Lecture: #16 ([Stimuli +] What gives drugs their power? ) Flashcards
1
Q
Neurotransmitters:
Acetylcholine
A
tells your muscles to move
2
Q
Neurotransmitters:
Dopamine
A
It activates receptors in your brain’s pleasure center.
3
Q
Neurotransmitters:
Serotonin
A
contributes to feelings of contentment and satiation. It influences appetite, sleep, anxiety, and mood.
4
Q
Neurotransmitters:
Adenosine
A
a by-product of cellular metabolism, accumulates in brain synapses throughout the day, leading to feelings of tiredness. Adenosine inhibits brain activity and makes you feel sleepy.
5
Q
Reward system/”do-it-again centers”
A
Rewarding activity → Increased action potentials in reward system → Dopamine release → Feeling of pleasure → Increased motivation to repeat the activity.