Psych Chapter 2 Practice Questions

Describe the role of: fMRI, PET scans, & MRI

fMRI scan - Track successive images of brain tissue to show brain function

PET scan - track radioactive glucose to reveal brain activity

MRI scan - uses magnetics fields and radio wave to show brain anatomy

The _____ is a crossover point where nerves from the left side of the brain are mostly linked to the right side of the body, and vice versa

brainstem

In what brain region would damage be most likely to (a) disrupt your ability to jump rope? (b) disrupt your ability to hear? (c) leave you in a coma? (d) cut off the very breath and heartbeat of life?

a. cerebellum

b. thalamus

c. reticular formation

d. medulla

An electrical stimulation of a cat’s amygdala proves angry reactions. Which automatic nerves system division is activated by such stimulation?

The sympathetic nervous system.

What are the three key structures of the limbic system, and what functions do they serve?

a) The amygdala is involved in aggression and fear responses.

(b) The hypothalamus is involved in bodily maintenance, pleasurable rewards, and control of the hormonal systems.

(c) The hippocampus processes memories of facts and events