... 's brain. Drugs of abuse also boost dopamine levels. When a person takes a hit of crack cocaine or a cigarette, these drugs cause a spike in dopamine levels in the brain, and a rush of euphoria and pleasure. While it is not the only chemical involved in drug abuse, experts believe that dopamine is a major one. Regulation of dopamine plays a major part in our mental and ... be blocked, the study found. (Perkinson, 1994) Metamphetamine, or speed, produces a similar effect, dramatically boosting the supply of dopamine at brain synapses, which results in increased stimulation and feelings of...

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... an increase of the same neuro-chemical at the synapses. This manipulates the brain into believing the neural systems for pleasure has been activated as an elevated mood of 'euphoria' or 'a high' (Toates. 2007) is induced. This rapid depletion of dopamine from the neurons has a counteractive effect creating a dysphoria, a downer, leading to a craving for more cocaine to regain the ... ...

• Word Count: 1030
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

... should be known by all to prevent the future abuse of this drug. The effects of cocaine are immediate, extremely pleasurable, and brief. Cocaine produces an intense but short-lived euphoria and can make users feel more energetic. Like caffeine, cocaine produces a feeling of speed and reduces the appetite. Psychological effects include feeling of well-being and a superior sense of power ... ...

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• Approx Pages: 2
• Grade Level: High School

... . Given that we know so much about nicotine's ill effects, we might expect that people would avoid it like the plague. But nicotine, in common with all addictive substances, produces euphoria. Smoking delivers a rush of nicotine to receptors, alerting them and increasing their number. Since the receptors are located in the pleasure mediating centre of the brain - the mesolimbic system - smoking ... ...

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• Approx Pages: 2
• Grade Level: Undergraduate

... of abuse also boost dopamine levels. When a person takes a hit of crack cocaine -- or a drag on a cigarette -- the drugs cause a spike in dopamine levels in the brain, and a rush of euphoria, or pleasure. While it's not the only chemical involved in drug abuse, experts have come to believe that dopamine is the crucial one. In 2001 a study was led by researcher ... ...

• Word Count: 1130
• Approx Pages: 5
• Grade Level: Undergraduate