Table 1.

Recognition memory performance.

	Trustworthy faces	Untrustworthy faces
Hits (H)	0.59 (0.15)	0.61 (0.14)
False Alarms (FAs)	0.38 (0.17)	0.32 (0.16)*
Discrimination indices
Pr	0.21 (0.15)	0.29 (0.18)*
d′	0.61 (0.50)	0.82 (0.56)
Response bias indices
Br	0.47 (0.20)	0.44 (0.17)
C	0.07 (0.44)	0.11 (0.35)

Numbers in parentheses indicate SD. Higher Pr and d′ values indicate better discriminability between old and new faces. Br values higher than 0.5 indicate liberal response criteria; lower Br values suggest conservative response bias. Negative C values correspond to a liberal response bias; positive C values correspond to a conservative response bias. *p < 0.01.