Abstract
The globus pallidus (internal segment, GPi) is traditionally regarded as part of the motor system. In this issue of Neuron, Hong and Hikosaka report on a little known projection from the monkey GPi to the lateral habenula that is modulated by reward. This adds an important branch to the brain's reward circuitry.
MeSH terms
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Animals
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Dopamine / metabolism
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Emotions / physiology*
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Globus Pallidus / anatomy & histology
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Globus Pallidus / physiology*
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Habenula / anatomy & histology
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Habenula / physiology*
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Humans
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Neural Pathways / anatomy & histology
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Neural Pathways / physiology
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Neurotransmitter Agents / metabolism
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Reinforcement, Psychology
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Reward*
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Ventral Tegmental Area / anatomy & histology
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Ventral Tegmental Area / physiology
Substances
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Neurotransmitter Agents
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Dopamine