This is similar to the report of McNaughton et al. (2008) that a higher percentage of FX mice exhibited grooming times higher than the median in the presence of a stimulus mouse [19], and a report of Fmr1 knockout mice exhibiting lower center mirror ratio and decreased win percentages in the dominance tube test [16], which indicated increased anxiety in Fmr1 knockout mice. The gene discussed is FMR1; the disease is Anxiety.