When I run the coregister & reslice command, I use a structural image as the reference image, the mean image of the functional images as the source image and the functional images as the "other images". This runs fine, but the resulting functional images have the same resolution as the structural image resulting in much bigger filesizes. Is there a way to use coregistration where the resolution of the functional images doesn't change? I found this previous
discussion where somebody had a similar problem, but I can't find the "coregister only" functionality.