Lag normalization in an electrically coupled neural network

Nat Neurosci. 2013 Feb;16(2):154-6. doi: 10.1038/nn.3308. Epub 2013 Jan 13.

Abstract

Moving objects can cover large distances while they are processed by the eye, usually resulting in a spatially lagged retinal response. We identified a network of electrically coupled motion-coding neurons in mouse retina that act collectively to register the leading edges of moving objects at a nearly constant spatial location, regardless of their velocity. These results reveal a previously unknown neurophysiological substrate for lag normalization in the visual system.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Action Potentials / drug effects
  • Action Potentials / physiology*
  • Animals
  • Biophysics
  • Electric Stimulation
  • Excitatory Postsynaptic Potentials / drug effects
  • Excitatory Postsynaptic Potentials / physiology
  • Gap Junctions / drug effects
  • Gap Junctions / physiology*
  • Glycyrrhetinic Acid / pharmacology
  • Green Fluorescent Proteins / genetics
  • Green Fluorescent Proteins / metabolism
  • Homeodomain Proteins / genetics
  • Mice
  • Mice, Inbred C57BL
  • Mice, Transgenic
  • Models, Neurological
  • Motion Perception / physiology*
  • Neurons / drug effects
  • Neurons / physiology*
  • Patch-Clamp Techniques
  • Photic Stimulation
  • Reaction Time / physiology
  • Retina / cytology
  • Space Perception / physiology
  • Transcription Factors / genetics
  • Visual Pathways / drug effects
  • Visual Pathways / physiology*

Substances

  • Homeodomain Proteins
  • Transcription Factors
  • enhanced green fluorescent protein
  • Hb9 protein, mouse
  • Green Fluorescent Proteins
  • Glycyrrhetinic Acid