How do I get the time of trial onset?

Author	Message
july1810	july1810 posted 9 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 28, Visits: 213	Hi, I would like to write the time of the beginning of certain trials relative to the onset of a response in another trial into the data file. However, I cannot really think of a way how to do this. Could you help me? The background is that I would like to determine the onsets of my regressors during a fMRI experiment, but I do not see the timing of the trials, responses etc. relative to each other. Best Julia
	Reply Like 47
Dave	Dave posted 9 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	You can read an applicable elapsedtime property /ontrialbegin, store it in a <values> entry and record that value to the data file and/or do other calculations based on it: <values> / trialstart = 0 ... </values> <trial mytrial> / ontrialbegin = [values.trialstart = script.elapsedtime; ] ... </trial> <data> / columns = [..., values.trialstart, ...] ... </data>
	Reply Like 61