Discussion #13- Brain What would one consequence be if there were benign brain tumors near the mesencephalic aqueduct?

Discussion #13- Brain What would one consequence be if there were benign brain tumors near the mesencephalic aqueduct?
If you heard a loud sound that startled you so that you turned your head, what parts of your midbrain would you use?
If you had a stroke only affecting the cerebral cortex and the stroke resulted in your being completely blind, what part of the brain is most likely to be dead?
If you opened a conscious patient's skull and then electrically stimulated the superior right postcentral gyrus, what would the patient think you were doing specifically?
If your corpus collosum were severed, could your right postcentral gyrus know what your left hand was doing? Why or why not?