Table 1.

Memory performance after oxytocin and placebo for faces and nonsocial stimuli

	Oxytocin		Placebo		t	p
	Mean	SEM	Mean	SEM	t	p
Faces
Hit rate remember	0.46	0.04	0.40	0.04	1.001	0.323
False alarm rate remember	0.09	0.02	0.08	0.02	0.299	0.767
Hit rate know	0.29	0.02	0.30	0.03	−0.424	0.674
False alarm rate know	0.20	0.02	0.26	0.03	−2.030	0.049^*
Recollection	0.37	0.04	0.32	0.03	1.035	0.307
Familiarity	0.33	0.03	0.22	0.03	2.504	0.017^*
Overall recognition	0.46	0.03	0.36	0.03	2.287	0.028^*
Nonsocial
Hit rate remember	0.56	0.04	0.53	0.04	0.658	0.515
False alarm rate remember	0.11	0.02	0.10	0.02	0.561	0.578
Hit rate know	0.22	0.03	0.25	0.02	−0.822	0.416
False alarm rate know	0.22	0.02	0.23	0.03	−0.215	0.831
Recollection	0.45	0.04	0.43	0.04	0.461	0.648
Familiarity	0.24	0.03	0.27	0.02	0.859	0.396
Overall recognition	0.44	0.04	0.44	0.03	0.035	0.973

Overall recognition memory = hit rate (remember + know) − false alarm rate (remember + know). Recollection = hit rate (remember) − false alarm rate (remember). Familiarity = (hit rate know/(1 − hit rate remember)) − (false alarm rate know/(1 − false alarm rate remember)).
The right two columns indicate results from pairwise statistical comparisons.
↵*p < 0.05, significant differences between oxytocin and placebo in memory measures for faces, but not for nonsocial stimuli.