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- W2623303947 abstract "During 1994, a European Union (EU) concerted action was undertaken by 12 positron emission tomography (PET) centers scattered in eight European countries. These centers agreed to perform the same silent verbal fluency activation experiment. This chapter analyzes each center's data set and the pooled data set using statistical parametric mapping. It presents some first results showing how consistent the output of these analyses is and the increased sensitivity due to the increased number of subjects. First, each center's data set is analyzed using a completely randomized block design. Analysis of covariance (ANCOVA) is fitted and a t-statistic for the contrast condition effect constructed. Second, a group of nine centers with similar PET field-of-view are analyzed together (57 subjects, 347 scans) using a split plot design implemented in SPM94 with a regression coefficient specific to each center for global effects. Third, a singular-value decomposition is performed on the whole series of scans, and the variance is decomposed into orthogonal axes. Further, a multivariate analysis of variance (MANOVA) is used to test for center, condition, and center by condition effects and found a predominant center effect." @default.
- W2623303947 created "2017-06-15" @default.
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- W2623303947 date "1996-01-01" @default.
- W2623303947 modified "2023-09-26" @default.
- W2623303947 title "Analyzing a European PET Activation Study" @default.
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- W2623303947 doi "https://doi.org/10.1016/b978-012389760-2/50074-8" @default.
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