Extrastriatal dopaminergic circuits of the basal ganglia

The basal ganglia are comprised of the striatum, the external and internal segment of the globus pallidus (GPe and GPi, respectively), the subthalamic nucleus (STN), and the substantia nigra pars compacta and reticulata (SNc and SNr, respectively). Dopamine has long been identified as an important...

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Main Authors: Karen Suzanne Rommelfanger, Thomas eWichmann
Format: Article
Language:English
Published: Frontiers Media S.A. 2010-10-01
Series:Frontiers in Neuroanatomy
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fnana.2010.00139/full
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author Karen Suzanne Rommelfanger
Thomas eWichmann
Thomas eWichmann
author_facet Karen Suzanne Rommelfanger
Thomas eWichmann
Thomas eWichmann
author_sort Karen Suzanne Rommelfanger
collection DOAJ
description The basal ganglia are comprised of the striatum, the external and internal segment of the globus pallidus (GPe and GPi, respectively), the subthalamic nucleus (STN), and the substantia nigra pars compacta and reticulata (SNc and SNr, respectively). Dopamine has long been identified as an important modulator of basal ganglia function in the striatum, and disturbances of striatal dopaminergic transmission have been implicated in diseases such as Parkinson’s disease, addiction and attention deficit hyperactivity disorder. However, recent evidence suggests that dopamine may also modulate basal ganglia function at sites outside of the striatum, and that changes in dopaminergic transmission at these sites may contribute to the symptoms of Parkinson’s disease and other neuropsychiatric disorders. This review summarizes the current knowledge of the anatomy, functional effects and behavioral consequences of the dopaminergic innervation to the GPe, GPi, STN, and SNr. Further insights into the dopaminergic modulation of basal ganglia function at extrastriatal sites may provide us with opportunities to develop new and more specific strategies for treating disorders of basal ganglia dysfunction.
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spelling doaj.art-db03cbc8ace146c0a8446f8365e4da602022-12-21T21:04:00ZengFrontiers Media S.A.Frontiers in Neuroanatomy1662-51292010-10-01410.3389/fnana.2010.001396976Extrastriatal dopaminergic circuits of the basal gangliaKaren Suzanne Rommelfanger0Thomas eWichmann1Thomas eWichmann2Emory UniversityEmory UniversityEmory UniversityThe basal ganglia are comprised of the striatum, the external and internal segment of the globus pallidus (GPe and GPi, respectively), the subthalamic nucleus (STN), and the substantia nigra pars compacta and reticulata (SNc and SNr, respectively). Dopamine has long been identified as an important modulator of basal ganglia function in the striatum, and disturbances of striatal dopaminergic transmission have been implicated in diseases such as Parkinson’s disease, addiction and attention deficit hyperactivity disorder. However, recent evidence suggests that dopamine may also modulate basal ganglia function at sites outside of the striatum, and that changes in dopaminergic transmission at these sites may contribute to the symptoms of Parkinson’s disease and other neuropsychiatric disorders. This review summarizes the current knowledge of the anatomy, functional effects and behavioral consequences of the dopaminergic innervation to the GPe, GPi, STN, and SNr. Further insights into the dopaminergic modulation of basal ganglia function at extrastriatal sites may provide us with opportunities to develop new and more specific strategies for treating disorders of basal ganglia dysfunction.http://journal.frontiersin.org/Journal/10.3389/fnana.2010.00139/fullBasal GangliaDopamineGlobus PallidusSubstantia NigraSubthalamic NucleusGABA
spellingShingle Karen Suzanne Rommelfanger
Thomas eWichmann
Thomas eWichmann
Extrastriatal dopaminergic circuits of the basal ganglia
Frontiers in Neuroanatomy
Basal Ganglia
Dopamine
Globus Pallidus
Substantia Nigra
Subthalamic Nucleus
GABA
title Extrastriatal dopaminergic circuits of the basal ganglia
title_full Extrastriatal dopaminergic circuits of the basal ganglia
title_fullStr Extrastriatal dopaminergic circuits of the basal ganglia
title_full_unstemmed Extrastriatal dopaminergic circuits of the basal ganglia
title_short Extrastriatal dopaminergic circuits of the basal ganglia
title_sort extrastriatal dopaminergic circuits of the basal ganglia
topic Basal Ganglia
Dopamine
Globus Pallidus
Substantia Nigra
Subthalamic Nucleus
GABA
url http://journal.frontiersin.org/Journal/10.3389/fnana.2010.00139/full
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