Are brain damages symptoms of huntington's disease?

Huntigton's chorea: Huntigton's chorea is a specific disease that happens usually in the 40's secondary to a damage or regression of a specific area of the brain.

Yes in Basal Ganglia: The areas in the brain first targeted in huntington disease are the caudate and putamen deep in the brain. Research has shown that these areas begin to degenerate 9 to 11 years prior to the onset of motor symptoms. Cognitive problems have also been shown to begin before the movement signs, as do some mood changes. Patients tend to first notice cognitive changes in their functioning at work.