053-8119(02)00024-1" @default.
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