Millisecond Forums

We're designing a modified flanker task where participants have to respond to the flanker stimuli and then indicate the response they made on the previous trial. In other words, participants will be presented with the stimuli ("><>"), press a button to respond to this trial, then a fixation box will appear and participants will indicate the response they made on the previous flanker stimuli trial.

This continues throughout the block with participants indicating the direction of the presented flanker stimuli, then indicating their response on the previous flanker stimuli trial when the fixation box appears. So if we start on trial 3 (flanker stimuli), trial 4 (fixation box) would have participants indicate their response from trial 1 (flanker stimuli). Then trial 5 would be flanker stimuli, and trial 6 (fixation box) would have participants indicate their response from trial 3.

We need to store the response that the participant makes on each flanker stimuli trial in order to call it back during the fixation box trial to know if the participant is correct or incorrect. Is it possible to do this with the list element? I think so, but I'm not exactly sure how. 

Thanks for any help!