Addiction onset by cocaine and amphetamines is characterized by increased persistence of dopamine in the brain's synapses.
Usually, dopamine is quickly removed from the synapses where it functions, but these addictive drugs delay dopamine removal, leading to increased influence of dopamine.
Dopamine is a neurotransmitter responsible for carrying information to various parts of the body and, when released, it causes a feeling of pleasure and increases motivation.
In addition, dopamine is involved in emotions, cognitive processes, movement control, heart function, learning, attention span, and bowel movements. It is also directly related to neurological and psychiatric disorders like Parkinson's disease, schizophrenia or ADHD.
See more about neurotransmitters at: brainly.com/question/9725469
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