Figure 2.

Relationships between intra-twin pair differences in GM volume and SCI. Within twin pair differences in lobar GM volume (mm³) and SCIs, as assessed with the SRS, are displayed for DZ and MZ twin pairs in which at least one twin was diagnosed with ASD (squares) or both were TD controls (circles). Pearson’s correlations that survived false discovery rate (Benjamini and Hochberg 1995) correction for multiple comparisons across all lobar structures (solid line) are displayed for ASD twin pairs. There were no significant correlations in TD twins or MZ twins with ASD.