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. 2007 Dec 11;4(1):27–30. doi: 10.1098/rsbl.2007.0535

Figure 1.

Figure 1

Number of individuals-2 with congruent reactions+non-congruent reactions+always displaying OMFs+never displaying OMFs for (a) two age groups ((i) infants: N=4+1+2+3; (ii) juveniles/adolescents: N=8+0+2+5) and (b) two classes of playmate age differences ((i) less than 2 years apart: N=6+1+2+4; (ii) more than or equal to 2 years apart: N=6+0+2+4). Significantly more individuals-2 showed congruent reactions than non-congruent reactions for juveniles/adolescents (binomial: N=15, p=0.004) and playmates more than or equal to 2 years apart (binomial: N=12, p=0.016). Filled bars, responses used to test the presence of RFM; hatched bars, responses ignored to test the presence of RFM.