Dopamine Brain Mechanism
by Jose Antonio Penas/science Photo Library
Title
Dopamine Brain Mechanism
Artist
Jose Antonio Penas/science Photo Library
Medium
Photograph - Photograph
Description
Dopamine brain mechanism. Illustration of a human brain and the areas involved in the flow, excitation and inhibition of the neurotransmitter and peripheral hormone dopamine. Dopamine plays a key role in the control of locomotion, reward-motivated behaviour, learning, working memory, cognition, and emotion. The white arrows show dopamine flow, the light blue arrows show excitation signals, and the red arrows show inhibition signals. The brain areas labelled are the cingulate cortex, the striatum, the ventral tegmental area (one of the body's source of dopamine), the hippocampus, the amygdala, the nucleus accumbens (which has a key inhibitory role), and the prefrontal cortex (a major source of excitation signals).
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September 15th, 2018
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