Behavioral and neuroimaging data.

<p><i>Panel Ia. Arousal score</i>. Both TXs and CONs were highly aroused when watching the E-films. <i>Panel Ib. Selfness score</i>. Both TXs and CONs demonstrated high selfness ratings for their desired genders as opposed to the un-desired genders while watching the E-films. TXs, compared to CONs, rated higher <i>selfness</i> scores (P<0.001) for their desired genders when watching the E-films. Notably, TXs also reported high selfness ratings even while watching the N-films. In contrast, the CONs did not show such significant differences compared to the TXs and featured much lower <i>selfness</i> scores for their desireed genders when watching the N-films (P<0.001). <i>Panel IIa. Arousal score</i>. Both hormone-treated (H⁺/TXs) and untreated (H⁻/TXs) subgroups rated significantly higher levels of <i>arousal</i> when watching the E-films vs. N-films. <i>Panel IIb. Selfness score</i>. Both hormone-treated (H⁺/TXs) and untreated (H⁻/TXs) subgroups rated significantly higher <i>selfness</i> scores for the desired gender compared to the un-desired gender when watching the E-films and N-films. <i>Panel IIIa</i> and <i>Panel IIIb</i>. The imaging subgroups (H⁻/TXs and fc/CONs) showed similar rating patterns as those of their original groups (TXs and CONs, respectively). The two-tailed Wilcoxon signed-rank test was used for within-group comparisons. The asterisks indicate the level of significance. ** P<0.01, *** P<0.001.