Hi - you can use pre-threshold masking or post-threshold contrast masking in order to see overlap between different contrasts (etc). - see the FEAT manual for more details. Cheers. On 27 Jun 2008, at 02:35, francesco de Bertoldi wrote: > Hello! > > I would like to study common activations between different sessions > in the same subject. Does anyone can help me figure out how to do a > conjunction analysis in FSL? > > best regards > > Francesco --------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------