期刊
BASAL GANGLIA
卷 1, 期 4, 页码 191-200出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.baga.2011.08.003
关键词
Dopamine; Ventral tegmental area; Substantia nigra compacta; Drug abuse; Reward
资金
- USPHS [NIH NS-23805]
The mesopontine rostromedial tegmental nucleus (RMTg) is a newly discovered brain structure thought to profoundly influence reward-related pathways. The RMTg is prominently GABAergic, receives dense projections from the lateral habenula and projects strongly to the midbrain ventral tegmental area and substantia nigra compacta. It receives additional afferent connections from widespread brain structures and sends additional strong efferent connections to a number of non-dopaminergic brainstem structures and, to a lesser extent, the forebrain. Projection neurons of the RMTg have been shown to express Fos in response to aversive stimuli and/or reward omission and psychostimulant drug administration. This review will first recount how the RMTg was discovered and then describe in greater detail what is known about its neuroanatomical relationships, including afferent and efferent connections, neurotransmitters, and receptors. Finally, we will focus on what has been reported about its function. (C) 2011 Elsevier GmbH. All rights reserved.
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