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. Author manuscript; available in PMC: 2009 Jul 20.
Published in final edited form as: Med Image Comput Comput Assist Interv. 2008;11(Pt 1):1016–1024. doi: 10.1007/978-3-540-85988-8_121

Fig 1.

Fig 1

An artificial population of voxels illustrating the space of activation profiles. The experiment presents three stimuli and evokes two distinct profiles. The blue, dashed line shows an original vector of regression coefficients. A hypothesis test comparing the first and second stimuli projects the vector of regression coefficients onto the dotted line; the significance is a function of the projection coefficient. The red vectors are the cluster mean profiles.