The effect of stimulus velocity on the response of movement sensitive neurons of the frog's retina

O. J. Grüsser, Daniel Finkelstein, U. Grüsser-Cornehls

Research output: Contribution to journalArticle

Abstract

1. By means of metal-filled micropipettes the action potentials of 4 different classes of optic nerve fibers were recorded in Rana esculenta. The relationship between the angular velocity of the stimuli and the neuronal response was determined. 2. If an object smaller than the excitatory receptive field (ERF) was moved through the receptive field of the different classes of retinal units the response depended on the angular velocity, contrast and size of the stimulus. The response was measured as the average impulses frequency (R) during the traverse of the ERF. Between R and the angular velocity (v) the equation R=k·vc [impulses · sec-1] was found. The exponent c was 0.5 for class 1 neurons, 0.7 for class 2 neurons, and 0.95 for class 3 neurons. In class 4 neurons the response to large stimuli increased linearly with the increase of the angular velocity, while no systematic relationship between R and v was valid for small moving stimuli (

Original languageEnglish (US)
Pages (from-to)49-66
Number of pages18
JournalPflügers Archiv für die Gesamte Physiologie des Menschen und der Tiere
Volume300
Issue number2
DOIs
StatePublished - Jun 1968
Externally publishedYes

Fingerprint

Angular velocity
Anura
Neurons
Retina
Rana esculenta
Optic Nerve
Nerve Fibers
Action Potentials
Optics
Metals
Fibers

Keywords

  • Frog
  • Movement Detectors
  • Retina

ASJC Scopus subject areas

  • Physiology
  • Medicine(all)

Cite this

The effect of stimulus velocity on the response of movement sensitive neurons of the frog's retina. / Grüsser, O. J.; Finkelstein, Daniel; Grüsser-Cornehls, U.

In: Pflügers Archiv für die Gesamte Physiologie des Menschen und der Tiere, Vol. 300, No. 2, 06.1968, p. 49-66.

Research output: Contribution to journalArticle

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