approached significanceP =0.06
However, when the sample was restricted to individuals who reported consuming alcohol within the 2 weeks preceding their scan ( n =31), the BD × AD interaction, signifying uniquely low levels of dACC glutamate/water in BD+AD (Cohen’s d for BD+AD vs HC=1.01), approached significance (F=3.83, P =0.06) and reached significance (F=4.21, P =0.05) once within-voxel gray matter/brain matter composition was statistically controlled; see Figure 2 .