Answer:
Behavioral intervention study
Explanation:
The type of study that best describes the experiment in which a subject performs a cognitive task while in a brain scanner (e.g., fMRI), and researchers measure indirect changes in activity in specific regions of the brain is behavioral intervention study.
Chuck's symptoms characterize catatonia. Catatonic schizophrenia involves bodily symptoms-stiffness or excessive motor activity and taking of unusual body positions. Person with catatonia can, for example, to stand on one leg for hours without moving, which is to a normal person impossible.
Your answer is personality stablization