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- W2098892992 abstract "The majority of functional magnetic resonance imaging (fMRI) studies obtain functional information using statistical tests based on the magnitude image reconstructions. Recently, a complex correlation (CC) test was proposed based on the complex image data in order to take advantage of phase information in the signal. However, the CC test ignores additional phase information in the baseline component of the data. In this paper, a new detector for fMRI based on a generalized likelihood ratio test (GLRT) is proposed. The GLRT exploits the fact that the fMRI response signal as well as the baseline component of the data share a common phase. Theoretical analysis and Monte Carlo simulation are used to explore the performance of the new detector. At relatively low signal intensities, the GLRT outperforms both the standard magnitude data test and the CC test. At high signal intensities, the GLRT performs as well as the standard magnitude data test and significantly better than the CC test." @default.
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- W2098892992 date "1999-04-01" @default.
- W2098892992 modified "2023-09-22" @default.
- W2098892992 title "Generalized likelihood ratio detection for fMRI using complex data" @default.
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- W2098892992 doi "https://doi.org/10.1109/42.768841" @default.
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