Q: Is blinking a semi-autonomic rapid closing of the eyelid? ¶
A: Yes.
Q: Is blinking dry or irritated eyes? ¶
A: Yes, and it is most likely that it is controlled by a "blinking center" of the globus pallidus of the lenticular nucleus—a body of nerve cells between the base and outer surface of the brain.
Q: Is blinking conducted in the pre-motor brain stem and happens without conscious effort? ¶
A: Yes, and like breathing and digestion.
Q: Is blinking associated with Parkinson's disease? ¶
A: Yes.