Distributions of single neurons related to body parts in the lateral striatum of the rat

Brain Research
J Cho, M O West

Abstract

Single unit recordings in awake, unrestrained rats confirmed and extended previous findings regarding the functional organization of the lateral striatum. In individual electrode tracks, clusters of neurons related functionally to an individual body part were interspersed with clusters related to other body parts. The overlapping distributions of these neurons were arranged somatotopically in the dorsal-ventral dimension. The distribution of hind limb neurons was most dorsal and showed no overlap with the distribution of neurons related to oral sensorimotor activity. Oral representation was most ventral of all body parts and extended to the ventral boundary of the lateral striatum. Representations of other body parts overlapped with that of the hind limb dorsally but differed primarily in the degree to which they extended ventrally. Forelimb representation extended farther ventrally than that of the hind limb, but did not extend as far ventrally as that of the neck. Despite substantial overlap in the dorsal-to-ventral order of hind limb-forelimb-neck-face representations, single neurons showed no evidence of overlap, or convergence, of body parts. These data provide a more complete description of the dorsal-ventral somatotopy i...Continue Reading

Citations

Apr 2, 2011·Psychopharmacology·David H RootMark O West
Dec 26, 2001·Brain Research. Brain Research Reviews·G D PetrovichL W Swanson
Jun 5, 2012·Nature·Yevgenia KozorovitskiyBernardo L Sabatini
Nov 10, 2007·The Journal of Pharmacology and Experimental Therapeutics·Chengke TangMark O West
Nov 6, 2009·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Chris C TangMark O West
Feb 12, 2013·Behavioural Brain Research·Sisi MaMark O West
Dec 20, 2011·Behavioural Brain Research·Kelly E GlajchPavel Osten
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Jan 27, 2015·Nature Neuroscience·Pavel E Rueda-Orozco, David Robbe
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May 11, 2019·Proceedings of the National Academy of Sciences of the United States of America·Meng-Jun ShengMu-Ming Poo
Mar 3, 2007·The European Journal of Neuroscience·Chengke TangMark O West

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