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Yes - a voxelwise p has ignored all other voxels when estimating the test statistic (the tstat). A TFCE p at a given voxel reflects the TFCE score at that voxel, which takes into account the neighbourhood support - ie both spatial extent and strength of the signal at that point. I recommend reading the TFCE paper for more details. Steve. On 20 Jan 2013, at 20:07, Cornelius Werner wrote: > Hello dear list, > > is there a difference between *vox_p_tstat* images and, let's say, *tfce_p_tstat* images as an input to fdr? Thanks for any clarification! > > Cheers, > Cornelius > > -- > Cornelius Werner > cornelius.werner<at>gmail.com --------------------------------------------------------------------------- Stephen M. Smith, Professor of Biomedical Engineering Associate Director, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222726 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~steve ---------------------------------------------------------------------------