Drd2a1 allele - Study guides, Class notes & Summaries

Down regulation - Answer- The way a drug reduces the number of receptor sites for a specific neurotransmitter, e.g., alcohol reduces GABA receptors causing hyperarousal. Pharmacodynamic tolerance - Answer- A defense mechanism of the brain that causes neurons to become less sensitive to the effects of psychoactive drugs. DRD2A1 allele - Answer- A gene that seems to have an influence on vulnerability to alcoholism, discovered in 1990. Nucleus accumbens - Answer- The area of the brain that...

Down regulation - ANSWER-The way a drug reduces the number of receptor sites for a specific neurotransmitter, e.g., alcohol reduces GABA receptors causing hyperarousal. Pharmacodynamic tolerance - ANSWER-A defense mechanism of the brain that causes neurons to become less sensitive to the effects of psychoactive drugs. DRD2A1 allele - ANSWER-A gene that seems to have an influence on vulnerability to alcoholism, discovered in 1990. Nucleus accumbens - ANSWER-The area of the brain that giv...

Down regulation The way a drug reduces the number of receptor sites for a specific neurotransmitter, e.g., alcohol reduces GABA receptors causing hyperarousal. Pharmacodynamic tolerance A defense mechanism of the brain that causes neurons to become less sensitive to the effects of psychoactive drugs. 00:00 01:47 DRD2A1 allele A gene that seems to have an influence on vulnerability to alcoholism, discovered in 1990. Nucleus accumbens The area of the brain that g...