Table 5.

Proportion of hits in the adaptive task (n = 20).

Drug	Context	Relative stimulation magnitude
		Low	High
Placebo	1 (med/high)	0.90 (0.09)	0.87 (0.12)
	2 (low/med)	0.86 (0.12)	0.78 (0.18)
	3 (low/high)	0.96 (0.06)	0.96 (0.08)
Haloperidol	1 (med/high)	0.86 (0.12)	0.87 (0.10)
	2 (low/med)	0.87 (0.10)	0.75 (0.17)
	3 (low/high)	0.93 (0.10)	0.93 (0.08)

Values represent proportions of correct responses across-subject means (SD).