Modeling the formation process of grouping stimuli sets through cortical columns and microcircuits to feature neurons

  • Authors:
  • Frank Klefenz;Adam Williamson

  • Affiliations:
  • Division of Bio-Inspired Computing, Fraunhofer IDMT, Ilmenau, Germany;Department of Nano-Biosystem Technology, Ilmenau University of Technology, Ilmenau, Germany

  • Venue:
  • Computational Intelligence and Neuroscience
  • Year:
  • 2013

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Abstract

A computational model of a self-structuring neuronal net is presented in which repetitively applied pattern sets induce the formation of cortical columns and microcircuits which decode distinct patterns after a learning phase. In a case study, it is demonstrated how specific neurons in a feature classifier layer become orientation selective if they receive bar patterns of different slopes from an input layer. The input layer is mapped and intertwined by self-evolving neuronal microcircuits to the feature classifier layer. In this topical overview, several models are discussed which indicate that the net formation converges in its functionality to a mathematical transform which maps the input pattern space to a feature representing output space. The self-learning of the mathematical transformis discussed and its implications are interpreted. Model assumptions are deduced which serve as a guide to apply model derived repetitive stimuli pattern sets to in vitro cultures of neuron ensembles to condition them to learn and execute a mathematical transform.