Hi.

I need to modify a go/nogo task (which I already have) and I am having some trouble. In the task, I will be presenting stimuli to which the participants respond (or not). This I can already do. Now, I need to present a sound file (with a TTL) 300 ms after the presentation of the go/nogo stimulus. How can I (a) present the sound file after this 300 second delay while (b) recording the RT for the previously presented go/nogo stimulus? I suppose I could introduce a blank stimulus for 300 ms after the go/nogo stimulus and then present the sound, but how will I allow participants to respond to the go/nogo stim, and how can I record the RT of this response from stimulus onset?

Thanks!