| http://www.w3.org/ns/prov#value | - This animation shows what happens to dopamine transmission when an opiate drug such as heroin or morphine enters the brain's reward pathway.The opiate, shown in red, binds to opiate receptors on another neuron, shown here at the right. (The reason that some neurons have special receptors for opiates is probably that there are naturally occuring opiates in the brain.)This causes the amount of dopam
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