Using an adaptive filter to extract the hemodynamic response from fMRI data

Document Type

Conference Proceeding

Publication Date

1-1-2003

Abstract

The Hemodynamic Response Function (HRF) is the impulse response of the blood oxygen level dependent (BOLD) signal in the brain. The BOLD signal is what functional magnetic resonance imaging (fMRI) is sensitive to; therefore, an estimate of the HRF provides valuable information about the underlying function of the brain. The normalized least mean squares adaptive filter estimates the HRF and extracts its shape for every spatial point (voxel) in a time series of fMRI data.

Identifier

84943391658 (Scopus)

Publication Title

Proceedings of the IEEE Annual Northeast Bioengineering Conference Nebec

e-ISSN

21607001

ISSN

1071121X

First Page

75

Last Page

76

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