A late component of flash-evoked potentials in the cat's optic chiasma and superior colliculus: its appearance due to background illumination.
Flash-evoked potentials (FEPs) in the cat's optic chiasma and superior colliculus were recorded under the following two conditions: complete darkness and background illumination. Special attention was paid to a specific late component of FEP'S and comparison in the behavior of the late component was made between the two conditions. It was found that a late component of FEPs in the optic chiasma appeared in the presence of background illumination while it was not observed under the condition of complete darkness. A corresponding late component of FEPs was detected in the superior colliculus. The late component might be supposed to be driven from a class of W-cells in the cat's retina.
D000818:Animals; D002415:Cats; D003623:Dark Adaptation; D005071:Evoked Potentials; D009434:Neural Pathways; D009897:Optic Chiasm / Q000502:physiology*; D011930:Reaction Time; D012160:Retina / Q000502:physiology; D013477:Superior Colliculi / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*