When discussing his relationship with his wife Amber, Travis says, "I have this very strong sense of commitment and tranquility." Researchers have suggested that the neurophysiological basis of this feeling may be due to brain chemicals related to:
A) cocaine.
B) morphine.
C) alcohol.
D) cannabis.

Question

Quizplus · Accepted Answer

The feelings of commitment and tranquility Travis describes are often associated with the effects of endorphins, which are the body's natural opioids. Morphine, a choice in the list, is an opioid that mimics the effects of these endorphins, suggesting a neurophysiological basis related to the effects of morphine rather than the other substances listed.

When Discussing His Relationship with His Wife Amber, Travis Says