Edge Detection and Motion Discrimination in the Cuneate Nucleus

  • Eduardo Sánchez
  • S. Barro
  • A. Canedo
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2415)


In this paper we investigate how the cuneate nucleus could perform edge detection as well as motion discrimination by means of a single layer of multi-threshold cuneothalamic neurons. A well-known center-surround receptive field organization is in charge of edge detection, whereas single neuronal processing integrates inhibitory and excitatory inputs over time to discriminate dynamic stimuli. The simulations show how lateral inhibition determines a sensitized state in neighbouring neurons which respond to dynamic patterns with a burst of spikes.


Edge Detection Lateral Inhibition Synaptic Weight Excitatory Input Directional Selectivity 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Eduardo Sánchez
    • 1
  • S. Barro
    • 1
  • A. Canedo
    • 2
  1. 1.Grupo de Sistemas Intelixentes (GSI) Departamento de Electrónica e Computación, Facultade de FísicasUniversidade de Santiago de CompostelaSantiago de CompostelaSpain
  2. 2.Departamento de Fisioloxía, Facultade de MedicinaUniversidade de Santiago de CompostelaSantiago de CompostelaSpain

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