somatotopically

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somatotopic

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/06/15 02:40:02」(JST)

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Postcentral gyrus sensory homunculus

Somatotopy is the point-for-point correspondence of an area of the body to a specific point on the central nervous system. Typically, the area of the body corresponds to a point on the primary somatosensory cortex (postcentral gyrus). This cortex is typically represented as a sensory homunculus which orients the specific body parts and their respective locations upon the homunculus. Areas such as the appendages, digits, penis, and face can draw their sensory locations upon the somatosensory cortex. The areas which are finely controlled (e.g., the digits) have larger portions of the somatosensory cortex whereas areas which are coarsely controlled (e.g., the trunk) have smaller portions. Areas such as the viscera do not have sensory locations on the post central gyrus.

See also

• Retinotopy
• Topographic map (Neuroanatomy)
• Cortical homunculus

References

UpToDate Contents

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• 1. 脊髄障害の解剖学および局在性anatomy and localization of spinal cord disorders [show details]
  …ventral commissure and therefore contain contralateral sensory representation. This tract is somatotopically organized with cervical inputs located most medially and sacral inputs most laterally The corticospinal …
• 2. 感覚消失患者へのアプローチapproach to the patient with sensory loss [show details]
  …cortex in the parietal lobe As with the motor cortex, the primary sensory cortex is arranged somatotopically, with the face represented laterally, close to the Sylvian fissure. The hand and arm are represented…

English Journal

• Laser-evoked cortical responses in freely-moving rats reflect the activation of C-fibre afferent pathways.

• Xia XL1, Peng WW1, Iannetti GD2, Hu L3.
• NeuroImage.Neuroimage.2016 Mar;128:209-17. doi: 10.1016/j.neuroimage.2015.12.042. Epub 2015 Dec 30.
• The limited success of translating basic animal findings into effective clinical treatments of pain can be partly ascribed to the use of sub-optimal models. Murine models of pain often consist in recording (1) threshold responses (like the tail-flick reflex) elicited by (2) non-nociceptive specific
• PMID 26747747

• Neuronal Responses to Tactile Stimuli and Tactile Sensations evoked by Microstimulation in the Human Thalamic Principle Somatic Sensory Nucleus - Ventral caudal.

• Schmid AC1, Chien JH2, Greenspan JD3, Garonzik I4, Weiss N1, Ohara S5, Lenz FA6.
• Journal of neurophysiology.J Neurophysiol.2016 Feb 10:jn.00611.2015. doi: 10.1152/jn.00611.2015. [Epub ahead of print]
• The normal organization and plasticity of the cutaneous core of the thalamic principal somatosensory nucleus (ventral caudal, Vc) have been studied by single neuron recordings and microstimulation in patients undergoing awake stereotactic operations for essential tremor (ET) without apparent somatic
• PMID 26864759

• A somatotopic map of the active electrosensory sense in the midbrain of the mormyrid Gnathonemus petersii.

• Hollmann V1, Hofmann V1,2, Engelmann J1.
• The Journal of comparative neurology.J Comp Neurol.2016 Jan 18. doi: 10.1002/cne.23963. [Epub ahead of print]
• In many vertebrates parallel processing in topographically ordered maps is essential for efficient sensory processing. In the active electrosensory pathway of mormyrids afferent input is processed in two parallel somatotopically ordered hindbrain maps of the electrosensory lateral line lobe (ELL), t
• PMID 26780193

Japanese Journal

• Information processing from the motor cortices to the subthalamic nucleus and globus pallidus and their somatotopic organizations revealed electrophysiologically in monkeys

• Iwamuro Hirokazu,Tachibana Yoshihisa,Ugawa Yoshikazu,Saito Nobuhito,Nambu Atsushi
• European Journal of Neuroscience 46(11), 2684-2701, 2017-12
• … These observations suggest that the somatotopically organized inputs from the MI and SMA are well preserved in the STN and GPe/GPi with partial convergence. …
• NAID 120006456930

• Functional Localization of the Supplementary Motor Area

• HIROSHIMA Satoru,ANEI Ryogo,MURAKAMI Noboru,KAMADA Kyousuke
• Neurologia medico-chirurgica 54(7), 511-520, 2014
• … Although many reports have indicated that SMA is organized somatotopically, its exact organization remains still unclear. …
• NAID 130003383282

• 顎顔面の運動神経細胞の脳内分布，および味覚の神経回路

• 植村 正憲,薗村 貴弘,岩井 治樹,山中 淳之
• 鹿児島大学歯学部紀要 (33), 3-17, 2013
• … In the relationships, the comparative anatomical investigations of many mammals generally shown as follow: A lateral-medial arrangements of the mononeurons in the trigeminal motor nucleus, the facial nucleus, and the hypoglossal nucleus somatotopically corresponded to lateral-medial position in the masticatory muscles, anterior-posterior in the facial mimetic muscles, and medial-lateral in the lingual muscles. …
• NAID 120005324755

Related Links

• Somatotopic | definition of somatotopic by Medical dictionary

Dorsal horn neurons send noxious signals supraspinally to subcortical nuclei involved in the sensory-discriminatory aspects of pain perception, such as the thalamus, which, in turn, sends projections to cortical nuclei such as ...

• Somatotopic Medical Definition | Merriam-Webster Medical ...

Medical definition of somatotopic: of, relating to, or mediating the orderly and specific relation between particular body regions (as a hand or the tongue) and corresponding motor areas of the brain.

• 第4章．脊髄への下行路．大脳基底核 - Actioforma

It is somatotopically arranged. The medial vestibulospinal tract is derived from rthe medial vestibular nucleus (M) and does not reach the lumbar cord. B: The somatotopic pattern in a sagittal reconstruction of the nucleus (below ...

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