Effects of sleep and arousal on the processing of visual information in the cat.
Single units in the cat lateral geniculate nucleus and primary visual cortex show changes in both spontaneous and visually evoked firing as a function of the state of wakefulness. On arousal spontaneous firing is smoother and often reduced, whereas evoked responses are usually enhanced; the result is an increase in the signal-to-noise ratio. Single- and double-label 2-deoxyglucose autoradiographs show further that slow-wave sleep differentially depresses visually evoked activity in the deeper layers of the visual cortex.
D000200:Action Potentials; D000818:Animals; D001143:Arousal; D001345:Autoradiography; D001370:Axonal Transport; D002250:Carbon Radioisotopes; D002415:Cats; D003847:Deoxyglucose / Q000378:metabolism; D005071:Evoked Potentials; D005829:Geniculate Bodies / Q000502:physiology*; D012890:Sleep; D014316:Tritium; D014785:Vision, Ocular; D014793:Visual Cortex / Q000502:physiology*; D014796:Visual Perception
D002250:Carbon Radioisotopes; D014316:Tritium; D003847:Deoxyglucose