a person having parkinson’s disease shows defective action of which neurotransmitter in brain?

1. dopamine
2. seratonin
3. noradrenaline
4. eukalphia

When neurons in the substantia nigra degenerate, the resulting loss of dopamine causes the nerve cells of the striatum to fire excessively. This makes it impossible for people to control their movements, leading to the primary motor symptoms of PD.

Thanks and Regards

Apoorva Arora

IIT Roorkee

askIITians Faculty