As compared to the brains of lean adolescent girls, the brains of obese adolescent girls show ______ somatosensory activity when they anticipate food and ______ reward circuit activity when they eat it.

Great interest in a visual stimulus causes the pupils to _______

a. dilate b. constrict c. hydrate d. ectropion

Which of the following uses X-rays to detect various abnormalities of the brain including injury sites, tumors, and evidence of recent strokes?

a) intracranial EEG b) magnetic resonance imaging c) computerized axial tomography d) electroencephalogram