<prompt> A child with obsessive compulsive disorder OCD undergoes imaging of brain. Which of the following structures is likely to show atrophy?PutamenCerebellumCaudate nucleusGlobus pallidus  <response>: Solutions: - Neuroanatomical Structures Involved in OCD Orbitofrontal Coex Caudate which is a pa of Basal Ganglia Thalamus Extra edge: Other impoant Brain areas and associated psychiatric disorders : Psychiatric Disorders Brain Areas involved 1. Anxiety disorders Locus ceruleus Raphe nucleus Caudate nucleus Temporal coex Frontal coex 2. Depression Damage to the left frontal lobe 3. Alzheimers disease Hippocampus 