Re: what would you like to do with this timestamp?, see below
I am working on a serial reaction time task where we want the next target to be presented some consistent interval after the previous target is responded to.
Although having a consistent interval does not seem possible because the reaction time can happen in between screen refreshes, we would like to know the interval from a response to the onset of the next target presentation, and that interval will be important in our analysis. Computing that interval requires knowing approx the exact time of screen flips.