What the Frog's Eye Tells the Frog's Brain

@article{Lettvin1959WhatTF,
  title={What the Frog's Eye Tells the Frog's Brain},
  author={J. Lettvin and H. Maturana and W. McCulloch and W. Pitts},
  journal={Proceedings of the IRE},
  year={1959},
  volume={47},
  pages={1940-1951}
}
In this paper, we analyze the activity of single fibers in the optic nerve of a frog. Our method is to find what sort of stimulus causes the largest activity in one nerve fiber and then what is the exciting aspect of that stimulus such that variations in everything else cause little change in the response. It has been known for the past 20 years that each fiber is connected not to a few rods and cones in the retina but to very many over a fair area. Our results show that for the most part… Expand

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References

SHOWING 1-10 OF 37 REFERENCES
Discharge patterns and functional organization of mammalian retina.
TLDR
The Limulus preparation shows many features which are similar to other simple sense organs, for instance, stretch receptors, however, instead of photochemical events, stretch-deformation acts as the adequate stimulus on sensory terminals and is translated into a characteristic discharge pattern. Expand
THE RECEPTIVE FIELDS OF OPTIC NERVE FIBERS
Appreciation of the form of the retinal image depends upon a correspondence between the distribution of light on the retina and the distribution of activity among the fibers of the optic nerve. ThisExpand
RETINAL MECHANISMS FOR CHROMATIC AND ACHROMATIC VISION
TLDR
The general characteristics of the g.p.r. of the retina are described, and a number of observations in neurophysiological terms are discussed. Expand
Number of Fibres in the Optic Nerve and the Number of Ganglion Cells in the Retina of Anurans
TLDR
I have found that the unmedullated axons are in a considerably larger number, having been underestimated by a factor of 30 or more, and that most of them could not have been resolved with the light microscope. Expand
How we know universals; the perception of auditory and visual forms.
Two neural mechanisms are described which exhibit recognition of forms. Both are independent of small perturbations at synapses of excitation, threshold, and synchrony, and are referred to partiularExpand
Evidence That Cut Optic Nerve Fibers in a Frog Regenerate to Their Proper Places in the Tectum
The frog's retina projects into the superficial neuropil of the opposite tectum in four functionally different layers of terminals. Each layer displays a continuous map of the retina in terms of itsExpand
J. Physiol
  • J. Physiol
  • 1959
Physiological evidence that cut optic nerve fibers in the frog regenerate to their proper places in the tectum
  • Regeneration of the optic nerve in Xenopus laevi
  • 1959
Regeneration of the optic nerve in Xenopus laevis.
  • R. M. Gaze
  • Biology, Medicine
  • Quarterly journal of experimental physiology and cognate medical sciences
  • 1959
Action potentials from the frog colliculus The Fine Structure of the Optic Nerve and Tectum of Anurans
  • An Electron Microscope Study
  • 1958
...
1
2
3
4
...