Describe symptoms of Parkinson's disease, HIV-associated neurocognitive disorder, and Huntington's disease.How do these forms of neurocognitive disorder differ from Alzheimer's disease?

Key terms and concepts that maybe included in student responses:
▪ Symptoms of Parkinson's disease-tremors, muscle rigidity, inability to initiate movements
▪ Symptoms of HIV-associated neurocognitive disorder-severe disruption of normal activity, memory and concentration problems, impaired ability to organize thoughts, speech impairment, withdrawal, irritability, depression, weakness in the limbs, coordination problems
▪ Symptoms of Huntington's disease-neurocognitive disorder and chorea (jerks, grimaces, and twitches)
▪ Symptoms of Alzheimer's disease-mild memory loss initially, but as the disease progresses, memory loss becomes more profound and gives rise to disorientation, irritability, apathy, dysphoria, cognitive deficits (agnosia, apraxia, aphasia)