Drug addiction and dopamine levels
[DOC File]COGNITIVE SCIENCE 175
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Furthermore, repeated drug administration produces sensitization of extracellular dopamine levels in the nucleus accumbens and behavioral sensitization in rats, as evidenced by an enhanced locomotor response and increased dopamine release in brain (23,24).
[DOC File]Aardvarksfly
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Di Chiara, G. A. (1998). Motivational learning hypothesis of the role of mesolimbic dopamine. in compulsive drug use. Journal of Psychopharmacology, 12 (l), 54-67. National Institute on Drug Abuse. (2012). Principles of drug addiction treatment: A research-based guide (NIH Publication No. …
[DOC File]The relationship between dopamine and cocaine addiction
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: At first, drug use may cause floods of dopamine. But prolonged drug abuse causes the brain’s dopamine levels to decrease. That means the brain might need more of the drug just to get the dopamine levels back to normal and even more to produce the high that it craves.
[DOCX File]MS. LIS
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In the “new view” on dopamine reward and drug addiction, dopamine is still associated with reward and motivation but a new emphasis is also put on dopamine’s role in processing saliency. Drug addiction affects reward and saliency in the following ways: when a drug is first administered, there is a large amount of DA released by the ...
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Without a dose of the drug, dopamine levels in the drug abuser’s brain are low. The abuser feels flat, lifeless, depressed. Without drugs, an abuser’s life seems joyless. Now the abuser needs drugs just to bring dopamine levels up to normal levels.
[DOC File]Quiz: The Brain and Addiction - National Institute on Drug ...
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The levels of dopamine here are extremely delicate so even slight increases or decreases to the normal amount can cause your memory to suffer. ... This extra dopamine causes one to experience heightened feelings of pleasure and addiction in wanting more of the drug. 8. Functions of dopamine and behavior and cognition
[DOCX File]Overview - College of Humanities and Sciences - College of ...
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Sep 18, 2009 · Addiction is a treatable disease but not always curable. Even if the physical condition is corrected, the psychological factors which triggered the original addiction need to be addressed and corrected to avoid a relapse. Withdrawal occurs when an addict has used a drug long enough to create a physical dependence within the brain and body.
Drug Abuse and Chemical Imbalance in the Brain: Dopamine, Serot…
If dopamine is involved in cocaine-seeking behavior, we predict that dopamine levels will increase prior to the rat pressing the bar. And if dopamine is involved in cocaine-seeking behavior, then dopamine may hold the key to understanding the neurobiology of persistent drug addiction.
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