The idea behind __________ is to systematically expose patients to aspects of their experience in a gradual fashion so that they can confront their fears, using video game-like technology

A common cause of delirium among the elderly is

a. mutations of genes on chromosome 21. b. antihistamines. c. urinary tract infection. d. normal decline in fluid intelligence.

Which technology used to detect brain function creates images based on the detection of radiation from the emission of positrons?

a) fMRI b) MRI c) CAT scan d) PET scan