Billingsley and Ranson ('18) counted the myelinated nerve fibers in the cervical sympathetic trunk and related their number to the number of cells in the superior cervical ganglion. The resulting ratio of preganglionic fibers to postganglionic cells was approximately one to thirty-two. This observat
Construction of concepts by the nervous system: From neurons to cognition
β Scribed by G. Werner; H. J. Reitboeck; R. Eckhorn
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 728 KB
- Volume
- 38
- Category
- Article
- ISSN
- 8756-6079
No coin nor oath required. For personal study only.
β¦ Synopsis
Neurophysiological studies have recently identified a pattern of synchronized slow-wave activity in the visual cortex which characteristically encompasses groups of neurons activated by similar or closely related stimulus attributes. This slow-wave activity appears to tag clusters of neurons to form aggregates representing in their totality more complex, higher-order stimulus attributes across dieparate positions in the cortical representation. The notion is advanced that the function of these aggregates is analogous to that ascribed to the subsymbolic computational level in connectionist networks. On this basis, the argument i s presented that the synchronized cortical activity is an important aspect of the construction of symbolic representation by the nervous system and, thus, a step from neural information processing to the symbolic processes stipulated by classical cognitivism.
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