Figure 1. GO/NOGO visual discrimination task and training procedure.

(a) Full behavioural training and experimental timeline. (b) All experiments were carried out under head-fixed conditions in an immersive dome environment. During initial training, stimuli were projected onto the entire inner surface of the dome (FULL-FIELD), before restriction to a monocular (MONO) projection region for the final task. (c) Task sequence showing all possible trial and outcome types with timing. Small rectangles (ie, orthogonal gratings, black, grey) show image projected onto screen during each trial state. A lick during the Stimulus (up to 2 s) state triggered immediate transition into a Reward (1.75 s) or Punishment (5 s) state, followed by a variable length (3–6 s) ITI state. S+ = Go stimulus, positively reinforced with water; S− = NoGo stimulus, negatively reinforced with airpuff; ITI = inter trial interval; buffer = 0.5 s at start of trial, licks during this period do not trigger a state change to Reward/Punishment state.