Psychology 1

Psychology 1 - Psychology January 24, 2008 How drugs affect...

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Psychology January 24, 2008 How drugs affect Synaptic Transmission Agonistic Effects – Agonists mimic the Effect of NT’s. o Drug induces increase in synthesis of neurotransmitter o Drug increases release of transmitter Antagonists block the effect of NTs. o Drug interferes with release of neurotransmitter. o Drug acts as false transmitter, occupying receptor sites, normally sensitive to neurotransmitter o Drug causes leakage of neurotransmitter from synaptic vesicles. Some Neurotransmitters o Dopamine (schizophrenia, Parkinsons) o Serotonin (effects sleep, wake; depression, OCD) o Endorphins (opiates; pain relievers, euphoria) o Adrenaline o Hormones. The Brain o From primative to complex Hindbrain – base of brain, important to survival, regulates breathing, blood pressure, etc. Parts—brainstem, cerebellum, reticular formation (in textbook), also pons, medulla, spinal cord. Midbrain – mediates certain reflexes, promotes smooth
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This note was uploaded on 03/04/2008 for the course PSYC 1001 taught by Professor King,brett during the Spring '08 term at Colorado.

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Psychology 1 - Psychology January 24, 2008 How drugs affect...

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