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. 2011 Mar 15;6(3):e17752. doi: 10.1371/journal.pone.0017752

Figure 4. Thermal grill illusion on the basis of tri-allelic 5-HTTLPR genotype and gender.

Figure 4

Based on our expectations of gender differences, the genotype groups were further divided into females (panel A) and males (panel B). Females differed significantly in ratings of unpleasantness for the thermal grill, *  =  significant at p<0.05.