منابع مشابه
NMDA Receptor-Dependent Refinement of Somatotopic Maps
We have examined the role of NMDA receptor-mediated neural activity in the formation of periphery-related somatosensory patterns, using genetically engineered mice. We demonstrate that ectopic expression of a transgene of an NMDAR1 splice variant rescues neonatally fatal NMDAR1 knockout (KO) mice, although the average life span varies depending on the level of the transgene expression. In NMDAR...
متن کاملThe Emergence of Somatotopic Maps of the Body in S1 in Rats: The Correspondence Between Functional and Anatomical Organization
Most of what we know about cortical map development and plasticity comes from studies in mice and rats, and for the somatosensory cortex, almost exclusively from the whisker-dominated posteromedial barrel fields. Whiskers are the main effector organs of mice and rats, and their representation in cortex and subcortical pathways is a highly derived feature of murine rodents. This specialized anat...
متن کاملLifting default for S1-valued maps
Let ' 2 C1([0, 1]N ,R). When 0 < s < 1, p 1 and 1 sp < N , the W s,p-semi-norm |'|W s,p of ' is not controlled by |g|W s,p , where g := eı' [3]. [This question is related to existence, for S1-valued maps g, of a lifting ' as smooth as allowed by g.] In [4], the authors suggested that |g|W s,p does control a weaker quantity, namely |'|W s,p+W 1,sp . Existence of such control is due to J. Bourg...
متن کاملSomatotopic representation of pain in the primary somatosensory cortex (S1) in humans.
OBJECTIVE In contrast to tactile inputs, the organization and processing of nociceptive inputs in the primary somatosensory cortex (S1) remain largely unexplored. Few studies have examined the arrangement of nociceptive inputs in S1. The aim of this study was to investigate the representation of nociceptive inputs in the human cortex, including the somatosensory and posterior parietal cortices,...
متن کاملApplications of Degree for S1-equivariant Gradient Maps to Variational Nonlinear Problems with S1-symmetries S
There are developed many topological methods which are powerful tools in the theory of critical points of functionals; see for example [2], [3], [5], [6], [9], [13]–[20], [22]–[25], [27]–[29], [32], [33], [43]–[45], [47], [48], [51], [59]. It happens quite often that functionals whose critical points are important in the theory of differential equations are invariant under an action of a compac...
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ژورنال
عنوان ژورنال: Scholarpedia
سال: 2015
ISSN: 1941-6016
DOI: 10.4249/scholarpedia.8574