Neurobiology of Obsessive-Compulsive Disorder
A client experiences significant distress from intrusive thoughts about contamination and compulsively washes their hands for several hours daily. Which neurobiological mechanism is most likely responsible for the persistence of these symptoms?
A
Dysfunction in cortico-striatal-thalamic circuits
B
Reduced connectivity in the default mode network
C
Hyperactivity in the parasympathetic nervous system
D
Excessive dopamine in the nucleus accumbens
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