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Retinal responses in squid and octopus (1974)

Lange, G. David ; Hartline, Peter H.

Springer

Journal of comparative physiology 93 (1974), S. 19-36

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ISSN: 1432-1351

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Summary Electroretinogram and optic nerve impulse recordings from an isolated eye-optic lobe preparation of squid and octopus show: 1) linear and nonlinear responses to modulated light; 2) facilitation of retinal and optic nerve responses to pairs and trains of suitably spaced brief flashes; 3) bothon andoff responses in optic nerve fibers; 4) centrifugally conducted impulses in the optic nerve which may be excited or inhibited by light; and 5) oscillatory behavior which has a stable, temperature dependent frequency. All of these phenomena other than the centrifugal activity can be gotten with isolated eyes. The non-impulse behavior can also be gotten from small pieces of retina. There is therefore evidence for highly complex activity within local areas of the anatomically simple retina.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00608757

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