Exact MAP Activity Detection in fMRI Using a GLM With an Ising Spatial Prior

Topics:
Healthcare Services
Tags:
Springer Science+Business Media
Source:
Springer Science+Business Media

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Overview: In this paper, they show that standard activation statistics, such as F-statistics, are derived from the log-likelihood ratio of a subset hypothesis test under classical, linear models of the BOLD signal. Consequently, the same exact MAP activity detection mechanism can be used with such General Linear Models (GLMs); thereby controlling false positive rates in a principled, Bayesian manner.

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Format: PDF | Size: 212KB | Date: Aug 2004 | Pages: 8

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