Receptor and interneuron light-adaptation in the dragonfly visual system.
Intracellular recordings show that the receptors and second-order interneurons of the dragonfly compound eye change their sensitivity in response to maintained illumination. Comparison of receptor with interneuron shows that neural mechanisms act to ensure that the modulation of interneuron membrane potential that is set up by contrast changes is independent of background intensity.
D000222:Adaptation, Physiological; D000818:Animals; D003623:Dark Adaptation; D007313:Insecta / Q000502:physiology*; D007395:Interneurons; D008027:Light; D010786:Photoreceptor Cells / Q000502:physiology*; D012160:Retina / Q000502:physiology*