Humans
Huge dose of brain chemical dopamine may have made us smart
Two “thinking” regions of human brains are much richer in a neurotransmitter called dopamine than the equivalent brain regions in apes and monkeys
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Two “thinking” regions of human brains are much richer in a neurotransmitter called dopamine than the equivalent brain regions in apes and monkeys
OCD has been linked to genes active in a brain circuit involved in learning and decisions. The finding may help explain why the condition can run in families