Neurotransmitter Chart Neurotransmitter Affected Functions Associated Problems Agonists/Antagonists  Attention - Alzheimer’s Nicotine (ag)  Arousal Black Widow Venom (ant) Acetylcholine  Muscle action/ ACH movement  Memory  Mood/emotion - Parkinson’s Cocaine (ag)  Arousal + schizophrenia Amphetamines (ag) Dopamine  Learning cocaine & Ritalin (ag) amphetamines Alcohol (ant)  Mood - Depression Certain anti-depressants Norepinephrine  Arousal +High Blood Pressure (an)  Learning Beta-Blockers (ant)  Sleep - Depression Prozac (ag)  Hunger + Anxiety, inhibit LSD (ag) Serotonin  Aggression dreaming  Arousal +Obsessive-Compulsive Disorder  Inhibitory effect on - Anxiety, Huntington’s Alcohol (ag) axons Disease, epilepsy GABA  Sleep  Movement  Natural opiates No known problems Opium (ag) Endorphins  Pain relief Ecstasy (ag)  Pleasurable emotions Heroin (ag) Adapted from Kate Duggan’s Neurotransmitter Chart