OFF-RESPONSE OF ELECTRORETINOGRAM INDUCED BY X-RAY STIMULATION

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Vision Research (England - U.S.)

DOI:https://doi.org/10.1016/0042-6989(63)90067-1· OSTI ID:4644726

Bachofer, C S; Wittry, S E

The ability of the grass frog Rana pipiens to produce an electroretinogram (ERG) in response to x rays, similar in some respects to the ERG produced in response to light, is reported. The on-response to x rays is comparable to the on-response to light. However, the off-response to x rays differs considerably from the off-response to light, and, moreover, differs in frogs of altered physiological condition (depending on the season, state of hibernation, and nutrition). Animals in prime physical condition show a very small off-response which involves a complex relation to the intensity and duration of the stimulus. Starved frogs show a very slow off-response, characterized by considerable amplitude and duration. All degrees of response were observed between these two extremes. It was concluded that physiological condition. related to inadequate nutrition, rather than the physiological changes associated with hibernation or reproduction, is responsible for the response observed. It is suggested that the human eye, similar in response in many respects to the frog eye or the eyes of other mammals, might produce off- responses to x rays similar to those described above for frogs, and, if so, they be related to a comparable physiological condition. (BBB)

• Research Organization: Univ. of Notre Dame, Ind.
• NSA Number: NSA-17-035581
• OSTI ID: 4644726
• Journal Information: Vision Research (England - U.S.), Journal Name: Vision Research (England - U.S.) Vol. Vol: 3; ISSN VISRA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANIMALS
BIOLOGY AND MEDICINE
DIET
ELECTRIC METERS
ELECTRORETINOGRAPHY
EYES
LIGHT
MAN
MEASURED VALUES
METABOLISM
PHYSIOLOGY
RADIATION EFFECTS
RANA
RECORDING SYSTEMS
REPRODUCTION
TEMPERATURE
X RADIATION