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  • Title: Effects of sleep and arousal on the processing of visual information in the cat.
    Author: Livingstone MS, Hubel DH.
    Journal: Nature; 1981 Jun 18; 291(5816):554-61. PubMed ID: 6165893.
    Abstract:
    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.
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