A Complex Network Approach to Topographical Connections

Physics – Condensed Matter – Disordered Systems and Neural Networks

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

5 pages, 5 figures

Scientific paper

10.1103/PhysRevE.71.021901

The neuronal networks in the mammals cortex are characterized by the coexistence of hierarchy, modularity, short and long range interactions, spatial correlations, and topographical connections. Particularly interesting, the latter type of organization implies special demands on the evolutionary and ontogenetic systems in order to achieve precise maps preserving spatial adjacencies, even at the expense of isometry. Although object of intensive biological research, the elucidation of the main anatomic-functional purposes of the ubiquitous topographical connections in the mammals brain remains an elusive issue. The present work reports on how recent results from complex network formalism can be used to quantify and model the effect of topographical connections between neuronal cells over a number of relevant network properties such as connectivity, adjacency, and information broadcasting. While the topographical mapping between two cortical modules are achieved by connecting nearest cells from each module, three kinds of network models are adopted for implementing intracortical connections (ICC), including random, preferential-attachment, and short-range networks. It is shown that, though spatially uniform and simple, topographical connections between modules can lead to major changes in the network properties, fostering more effective intercommunication between the involved neuronal cells and modules. The possible implications of such effects on cortical operation are discussed.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A Complex Network Approach to Topographical Connections does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Complex Network Approach to Topographical Connections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Complex Network Approach to Topographical Connections will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-243483

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.