Figure 3
Number of participants who selected the piece-rate or tournament payment scheme in Task 3 according to treatment and empathy quotient (EQ)/systemizing quotient (SQ) scores. We assigned the participants whose scores on the second principal component were lower (i.e., autistic-like traits) and higher than the median into the EQ(L)–SQ(H) and the EQ(H)–SQ(L) group, respectively. Fourteen of the 47 EQ(H)–SQ(L) participants in the oxytocin group and 22 of the 49 EQ(H)–SQ(L) participants in the placebo group chose the tournament payment scheme (Fisher’s exact test with p values adjusted according to the Benjamini and Hochberg method; p = 0.72, Odd’s ratio = 0.52). Fourteen of the 46 EQ(L)–SQ(H) participants in the oxytocin group and 12 of the 47 EQ(L)–SQ(H) participants in the placebo group chose the tournament payment scheme (Fisher’s exact test with p values adjusted according to the Benjamini and Hochberg method; p = 1.00, Odd’s ratio = 1.28).
