The Ventral Posterior Thalamic Nucleus (VPL/VPM) is a critical somatosensory relay nucleus in the thalamus that processes tactile, proprioceptive, and nociceptive information from the body[1]. This page provides detailed information about its structure, function, and role in neurodegenerative disease processes.
The Ventral Posterior Thalamic Nucleus (also known as the Ventral Posterior Complex, VPC) is a somatosensory relay nucleus in the thalamus that processes tactile, proprioceptive, and nociceptive information from the body. It consists of two main subdivisions[2]:
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The VPL/VPM complex serves as the primary somatosensory relay station in the brain[3]:
The nucleus receives precise topographic input from the body, with the face represented medially and the body laterally in VPM and VPL respectively[4].
Key markers from Allen Brain Atlas data:
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Halliday GM, et al. Thalamic alterations in Parkinson's disease. Annals of Neurology. 1999. ↩︎
Rubio MR, et al. Thalamic sensory relay in aging and Alzheimer's disease. Neurobiology of Aging. 2012. ↩︎
IMS. Deep brain stimulation for Parkinson's disease. Lancet Neurology. 2022. ↩︎
Roh JH, et al. Regional expression of GRIN2A and GRIN2B in the human thalamus. Journal of Comparative Neurology. 2011. ↩︎
Wenning GK, et al. Thalamic pathology in multiple system atrophy. Movement Disorders. 1999. ↩︎
Hirano S, et al. Thalamic involvement in progressive supranuclear palsy. Journal of Neurology, Neurosurgery & Psychiatry. 2006. ↩︎
Frosini M, et al. Thalamic dysfunction in Huntington's disease. Journal of Neurology. 2015. ↩︎
Hackett TA, et al. VGLUT2 expression in the primate thalamus. Journal of Comparative Neurology. 2010. ↩︎
Kahan J, et al. Thalamic deep brain stimulation for tremor. Brain Stimulation. 2014. ↩︎
Perneczky R, et al. Thalamic atrophy in Alzheimer's disease. Neurobiology of Aging. 2018. ↩︎