منابع مشابه
Cortical Maps.
In this article, we review functional organization in sensory cortical regions-how the cortex represents the world. We consider four interrelated aspects of cortical organization: (1) the set of receptive fields of individual cortical sensory neurons, (2) how lateral interaction between cortical neurons reflects the similarity of their receptive fields, (3) the spatial distribution of receptive...
متن کاملPattern formation and cortical maps.
The response selectivities of neurons in adult primary sensory cortices depend on intricate patterns of synaptic connections; these selectivities are arranged over cortex in equally rich fashion. Characterising these patterns, and particularly the activity-dependence (and independence) of their developmental trajectories, has been a major task for experimental and theoretical neuroscience. Here...
متن کاملTopology of Visual Cortical Maps
It has been reported that in the primary visual cortex, there are maps with respect to the neuron’s optimal response parameters to light stimuli. The objective of the present paper is to present a new mathematical approach to the understanding of topological properties of visual cortical maps. I postulate that the optimal stimulus parameters are arranged continuously almost everywhere on the th...
متن کاملCultural Recycling of Cortical Maps
Part of human cortex is specialized for cultural domains such as reading and arithmetic, whose invention is too recent to have influenced the evolution of our species. Representations of letter strings and of numbers occupy reproducible locations within large-scale macromaps, respectively in the left occipito-temporal and bilateral intraparietal cortex. Furthermore, recent fMRI studies reveal a...
متن کاملPhase maps reveal cortical architecture.
Bruce Fischl*†‡§ and Lawrence L. Wald*† *Athinoula A. Martinos Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129; †Harvard–Massachusetts Institute of Technology Division of Health Sciences and Technology, Cambridge, MA 02139; and ‡Massachusetts Institute of Technology Computer Science and Artificial Intelligence Laboratory, Cambridge,...
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ژورنال
عنوان ژورنال: Nature
سال: 1990
ISSN: 0028-0836,1476-4687
DOI: 10.1038/346024c0