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Thanks Donald, and is the same cutoff optimal if I define a unique event of interest on each trial and the five conditions with a single parametric modulator? Best Il mercoledì 1 luglio 2015, MCLAREN, Donald <[log in to unmask]> ha scritto: > The default 128Hz should be fine as the conditions are randomly mixed. > > Best Regards, Donald McLaren > ================= > D.G. McLaren, Ph.D. > Research Fellow, Department of Neurology, Massachusetts General Hospital > and > Harvard Medical School > Postdoctoral Research Fellow, GRECC, Bedford VA > Website: http://www.martinos.org/~mclaren > Office: (773) 406-2464 > ===================== > This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED > HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is > intended only for the use of the individual or entity named above. If the > reader of the e-mail is not the intended recipient or the employee or agent > responsible for delivering it to the intended recipient, you are hereby > notified that you are in possession of confidential and privileged > information. Any unauthorized use, disclosure, copying or the taking of any > action in reliance on the contents of this information is strictly > prohibited and may be unlawful. If you have received this e-mail > unintentionally, please immediately notify the sender via telephone at > (773) > 406-2464 or email. > > On Tue, Jun 30, 2015 at 5:49 PM, David <[log in to unmask] > <javascript:_e(%7B%7D,'cvml',[log in to unmask]);>> wrote: > >> Dear SPMers, >> if I have a fast event-related design with 5 conditions of interest >> randomly intermixed across trials, with each trial lasting 6.6 secs (3 tr) >> and the onset of each condition placed ~5secs after the beginning of a >> trial, what is the best cutoff for the high pass filter at the 1st level >> analysis? >> > > -- Pascucci David __________________________________________ Department of Neurological and Movement Sciences Section of Physiology and Psychology, University of Verona Strada Le Grazie 8, I-37134 Verona, Italy