Table 11.

Normalized firing rate for each combination of direction and rank (serial action task)

	SMA			Pre-SMA			SEF			dlPFC
	Worst Dir	Middle Dir	Best Dir	Worst Dir	Middle Dir	Best Dir	Worst Dir	Middle Dir	Best Dir	Worst Dir	Middle Dir	Best Dir
A. Neurons with main effects of rank and direction but no interaction effect
Worst rank	0.52	0.59	0.71	0.49	0.50	0.63	0.46	0.54	0.66	0.54	0.62	0.74
Middle rank	0.60	0.72	0.82	0.60	0.69	0.80	0.55	0.66	0.79	0.63	0.72	0.88
Best rank	0.79	0.87	1.0	0.78	0.86	1.0	0.74	0.87	1.0	0.77	0.85	1.0
B. Neurons with main effect of rank and direction and an interaction effect
Worst rank	0.44	0.50	0.63	0.42	0.45	0.53	0.41	0.48	0.61	0.46	0.55	0.64
Middle rank	0.54	0.61	0.80	0.47	0.58	0.78	0.49	0.61	0.78	0.54	0.65	0.75
Best rank	0.67	0.83	1.0	0.70	0.85	1.0	0.63	0.77	1.0	0.61	0.74	1.0