A 6-year-old boy is brought to the pediatric neurologist for a follow-up appointment. He has a several-month history of difficulty with upward gaze. A sagittal MRI is shown. A disruption of which of the following is most likely to be seen in this patient?
A) Circadian rhythm
B) Finger-to-nose test
C) Globus pallidus internus stimulation
D) Recognizing familiar faces
E) Romberg test
