I'm running a task which requires multiple repetitions of a single stimulus with only occasional responses to variations and a final decision stimulus without a time constraint. The repetitions need to appear for 250ms every 750ms (pretty quickly). Due to the high number of repetitions with the timing constraint, the most efficient way I can find to program the .csv file is to put each repeated stimuli on a single row (so, 3 or 30 stim-loc-time columns). The occasional stimuli needing a response in under 1500ms I've been tagging with a <#> style that has a max time limit of 1500! with the feedback option turned off.

My problem: I also need a set of responses with a time limit, but also includes feedback for slow or incorrect responses. Can I have max time trials with AND without feedback in the same file? I don't want feedback for everything that has a time limit or for all incorrect responses.

I'd appreciate any help, thanks!

- Sarah