Intracortical and Thalamocortical Connections of the Hand and Face Representations in Somatosensory Area 3b of Macaque Monkeys and Effects of Chronic Spinal Cord Injuries.
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Cites background or methods from "Intracortical and Thalamocortical C..."
...…of all the digits in area 3b of macaque monkeys, there are no differences in the density of Meissner’s corpuscles, tactile sensitivity, or receptive field sizes of neurons between the thumb and other digits (Chand and Jain 2015; Verendeev et al. 2015; Sathian and Zangaladze 1996; Sur et al. 1980)....
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...A second series of sections were stained for myelin using a modified Gallyas procedure (Jain et al. 1998) to visualize area 3b, the hand-face border, and the inter-digit borders (Chand and Jain 2015)....
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...6; Jain et al. 1998), which we have previously shown to reveal anatomical borders between the digits, and between D1 and the face representations (Chand and Jain 2015)....
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...Only neurons determined to be in the hand representation of area 3b were considered for quantitative analysis (Chand and Jain 2015)....
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...1998) to visualize area 3b, the hand-face border, and the inter-digit borders (Chand and Jain 2015)....
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References
1,862 citations
"Intracortical and Thalamocortical C..." refers methods in this paper
...Other series of sections were stained for cytochrome oxidase (CO) (Wong-Riley, 1979), Nissl substance and AChE (Mohammed and Jain, 2014)....
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1,051 citations
"Intracortical and Thalamocortical C..." refers background in this paper
...…such as transection of the dorsal columns (10 –14 mm, and sometimes more that 20 mm, Jain et al., 2008) or transection of dorsal roots (Pons et al., 1991), is beyond what can be mediated by normal connections in the brain, reorganization must involve axonal sprouting (Kaas et al.,…...
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...We extend these observations and show that chin representation also has only few connections across the hand– face border, which is important because it is the chin representation that expands as a result of massive deafferentations (Pons et al., 1991; Jain et al., 1997, 2008)....
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...…at multiple sites along the somatosensory pathway, it has been proposed that reorganization could take place at all these sites independently, or changes at upstream areas could be a reflection of the downstream reorganization (Pons et al., 1991; Kaas et al., 1999; Jones, 2000; Kambi et al., 2014)....
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...Similar reorganization in area 3b is also seen in monkeys with chronic transection of the dorsal roots from C2 to T4 (Pons et al., 1991)....
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665 citations
"Intracortical and Thalamocortical C..." refers background in this paper
...tral premotor cortex after M1 lesions (Dancause et al., 2005)....
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...Axonal sprouting in the cortex has been reported following limb amputations (Florence et al., 1998), focal retinal lesions (Darian-Smith and Gilbert, 1994), and cortical injuries (Dancause et al., 2005)....
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...And in the motor cortex of adult squirrel monkeys, novel terminal fields were observed in ventral premotor cortex after M1 lesions (Dancause et al., 2005)....
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..., 1998), focal retinal lesions (Darian-Smith and Gilbert, 1994), and cortical injuries (Dancause et al., 2005)....
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...…between the hand and the face representations appears to be a strong limiting boundary that does not permit sprouting across, unlike that seen within the hand representation or other cortical areas following injuries (Darian-Smith and Gilbert, 1994; Florence et al., 1998; Dancause et al., 2005)....
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608 citations
"Intracortical and Thalamocortical C..." refers background in this paper
...Axonal sprouting in the cortex has been reported following limb amputations (Florence et al., 1998), focal retinal lesions (Darian-Smith and Gilbert, 1994), and cortical injuries (Dancause et al., 2005)....
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...Sprouting was also seen in the primary visual cortex of animals with retinal lesions (Darian-Smith and Gilbert, 1994; Yamahachi et al., 2009)....
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...…between the hand and the face representations appears to be a strong limiting boundary that does not permit sprouting across, unlike that seen within the hand representation or other cortical areas following injuries (Darian-Smith and Gilbert, 1994; Florence et al., 1998; Dancause et al., 2005)....
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433 citations
"Intracortical and Thalamocortical C..." refers background in this paper
...They show species specificity (e.g., Van Hooser et al., 2006) and are altered by cross-modal circuit manipulation dur- ing development, reflecting an organization consistent with the new inputs (Gao and Pallas, 1999; Sharma et al., 2000)....
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...ing development, reflecting an organization consistent with the new inputs (Gao and Pallas, 1999; Sharma et al., 2000)....
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