Trialwise accuracy should be obtainable from the EV files (correct vs. error). For trialwise RTs, you would have to download the e-prime output files from the HCP servers (after sign-up, as one would have to do to download unrestricted demographics and behavior). But in my opinion it’s unclear whether RTs are interesting/useful for these specific tasks included in the HCP.
We downloaded the data from OSF to see if we could find trial-wise accuracy, but had no luck. The behavioral data appear to be aggregated. Is there any way to recover the trial-wise behavioral data for the task. We are attempting to use tfMRI to predict responses.
Hi,
Apparently, no separate package containing only the e-prime output files is available in HCP servers. As we found out, the trial-wise behavioral data for each task is only obtainable from a giant-size package containing all the fMRI data of the corresponding task. Has anyone managed to find the trial-wise behavioral data as a separate dataset?
That sounds right; I don’t know if it’s available in any independent format. I would say that trial-level behavior from a block design — which most HCP tasks used — is likely to have relatively small utility for fMRI analyses. I think part of the reason that the detailed trial-level data is not easily accessible is that there isn’t going to be too much you can do with it, unfortunately.