Electroretinograms and circadian rhythms in green sunfish.
نویسندگان
چکیده
منابع مشابه
Electroretinograms and circadian rhythms in green sunfish
Dear Sir, The article by McMahon and Barlow (1992) in this issue seeks to reinterpret some results reported in a prior publication in this journal (Dearry and Barlow, 1987). McMahon and Barlow (1992) suggest that a "fast" response observed in the previous electrical recordings originates from eye movement, and that this potential was incorrectly interpreted as the b-wave of the electroretinogra...
متن کاملCircadian rhythms in the green sunfish retina
We investigated the occurrence of circadian rhythms in retinomotor movements and retinal sensitivity in the green sunfish, Lepomis cyanellus. When green sunfish were kept in constant darkness, cone photoreceptors exhibited circadian retinomotor movements; rod photoreceptors and retinal pigment epithelium (RPE) pigment granules did not. Cones elongated during subjective night and contracted duri...
متن کاملVisual responses in teleosts. Electroretinograms, eye movements, and circadian rhythms
We have recorded ocular potentials in response to brief flashes of light from two teleosts, the white perch (Roccus americana) and the green sunfish (Lepomis cyanellus). The animals were respired and maintained in an alert state for up to 2 d. Responses were recorded with corneal and transcleral electrodes. The responses of green sunfish were composed of electroretinogram (ERG) and eye movement...
متن کاملEffects of circadian rhythm and cAMP on retinomotor movements in the green sunfish, Lepomis cyanellus.
The photoreceptors and retinal pigmented epithelium (RPE) of teleosts undergo diurnal changes in position in response to day/night changes in light conditions. These position changes, called retinomotor movements, may also persist under conditions of constant darkness. In this study, the authors have compared the retinomotor movements of rods, cones, and RPE under conditions of constant darknes...
متن کاملCircadian rhythms.
1997 marks the 25th anniversary of the discovery of the master circadian pacemaker in mammals in the hypothalamic suprachiasmatic nucleus. Remarkable progress has been made over the last 25 years in elucidating the physiological mechanisms involved in the entrainment, generation and expression of circadian rhythms at the cellular and systems levels. The recent discovery and cloning of the first...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1992
ISSN: 0022-1295,1540-7748
DOI: 10.1085/jgp.100.1.171