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Relations between electroretinograms and occipital potentials elicited by flickering stimuli

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Summary

Simultaneous recordings of the ERG and the occipital potentials were made with human subjects and flickering stimuli. It was found that both the ERG and the occipital response increased in size when the luminance of the stimulus was increased, when its area was increased, or when both were increased. It was found that both responses rapidly adapted to flickering stimuli. The spectral sensitivity of the occipital response was found to be relatively more photopic than that of the retina.

Résumé

L'ERG et l'EEG occipital, utilisant des stimuli lumineux intermittents, sont enregistrés simultanément dans des sujets normaux.

L'auteur a montré que l'ERG aussi bien que l'EEG augmentent quand l'intensité du stimulus était augmentée, ou quand l'aire était augmentée ou quand toutes les deux étaient augmentées. Les réponses électrorétinographiques, aussi bien que les réponses électroencéphalographiques s'adaptaient rapidement aux flicker stimuli. La sensitivité spectrale de la réponse occipitale a été trouvée relativement plus photopique que celle de la rétine.

Zusammenfassung

Das ERG und die occipitalen Potentiale wurden bei normalen Versuchspersonen gleichzeitig mit Flimmerreizen gemessen. Der Autor fand, dass sowohl das ERG wie die occipitale Antwort sich vergrösserten, wenn die Reizhelligkeit vergrössert wurde, wenn das Feld vergrössert wurde, oder wenn beide zunahmen. Es zeigte sich, dass beide Antworten sich schnell an die Flimmerreize adaptieren. Die Spektralsensibilität der occipitalen Antwort wurde als relativ mehr photopisch als die der Retina gefunden.

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Walter Reed Army Institute of Research.

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Armington, J.C. Relations between electroretinograms and occipital potentials elicited by flickering stimuli. Doc Ophthalmol 18, 194–206 (1964). https://doi.org/10.1007/BF00160573

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