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spinoza-centre / pRFline

Repository for the pRF in line-scanning project
MIT License
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pRF-experiment: start fixation task right of the bat #5

Closed gjheij closed 2 years ago

gjheij commented 2 years ago

The fixation task now starts after the DummyWaiterTrial of start_duration-length (=30s). It's suboptimal that the task starts when the bars start too.

gjheij commented 2 years ago

Fixed in here:

DummyWaiterTrial now has 1 phase consisting of the waiting period until the trigger arrives (instead of 2, where the second phase consisted of the 30s baseline). The task lives in the pRFTrial-object, so the baseline of 30s is turned into baseline duration (30s) / stimulus duration (0.25s) = 120 trials. These are appended to the trial list without stimulus, but with task.

Also added a cmd-line option to save screenshots offline (so either before or after the experiment, on the stimulus computer at the scanner so that dimensions are correct) for the design matrix: All subjects will have a different design matrix due to the position and size of the target pRF, as well as the aperture as this is a factor of the target pRF-size.