Michelle is conducting a research study that is attempting to reduce the sensation of pain in rats by stimulating their
A) substantia gelatinosa.
B) intralaminar nuclei of the thalamus.
C) periaqueductal gray (PAG).
D) dorsal column nuclei.

Question

Quizplus · Accepted Answer

The periaqueductal gray (PAG) is a region in the midbrain that plays a key role in pain modulation. Stimulating the PAG has been shown to reduce the sensation of pain in rats, making it the best choice for Michelle's study. The substantia gelatinosa, intralaminar nuclei of the thalamus, and dorsal column nuclei also play roles in pain processing, but are not the most targeted regions for reducing pain sensation.

Michelle Is Conducting a Research Study That Is Attempting to Reduce