The light response of retinal ganglion cells is truncated by a displaced amacrine circuit Academic Article uri icon

Overview

MeSH Major

  • Light
  • Retina
  • Retinal Ganglion Cells

abstract

  • The vertebrate retina contains ganglion cells that appear to be specialized for detecting temporal changes. The characteristic response of these cells is a transient burst of action potentials when a stationary image is presented or removed, and often a strong discharge to moving images. These transient and motion-sensitive responses are thought to result from processing in the inner retina that involves amacrine cells, but the critical interactions have been difficult to reveal. Here, we used a cell-ablation technique to remove a subpopulation of amacrine cells from the mouse retina. Their ablation changed transient ganglion cell responses into prolonged discharges. This suggests that transient responses are generated, at least in part, by a truncation of sustained excitatory input to the ganglion cells and that the ablated amacrine cells are critical for this process.

publication date

  • April 1997

Research

keywords

  • Academic Article

Identity

Language

  • eng

PubMed ID

  • 9136772

Additional Document Info

start page

  • 637

end page

  • 50

volume

  • 18

number

  • 4