By july1810 - 6/17/2015
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
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By Dave - 6/18/2015
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>
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