PSY100Y5 Lecture Notes - Lecture 3: Selective Serotonin Reuptake Inhibitor, Agonist, Dopamine Antagonist
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In well-myelinated neurons, the speed can go up to 100 metres per second. Therefore the speed at which we transmit any information is dependent on the amount of myelin on any axon. Acetylcholine responsible for motor control. without it you would be paralyzed. It is also implicated in learning, memory and sleep and dreaming. Example of anatagonist for acetylcholine: blocks the effect of acetylcholine: qra. It fills up the acetyl choline transmitters to the brain so they cant send signals. Norepinephrine: arousal and vigilance, eating behavior, dreaming, eating, walking. Dopamine: feel good, anything that gives you pleasure. Involved in voluntary motor control: low level of dopamine: parkinson, high levels: schizophrenia, dopamine agonist: drug that pretends to be dopamine: cocaine, caffeine, dopamine antagonist: anti psychotic medications, work by blocking the dopamine receptor sites. Serotonin: responsible for emotional pain, eating, sleeping, too much of serotonin may cause depression, agonist: ssri. Gaba: inhibitory neurotransmitter: when it binds it says don"t do things.
