Activity during error trials on the Go/No-Go task. Activity is significantly greater in individuals with Hoarding Disorder than in Healthy Controls in Mid-Cingulate Cortex (Mid-CC) and Posterior Cingulate Cortex (Posterior-CC), left Orbitofrontal Cortex (L OFC), Fusiform, Striatum, and Visual Cortex (p<0.001 uncorrected for multiple comparisons, superimposed on SPM8’s canonical single subject T1 image).