Wellenlängen-Diskriminatoren im Pinealorgan von Rana temporaria

Heerd, E.; Dodt, E.

doi:10.1007/bf02292256

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1962

1993

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Cited by 27 publications

(2 citation statements)

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“…Histologically this is a degenerate organ, being an irregular mass of epithelial cells some of which resemble retinal rods. There is evidence, however, that in this animal the pineal organ still functions as a light receptor (Heerd and Dodt, 1961).…”

Section: Discussionmentioning

confidence: 82%

A Retro-Ocular Teratoma Containing Pinealomatous Tissue in a Young Chicken

Jg¹

1962

Br J Cancer

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Section: Discussionmentioning

confidence: 82%

A Retro-Ocular Teratoma Containing Pinealomatous Tissue in a Young Chicken

Jg¹

1962

Br J Cancer

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“…Nearly a century after the discovery of the frontal organ (Stieda's body) in the frog [1], Dodt and Heerd [7,16] succeeded in demonstrating the direct sensitivity of this organ to light. It was shown to produce two types of response, chromatic and achroma tic.…”

Section: General Aspectsmentioning

confidence: 99%

Evolution of the Pineal Complex: Correlation of Structure and Function

Oksche

1984

Ophthalmic Res

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The pineal organ is a derivative and integral component of the brain. In phylogeny it has changed from a ‘third eye’ capable of direct achromatic and/or chromatic responses to light to an endocrine gland influenced by visual stimuli from the retina. The outer segment of pineal photoreceptors contains a microspectrophotometncally detectable photopigment and an opsin-immunoreactive protein. Certain pinealocytes endowed with an outer segment display fluorophores of 5-HT/HTP and can be regarded as photoneuroendocrine cells. These photoneuroendocrine cells resemble cerebrospinal fluid-contacting neurons. The intrinsic circuitry (wiring diagram) of pineal photoreceptor organs has been only partly deciphered; this holds true also for the neurotransmitters and synaptic patterns. Pineal photoreceptor organs are connected to the brain, i.e., to habenular, pretectal, thalamic, tegmental (reticular), and hypothalamic centers. The special anatomical and physiological features of the pineal organ enable it to translate photic information into neural and neuroendocrine responses.

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