Multiscale modeling of brain dynamics depends upon approximations at each scale

Behavioral and Brain Sciences 19 (2):310-320 (1996)
  Copy   BIBTEX

Abstract

We outline fresh findings that show that our macroscopic electrocorticographic (ECoG) simulations can account for synchronous multiunit pulse oscillations at separate, simultaneously activated cortical sites and the associated gamma-band ECoG activity. We clarify our views on the approximations of dynamic class applicable to neural events at macroscopic and microscopic scales, and the analogies drawn to classes of ANN behaviour. We accept the need to introduce memory processes and detailed anatomical and physiological information into any future developments of our simulations. On the issue of intrinsic cortical stability and the role of extrinsic fibre systems in maintaining stability, we argue that this position is not in extreme contradiction to those of our commentators, and that the mechanisms implicit in our simulations' properties imply rich computational possibilities. We discuss some of the reasons for and against the existence of significant global resonances in the brain and explain why such behaviour appears absent in our simulations. Last, we discuss other phenomena, such as rhythmic driving of the cortex, which have not yet been introduced into our models, and indicate lines for future development of the simulations.

Links

PhilArchive



    Upload a copy of this work     Papers currently archived: 90,616

External links

Setup an account with your affiliations in order to access resources via your University's proxy server

Through your library

Similar books and articles

Multiscale Integration in Scale Relativity Theory.Laurent Nottale - 2011 - Foundations of Science 16 (4):307-309.
Multiscale Analysis of Biological Systems.Annick Lesne - 2013 - Acta Biotheoretica 61 (1):3-19.
Brain dynamics: Modeling the whole brain in action.J. J. Wright - 2000 - In Evian Gordon (ed.), Integrative Neuroscience. Harwood Academic Publishers.
Approximations and truth spaces.Jean-Pierre Marquis - 1991 - Journal of Philosophical Logic 20 (4):375 - 401.
Interscale interactions in cortical neural networks.Hans Liljenström - 2000 - Behavioral and Brain Sciences 23 (3):408-409.

Analytics

Added to PP
2014-01-20

Downloads
19 (#683,238)

6 months
2 (#670,035)

Historical graph of downloads
How can I increase my downloads?

Author's Profile

John Wright
Central Michigan University

Citations of this work

No citations found.

Add more citations