Dopamine is widespread in the brain as well as the rest of the nervous system. This neurotransmitter plays a critical role in the control of movement. It has a stimulating effect on the heart, the circulation, the rate of metabolism, and is able to mobilize many of the body's energy reserves. It helps to modulate brain activity, control coordination and movement, and regulate the flow of information to different areas of the brain. Dopamine is believed to release chemicals that allow us to feel pleasure (e.g., endorphins). A massive disturbance of dopamine regulation in the brain can result in a person no longer being able to respond emotionally or express his or her feelings in an appropriate way
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Drug addiction
... Drug addiction. Drug addiction is the compulsive use of drugs despite the social, emotional, or ... effects in the brain. Dopamine signals occurring normally in the reward system ...
Dopamine sheds new light on drug addiction
... challenged beliefs about the role of dopamine in the brain, which could lead to ... Parkinson's disease, schizophrenia and drug addiction. The research suggests that dopamine has a far ...
Drug addiction - Wikipedia, the free encyclopedia
... Drug addiction, or substance dependence is the compulsive use of drugs, to the point where the user ... effects in the brain. Dopamine signals occurring normally in the reward system ...
Understanding Addiction
... neurotransmitters playing a major role in addiction is dopamine. Many of the concepts that apply to ... or desensitized to dopamine. One important aspect of drug addiction is how cells ...
Dopamine in drug abuse and addiction: results from imaging studies and treatment implications
NPG Subject areas. June 2004, Volume 9, Number 6, Pages 557-569. Feature Review. Dopamine in drug abuse and addiction: results from imaging studies and treatment implications. N D Volkow1,2,3,5, J S Fowler4, G-J Wang3 and J M Swanson6 ... drug reinforcement is well recognized but its role in drug addiction is much less clear ...
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