منابع مشابه
Embryonic regionalization of the neocortex
Understanding the development of the vertebrate brain and in particular that of the neocortex, where high brain functions reside, remains one of the most difficult and exciting tasks in biology. In this review, we discuss recent experimental evidence as well as different possibilities for the intrinsic regionalization of the embryonic dorsal telencephalon, which may be related to the formation ...
متن کاملMolecular Regionalization of the Diencephalon
The anatomic complexity of the diencephalon depends on precise molecular and cellular regulative mechanisms orchestrated by regional morphogenetic organizers at the neural tube stage. In the diencephalon, like in other neural tube regions, dorsal and ventral signals codify positional information to specify ventro-dorsal regionalization. Retinoic acid, Fgf8, BMPs, and Wnts signals are the molecu...
متن کاملRegionalization in the mammalian telencephalon.
Regionalization in the telencephalon results in the formation of functionally and anatomically distinct territories. Cell fate analysis and gene expression studies suggest these subdivisions arise relatively late in development compared with the spinal cord or hindbrain. The mechanisms underlying the commitment of telencephalic cells to specific regional identities have been examined through re...
متن کاملSupervised Regionalization Methods: a Survey*
This paper reviews almost four decades of contributions on the subject of supervised regionalization methods. These methods aggregate a set of areas into a predefined number of spatially contiguous regions while optimizing certain aggregation criteria. The authors present a taxonomic scheme that classifies a wide range of regionalization methods into eight groups, based on the strategy applied ...
متن کاملCentral versus peripheral aspects of neuromuscular regionalization
the secondary spindle afferents. It has been shown (Binder et al. 1976; Binder & Stuart 1980a) that not only group Iaafferents but also spindle group 11 derents are responsive to a distinctive set of motor units in a muscle. Windhorst and Meyer-Lohmann (1977) suggest that synchrony in neighboring spindles is caused not only by activity in specific motor units, but perhaps also by shared gamma i...
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ژورنال
عنوان ژورنال: Miscellanea Geographica
سال: 1986
ISSN: 2084-6118
DOI: 10.2478/mgrsd-1986-020103