All are true about Huntington's disease except:: (A) Chorea, (B) Behavioral disturbance, (C) Early onset of memory loss, (D) Cog-wheel rigidity.
Answer is C. Answer is C (Early onset memory loss): 'Memory loss is frequently not impaired until late in the disease' Memory loss is frequently not impaired until late in the disease, although attention judgement & executive functions may be seriously deficient at an early stage. Involvement of extrapyramidal system (caudate nucleus) may explain cog wheel rigidity.