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. 2015 Dec 22;113(1):86–91. doi: 10.1073/pnas.1516978112

Fig. S1.

Fig. S1.

Supplemental results of experiments 1–5: analyses by subgroups. The performances of the IDs are superimposed on the bars representing the mean performance of the matched control group (SI Materials and Methods, Materials and Procedures). Error bars indicate the range. All tests were two tailed. We applied the modified t test (48) to test whether the performances of the IDs are different from the performances of the matched control participants. (A) The mean number of steps of demasking needed to recognize the pantomimes did not differ significantly among control groups 1, 2, and 3 [F (2, 24) = 0.13, P = 0.88], and all the IDs performed within the normal range of their respective control group [all modified t tests, ts < −0.29, all Ps > 0.05]. (B) Controls from groups 1, 2, and 3 performed the task with comparable efficiency for both the upper limb actions [F (2, 24) = 0.32, P = 0.73] and the non-upper limb actions [F (2, 24) = 3.27, P = 0.06]. All the IDs performed within the normal range of their respective control group for the non-upper limb actions [all modified t tests, ts > −0.1, all Ps > 0.28]. For the upper limb actions, ID2 named significantly fewer upper limb actions than her control group [modified t test, t (10) = −2.97, P = 0.01], but all the other IDs performed within the normal range of their control group [all modified t tests, ts > −1.86, all Ps > 0.09]. (C) Controls from groups 1, 2, and 3 performed the task with comparable efficiency [F (2, 24) = 0.54, P = 0.59], and all the IDs performed within the normal range of the respective control group [all modified t tests, ts > −0.58, all Ps > 0.57]. (D and E) Control participants of groups 1 and 3 had comparable sensitivity to violations of the actors’ expectations for both the large boxes [t (16) = 0.13, P = 0.9])and the small boxes [(t (16) = −0.29, P = 0.77], and all the IDs performed within the normal range of the respective control group [large boxes: all modified t tests, ts > −1.52, all Ps > 0.17; small boxes: all modified t tests, ts > −0.96, all Ps > 0.05]. (F) Controls from groups 1, 2, and 3 performed the task with comparable efficiency [F (2, 23) = 0.07, P = 0.92], and all the IDs performed within the normal range of the respective control group [all modified t tests, ts > −1.75, all Ps > 0.08].