In my experiment there is a block with 15 trials that participants need to response under time-pressure. To illustrate this pressure, I'm trying to set 'timeout' in each trial, ideally 850-950 milliseconds. However, the formats available for timer don't seem to allow this. When set to "ss:ms", and timeout == 850, the timer will show 01:01 and then start the counting.
Could you kindly suggest how I should overcome this or is there some thing else I should do other than using timer? Thank you in advance!
Thao