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Hi Xi Chen The first one can be done with the FSL tool POSSUM. The other are a bit more tricky. Hope this helps Torben Torben Ellegaard Lund Assistant Professor, PhD The Danish National Research Foundation's Center of Functionally Integrative Neuroscience (CFIN) Aarhus University Aarhus University Hospital Building 30 Noerrebrogade 8000 Aarhus C Denmark Phone: +4589494380 Fax: +4589494400 http://www.cfin.au.dk [log in to unmask] Den 29/10/2008 kl. 13.38 skrev Cheng, Xi (NIH/NIMH) [E]: > Dear Friends > > We need to simulate fMRI noise for a quality control study. > Does anyone know if there’s any existing tools/packages can do that? > > We need to simulate the following noise: > > 1. Head motion > 2. Scanner noise (ideally we want to simulate noise from > different scanners) > 3. Respirations > 4. others > > Thanks > > -Xi Cheng > Research Fellow > Genes, Cognition and Psychosis Program (GCAP) > NIMH/NIH >