Lecture: #16 ([Stimuli +] What gives drugs their power? )

Question 1

Neurotransmitters:

Acetylcholine

Answer 1

tells your muscles to move

Question 2

Neurotransmitters:

Dopamine

Answer 2

It activates receptors in your brain’s pleasure center.

Question 3

Neurotransmitters:

Serotonin

Answer 3

contributes to feelings of contentment and satiation. It influences appetite, sleep, anxiety, and mood.

Question 4

Neurotransmitters:

Adenosine

Answer 4

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.

Question 5

Reward system/”do-it-again centers”

Answer 5

Rewarding activity → Increased action potentials in reward system → Dopamine release → Feeling of pleasure → Increased motivation to repeat the activity.