Table 2. Results of two-way ANOVA for effects of faces on RT.

	Human faces				Monkey faces
	Interaction (Facial expression×Duration)		Facial expression		Interaction		Facial expression (Facial expression×Duration)
RM50	F(10, 72)=1.786	P=0.079	F(1.734, 62.43)=2.292	P=0.117	F(10, 72)=0.995	P=0.456	F(1.504, 54.13)=0.273	P=0.699
RM07	F(10, 72)=1.844	P=0.068	F(1.955, 70.37)=0.999	P=0.372	F(10, 72)=0.893	P=0.544	F(1.874, 67.46)=3.679	P=0.033
RM29	F(10, 72)=1.766	P=0.083	F(1.580, 56.90)=1.90	P=0.167	F(10, 72)=0.4256	P=0.930	F(1.708, 61.48)=0.121	P=0.856
Pooled data	F(10, 240)=2.540	P=0.006	F(1.892, 227.1)=3.255	P=0.043	F(10, 240)=1.324	P=0.218	F(1.828, 219.4)=1.156	P=0.313
	Faces of familiar people				Faces of familiar people mimicking monkey expressions
	Interaction (Facial expression×Duration)		Facial expression		Interaction (Facial expression×Duration)		Facial expression
RM50	F(10, 24)=0.769	P=0.656	F(1.974, 23.69)=1.182	P=0.324	F(10, 24)=0.314	P=0.970	F(1.480, 17.76)=0.686	P=0.474
RM07	F(10, 24)=0.747	P=0.675	F(1.980, 23.76)=1.211	P=0.315	F(10, 24)=1.063	P=0.426	F(1.790, 21.48)=1.181	P=0.321
RM29	F(10, 24)=1.808	P=0.114	F(1.733, 20.80)=2.339	P=0.127	F(10, 24)=0.906	P=0.543	F(1.578, 18.94)=0.660	P=0.494
Pooled data	F(10, 96)=1.273	P=0.256	F(1.953, 93.74)=1.478	P=0.234	F(10, 96)=1.273	P=0.256	F(1.953, 93.74)=1.478	P=0.234