Dear HCP community, I send you a question of one of my students, because he cannot subscribe in the mailing list. His email is the following:
*I am currently studying tfMRI data and especially I am interested in the Working Memory task. However, I came up with a question regarding the onsets of the WM condition blocks. For example, in Subject 100307 the EV directory (path:100307/MNINonLinear/Results/tfMRI_WM_LR/ EVs) contains the .txt files with the onsets and durations of various conditions and trials (as already stated in the manual). Lets assume that we want to study the 2-bk face task (2bk_faces.txt). The onset is at 79.208 sec with a duration of 27.5 sec. * *The first part of my question is how to retrieve this information from the BOLD time-series (405 frames/run)? I mean, is there a fixed way to retrieve those frames of interest in the specific interval? The last part of my question concerns the onsets of the correct trials in this task. More specifically, the file 2bk_cor.txt contains the onsets of the correct trials however I would expect the onsets to be on the interval [79.208, 79.208+27.5] since those trials are executed within the condition block. Is there a way to match this information according to the 2-bk face onset?* *Best regards,* *Bill.* Manousos Klados, PhD Max Planck Institute for Human Cognitive & Brain Sciences Research Group of Neuroanatomy and Connectivity Phone: +49(0)-341-9940-2507 <+49(0)-341-9940-2507> Mobile: +49(0)-176-6988-1781 Email: [email protected] <[email protected]> Website: http://www.mklados.com Skype: mklados | Twitter: @mklados Address: Stephanstraße 1a PC D-04103 Leipzig Germany Join us at our next event:SAN 2016 Conferece <http://applied-neuroscience.org/san2016/index.php> _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
