Complex sentence: The VTA, the origin of dopaminergic cell bodies that comprise the mesocorticolimbic dopamine system, is widely implicated in the drug and natural reward circuitry of the brain, cognition, motivation, drug addiction, and several psychiatric disorders.
Split into simpler sentences: The VTA, is the origin of dopaminergic cell bodies that comprise the mesocorticolimbic dopamine system and is widely implicated in the drug and natural reward circuitry of the brain. It is important in cognition, motivation, drug addiction, and several psychiatric disorders.