This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basics of Psychiatry, Subject name: Psychiatry
Endophenotypic markers of schizophrenia include all except? 
Select and explain. 
A. Smooth pursuit eye movement alterations, B. Saccadic eye movement disinhibition, C. Prepulse inhibition of stale response paradigm, D. P50 visual evoked potential
D: P50 visual evoked potential
Answer: D: P50 visual evoked potential 
Explanation: Endophenotypic markers of schizophrenia include: Oculomotor abnormalities Smooth pursuit eye movement alterations Saccadic eye movement disinhibition Prepulse inhibition(PPI) of stale response paradigms Deficits in sensorimotor gating, measured with electroencephalography-based event-related potential (ERP): standardauditory"paired stimuli" paradigm, so called "P50" response amplitude.