AX-CPT, proactive control task

70% of trials are A+X, 10% of trials are A+Y, 10% of trials are B+X, 10% of trials are B+Y.

Participants must press 'c' for the target (A+X trials) and 'n' for non-targets (every other combination). Y and B represent any letter other than A, X and K (because it is visually similar to X).

Inter-Trial-Interval is set to 1 second. Pause between stimulus 1 and 2 is set to 3 seconds. Response window is set to maximum of 1.5 seconds.

This task contains instructions, practice trials with feedback and experimental trials (total 160 trials). Break every 20 trials. Four blocks of 40 trials. Trials randomised within each block.

Adapted from Locke and Braver (2008) - not a direct implementation.

Gorilla Open Materials Attribution-NonCommerical Research-Only

AX-CPT, Locke and Braver (2008).
https://link.springer.com/article/10.3758/CABN.8.1.99