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Local active information storage as a tool to understand distributed neural information processing.

Wibral, Michael and Lizier, Joseph T. and Vögler, Sebastian and Priesemann, Viola and Galuske, Ralf A. W. (2014):
Local active information storage as a tool to understand distributed neural information processing.
In: Frontiers in neuroinformatics, p. 1, 8, ISSN 1662-5196, [Article]

Abstract

Every act of information processing can in principle be decomposed into the component operations of information storage, transfer, and modification. Yet, while this is easily done for today's digital computers, the application of these concepts to neural information processing was hampered by the lack of proper mathematical definitions of these operations on information. Recently, definitions were given for the dynamics of these information processing operations on a local scale in space and time in a distributed system, and the specific concept of local active information storage was successfully applied to the analysis and optimization of artificial neural systems. However, no attempt to measure the space-time dynamics of local active information storage in neural data has been made to date. Here we measure local active information storage on a local scale in time and space in voltage sensitive dye imaging data from area 18 of the cat. We show that storage reflects neural properties such as stimulus preferences and surprise upon unexpected stimulus change, and in area 18 reflects the abstract concept of an ongoing stimulus despite the locally random nature of this stimulus. We suggest that LAIS will be a useful quantity to test theories of cortical function, such as predictive coding.

Item Type: Article
Erschienen: 2014
Creators: Wibral, Michael and Lizier, Joseph T. and Vögler, Sebastian and Priesemann, Viola and Galuske, Ralf A. W.
Title: Local active information storage as a tool to understand distributed neural information processing.
Language: English
Abstract:

Every act of information processing can in principle be decomposed into the component operations of information storage, transfer, and modification. Yet, while this is easily done for today's digital computers, the application of these concepts to neural information processing was hampered by the lack of proper mathematical definitions of these operations on information. Recently, definitions were given for the dynamics of these information processing operations on a local scale in space and time in a distributed system, and the specific concept of local active information storage was successfully applied to the analysis and optimization of artificial neural systems. However, no attempt to measure the space-time dynamics of local active information storage in neural data has been made to date. Here we measure local active information storage on a local scale in time and space in voltage sensitive dye imaging data from area 18 of the cat. We show that storage reflects neural properties such as stimulus preferences and surprise upon unexpected stimulus change, and in area 18 reflects the abstract concept of an ongoing stimulus despite the locally random nature of this stimulus. We suggest that LAIS will be a useful quantity to test theories of cortical function, such as predictive coding.

Journal or Publication Title: Frontiers in neuroinformatics
Volume: 8
Divisions: 10 Department of Biology
10 Department of Biology > Systems Neurophysiology
Date Deposited: 11 Feb 2014 12:37
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