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Category:Ventral tegmental area
Abbrev VTA  +
AbbrevSource NeuroNames_abbrevSource  +
AfferentProjections Hippocampus +, Brainstem +, Prefrontal cortex +, Amygdala +, Ventral pallidum +
Comment I wanted to know whether VTA plays any rol I wanted to know whether VTA plays any role in visual circuitry. Using the NIF search engine, I found that the medial terminal nucleus (MTN) of the accessory optic system that mediates the image stabilization and ocular reflexes projects to a portion of the contralateral VTA that people have termed the visual tegmental relay zone (VTRZ). Furthermore, VTA projects to brain stem targets of the MTN (Giolli et al, J Comp Neurol, 1985). It initially took a while to get comfortable with NIF interface, but once I got used to it, I discovered that it is a very powerful website that exclusively narrows the search results to neuroscience. I searched for VTA and I clicked on the atlas and literature categories and I got my answer pretty easily. I will continue to use NIF more frequently! will continue to use NIF more frequently!
ConnDefiningCriteria The VTA sends information to various brain The VTA sends information to various brain regions along five pathways: mesolimbic, mesocortical, mesostriatal, mesodiencephalic and mesorhombencephalic. The mesolimbic and mesocortical fibers are dopaminergic, project through the medial forebrain bundle and are the major output pathways of the VTA . The mesolimbic pathway innervates the nucleus accumbens and olfactory tubercle, as well as the amygdala and hippocampus. The mesocortical pathway projects to motor, sensory, limbic and polysensory association cortices, sending the most marked input to cingulate, orbitofrontal and prefrontal cortices. The VTA also sends a minor dopaminergic projection along the mesostriatal pathway. The mesorhombencephalic and mesodiencephalic are largely non-dopaminergic, with the former contacting the cerebellum and inferior olive, and the latter projecting to several thalamic and hypothalamic nuclei. several thalamic and hypothalamic nuclei.
Created 15 July 2006  +
CurationStatus uncurated  +
CytoDefiningCriteria Researchers currently divide the VTA into Researchers currently divide the VTA into four major zones: paranigral nucleus (PN), parabrachial pigmented area (PBP), parafasciculus retroflexus area, and ventral tegmental tail (VTT). Dopamine neurons are highly concentrated in PN and PBP, whereas they are relatively sparse in parafasciculus retroflexus area and VTT. The VTA consists of dopaminergic, GABAergic and glutamatergic neurons. These neurons exhibit both widespread cortical connections as well as local connectivity. connections as well as local connectivity.
Definition Unpaired midbrain region situated in the v Unpaired midbrain region situated in the ventromedial portion of the reticular formation. The VTA is medial to the substantia nigra and ventral to the red nucleus, and extends caudally from the posterior hypothalamus in the diencephalon. The VTA contains dopamine neurons that project to various limbic and cortical areas and is a critical component of the brain's reward circuitry. component of the brain's reward circuitry.
EfferentProjections Nucleus accumbens +, Lateral Septum +, Amygdala +, Prefrontal cortex +, Hippocampus +, Locus ceruleus +, Hypothalamus +, Ventral pallidum +
Has default formThis property is a special property in this wiki. PONS brain region  +
Has role Addiction +, Motivation +, Cognition +, Attention +
Id birnlex_1415  +
Is part of Midbrain tegmentum +
Label Ventral tegmental area  +
Modification dateThis property is a special property in this wiki. 23 March 2013 00:10:46  +
ModifiedDate 23 March 2013  +
NeuronamesLink http://braininfo.rprc.washington.edu/Scripts/hiercentraldirectory.aspx?ID=512  +
Page has default formThis property is a special property in this wiki. PONS brain region  +
PartiallyOverlapsWith Dopaminergic cell group A10 +
RelatedTo Dopamine +, Reward +
Species Mammal +
SuperCategory Regional part of brain  +
Synonym ventromedial mesencephalic tegmentum  +, ventral tegmental area of Tsai  +
Umlscui C0175405  +
Categories Regional part of brain
hide properties that link here 
Nucleus accumbens +, Ventral pallidum + AfferentProjections
Ventral pallidum + EfferentProjections
Medial ventral tegmental area +, Parabrachial pigmented nucleus +, Rostral linear nucleus + Is part of
Ventral tegmental area dopamine neuron + Located in
Dopaminergic cell group A10 +, Ventral tegmental area of ABA 2009 + PartiallyOverlapsWith
 

 

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