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Thank you. Does this mean that whatever I enter in the threshold window (T or p value) after selecting the contrast of interest does not influence the written contrast image? Thanks again Best wishes ________________________________ Von: MCLAREN, Donald [[log in to unmask]] Gesendet: Mittwoch, 30. September 2015 17:23 An: André Schmidt Cc: SPM Betreff: Re: [SPM] threshold for contrast images at the first level The creation of contrast images does not require any thresholds. The thresholding step is separate from creating the contrasts. If you are using the con_ images in the group analysis, no thresholding should be done. The threshold chosen at the first-level for other types of analysis or reporting results depends on what the goals of thresholding the data. Best Regards, Donald McLaren, PhD On Wed, Sep 30, 2015 at 11:18 AM, André Schmidt <[log in to unmask]<mailto:[log in to unmask]>> wrote: Dear experts, What for a threshold are people usually taking to create contrast images at the first level, 0.05 uncorrected? Many thanks André