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Generalized Psychophysiological Interaction (PPI) Analysis of Memory Related Connectivity in Individuals at Genetic Risk for Alzheimer’s Disease
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November 14, 2017
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This manuscript describes how to implement a psychophysiological interaction analysis to reveal task-dependent changes in functional connectivity between a selected seed region and voxels in other regions of the brain. Psychophysiological interaction analysis is a popular method to examine task effects on brain connectivity, distinct from traditional univariate activation effects.
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Harrison, T. M., McLaren, D. G., Moody, T. D., Feusner, J. D., Bookheimer, S. Y. Generalized Psychophysiological Interaction (PPI) Analysis of Memory Related Connectivity in Individuals at Genetic Risk for Alzheimer's Disease. J. Vis. Exp. (129), e55394, doi:10.3791/55394 (2017).
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