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Thank you for your help! One quick follow-up question: Are the values I get by using spm_summarise (input: con_images) average betas or how are these values called? Best regards, Dennis On Wed, Apr 29, 2015 at 9:46 PM, MCLAREN, Donald <[log in to unmask]> wrote: > For #1: I would make either a bar plot or a plot with 2 lines - where each > line is a different level of the factor and then you have 2 points on each > line representing the levels of the other factor. All you need is the > individual con_ values for each of the 4 factor-level pairs. You can use > spm_summarise to extract the con_values from the single ROI. If you have > multiple ROIs, take a look at my peak_nii tool that has code for extracting > data. Then plot in your favorite plotting program. > > For #2: If you want to plot the 4 factor-level pairs for each subject > against a covariate, then you'd need to make a 3D graph. The simpler > solution would be to plot the interaction contrast (input con_ images) > against the covariate value. > > 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 Wed, Apr 29, 2015 at 2:12 PM, Dennis Dal Mas < > [log in to unmask]> wrote: > >> Dear SPM experts, >> >> I have a significant result for an interaction contrast (interaction >> between 4 regressors) that correlates with a covariate on second level. >> I would like to illustrate this significant result for the covariate of >> the interaction. More precisely, I would like to create figures for two >> things: >> 1.) how the interaction looks like in the significant cluster >> 2.) I would also like to show a scatterplot for the correlation (between >> the covariate and the interaction contrast). The correlation should show >> how strong the significant pattern is for each participant. >> >> What kind of figures would you create for that and what would be the >> optimal procedure to create them (how can I extract the relevant data for >> the scatterplot given my scenario [interaction between 4 regressors + >> covariate; I think I need one value for each participant that represents >> the whole interaction])? >> >> Best regards >> Dennis >> >> >