The depression problem in GD agrees with the results reported by Lewis et al. in a study of 329 community-based dystonia patients (including 10.9% with GD) (17) and by Heiman et al. in a study of DYT1-TOR1A-manifesting carriers, non-manifesting carriers, and non-carriers (16). The gene discussed is TOR1A; the disease is depressive symptom measurement.