REM Sleep: Rapid Eye Movement (REM) sleep is a stage of sleep characterized by vivid dreaming and rapid eye movements. It is when most dreams occur.
Activation-Synthesis Theory: This theory suggests that dreams are a result of random neural activity in the brain during REM sleep, which our mind then tries to make sense of by creating narratives.
Neurotransmitters: These are chemical messengers in the brain that transmit signals between neurons. They play a role in regulating and modulating neural firing, including during dreaming.