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Thank you so much Anderson! Kim Li (Ting) Clinical Research Coordinator Laboratory for Darwinian Neuroscience Emory University 404-727-3016 [log in to unmask]<mailto:[log in to unmask]> ________________________________ From: FSL - FMRIB's Software Library <[log in to unmask]> on behalf of Anderson M. Winkler <[log in to unmask]> Sent: Tuesday, May 2, 2017 9:57 AM To: [log in to unmask] Subject: Re: [FSL] Contrast on First Level Individual Analysis Hi Kim You'd use [1 1 -2] or [.5 .5 -1]. These two are the same. All the best, Anderson On 1 May 2017 at 09:54, Kim Li <[log in to unmask]<mailto:[log in to unmask]>> wrote: Hello all, I have a quick questions. On individual level, I have 3 EVs, male faces, female faces and objects. Now I want to pool male faces and females faces' response and compare them with the objects (so FACES vs OBJECTS). Should I do [1 1 -2] or [0.5 0.5 -1] or [1 1 -1]? Does the first and second contrast set up differ? Thanks, Kim ________________________________ This e-mail message (including any attachments) is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message (including any attachments) is strictly prohibited. If you have received this message in error, please contact the sender by reply e-mail message and destroy all copies of the original message (including attachments).