Drugs and their effects - Module 3.2 Drugs and their...

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Module 3.2 Drugs and their effects Stimulants Drugs that increase energy, alertness and activity. They prevent neurons from absorbing dopamine or serotonin after releasing them. Some common stimulant drugs: Drugs Effects on nervous system Amphetemine -prescribe for people with attention deficit disorder Increases release of dopamine and decreases reuptake, prolonging effects Cocaine Decreases reuptake of dopamine, prolonging effects Methyphenidate (Ritalin) -prescribe for people with attention deficit disorder Decreases reuptake of dopamine but with slower onset and offset than cocaine Caffeine Blocks a chemical that inhibits arousal Nicotine -Stimulates some neurons that release dopamine -Stimulates some acetylcholine synapses Acetylcholine – one of the common neurotransmitters in the nervous system Dopamine is a neurotransmitter that is naturally produced in the body. It is present in the regions of the brain that regulate movement, emotion, motivation and the feeling of pleasure. Dopamine stabilizes the brain activity, regulated flow of information to other parts of the brain and controls movement. Dopamine synapses are critical for people’s motivation. (eg: sex, food to gambling and video games.) Serotonin is a neurotransmitter, which is a substance that helps relay signals inside the brain.
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This note was uploaded on 11/10/2011 for the course PSY 101 taught by Professor Gina during the Fall '10 term at Southern University at New Orleans .

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Drugs and their effects - Module 3.2 Drugs and their...

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