Which of the Following Does Not Support the Dopamine Hypothesis

Multiple Choice

Which of the following does not support the dopamine hypothesis of schizophrenia?

A) Amphetamine produces a greater release of dopamine in schizophrenics than in control subjects.
B) Baseline levels of HVA do not differentiate controls and schizophrenics.
C) Increased dopamine receptors are found in postmortem schizophrenic brains.
D) Increasing the challenge dose of amphetamine makes schizophrenics' positive symptoms get progressively worse.