Complex sentence: Child psychologist Catherine Deane (Lopez) is an expert in an experimental treatment for coma patients: a virtual reality device allows her to enter into the minds of her patients and attempt to coax them from their comas.
Split into simpler sentences: Child psychologist Catherine Deane (Jennifer Lopez) is an expert in an experimental treatment for coma patients. A virtual reality device allows her to enter into the minds of her patients and attempt to coax them from their comas.