Which chemical has been shown to play an important role in the formation of new memories while we sleep but does not seem to improve memory when taken as a supplement?
A) acetylcholine
B) adrenalin
C) dopamine
D) serotonin

Question

Quizplus · Accepted Answer

Acetylcholine has been shown to play a crucial role in the formation of new memories during sleep, but several studies have found that taking acetylcholine supplements does not improve memory. Adrenalin, dopamine, and serotonin have all been linked to memory processes, but they do not play as prominent a role in memory consolidation during sleep as acetylcholine does.

Which Chemical Has Been Shown to Play an Important Role