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Home Q & A Board Science-Related Homework Help Psychology
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colleen colleen
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12 years ago
Explain how psychoactive drugs work in brain and explain why each drug has important side effects.
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Sunshine ☀ ☼

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12 years ago Edited: 12 years ago, psych.war
Psychoactive drugs generally interact with neuron signalling pathways. Such drugs can increase the release of transmitter molecules into the cleft or can block transmitter reuptake (both of which will increase the synaptic transmitter level).  A second mechanism involves the drug directly activating/inactivating postsynaptic receptors.  Because a single transmitter may be used in multiple brain pathways, a drug that passes throughout the brain may generate multiple behavioral effects.
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