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Hi: Thank you very much for your answer... And, How can I get the activation areas thar are common to both first- level analysys ?... Sincerely, Gonzalo Rojas Costa On Sun, 8 Apr 2007 07:47:29 +0100, Steve Smith <[log in to unmask]> wrote: >Hi - you can combine two runs with a fixed-effects second-level >analysis. The design should be a single EV with "1" for both >timepoints, the contrast should be [1] and you should select the >Fixed Effects model instead of Mixed Effects. > >Cheers. > > > >On 8 Apr 2007, at 01:43, Gonzalo Rojas wrote: > >> Hi: >> >> I have the first-level analysis of two different fMRI studies of >> the same patient... How can I do a higher level analysis to get the >> difference between the first-level analysis ?... I read the >> documentation of FSL, but I couldn't understand very well how can I >> do such higher-level analysis... >> >> Sincerely, >> >> >> Gonzalo Rojas Costa >> >> >> -- >> Gonzalo Rojas Costa >> Laboratory of Medical Image Processing >> Department of Neuroradiology >> Institute of Neurosurgery Dr. Asenjo >> Jose Manuel Infante 553, Providencia, Santiago, Chile. >> Tel/Fax: 56-2-2003290 >> Cel: 56-9-7771785 >> www.neurorradiologia.cl > > >------------------------------------------------------------------------ >--- >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 >------------------------------------------------------------------------ >---