Activelets: Wavelets for sparse representation of hemodynamic responses
نویسندگان
چکیده
منابع مشابه
Activelets: Wavelets for sparse representation of hemodynamic responses
We propose a new framework to extract the activity-related component in the BOLD functional Magnetic Resonance Imaging (fMRI) signal. As opposed to traditional fMRI signal analysis techniques, we do not impose any prior knowledge of the event timing. Instead, our basic assumption is that the activation pattern is a sequence of short and sparsely-distributed stimuli, as is the case in slow event...
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ژورنال
عنوان ژورنال: Signal Processing
سال: 2011
ISSN: 0165-1684
DOI: 10.1016/j.sigpro.2011.03.008