Hello group. I’ve noticed that there are some threads that discuss using both key release and key presses. I didn’t find anything that answered my question directly though. I want to present a series of events as follows:
Evt1 - Press & hold HOME key --> wait for home key depression
Evt2 - Fixation cross (variable interval, no response, subject still holding down home key)
Evt3 - Cue (fixed duration, no response, S still holding down home key)
Evt4 - Fixation cross (fixed duration, no response, S still holding down home key)
Evt5 - Target (on until response OR some duration)
I would like to:
- Ensure that the home key is held down during events 2-4
- Get the time from the onset of event 5 to RELEASE of the home key
- Get the time from the release of the home key to depression of the target key
For point 3, the time from the onset of event 5 to depression of the target key would also work.
From some of the other threads I read, I wonder if I have to create Evt5a and Evt5b (with identical displays), and take the key release time from 5a and the key press time from 5b. Any pointers would be appreciated.
By the way, the point of this is to decompose overall response time into decision time and movement time.