The actor Michael J.Fox suffers from Parkinson's disease,and John Nash,subject of the movie A Beautiful Mind,suffered from schizophrenia.The brains of both men can be expected to have _____ levels of dopamine.
A)extremely high
B)extremely low
C)normal
D)abnormal

Question

Quizplus · Accepted Answer

Parkinson's disease is associated with low levels of dopamine due to the death of dopamine-generating cells in the substantia nigra, part of the brain. Schizophrenia, on the other hand, is often associated with high levels of dopamine or an increased sensitivity to dopamine in certain areas of the brain. Thus, both conditions involve abnormal dopamine levels, but in opposite directions.

The Actor Michael J