Table 1.

Dimming of the irrelevant stimulus^a

Monkey	Null left	Null right	Stay left	Stay right	Shift left	Shift right	Wilcoxon singed rank test
M13
Mean	0.00	0.58	0.00	0.19	0.00	0.00	p = 0.5−1.0 for all conditions
SD	0.00	1.39	0.00	0.56	0.00	0.00
M24
Mean	0.16	0.81	0.15	0.59	0.40	0.86	p = 0.06−1.0 for all conditions
SD	0.37	1.06	0.53	0.93	0.97	1.16
M35
Mean	0.11	0.00	0.13	0.00	0.00	0.13	p = ∼1.0 for all conditions
SD	0.36	0.00	0.40	0.00	0.00	0.40

^aDimming of irrelevant stimulus (fixation trial, no response): % false alarms of total irrelevant dimming and standard deviations (SD). p (Wilcoxon signed-rank test for zero medians).