Table 1.

Individual memory performance on the auditory delayed matching-to-sample task in Experiment 1. Percentage correct of memory performance for males (n = 3) and females (n = 3) was shown (mean ± standard error) on match and nonmatch trials respectively. The results were based on 40 sessions of data per monkey subject.

		Percentage Correct
Gender	Subject	Match Trials			Nonmatch Trials
		Mean		S.E.	Mean		S.E.
Female	1	83.40	±	2.20	73.72	±	2.39
	2	81.50	±	1.71	71.97	±	1.96
	3	81.50	±	1.79	68.90	±	4.00
Male	1	85.31	±	1.59	80.16	±	3.11
	2	97.71	±	0.50	71.46	±	3.52
	3	84.61	±	1.63	79.71	±	3.32