VISUAL SYSTEM AND SLEEP,
Abstract
The results of three groups of experiments on the relationships between the visual system and sleep in the midpontine pretrigeminal cat are summarized. The dark discharge of the retina exerts a tonic activating influence on the EEG, possibly by increasing the activity of the ascending reticular system. Reversible patterns of EEG synchronization occur following functional (ischemic) retinal deafferentation, in the dark adapted animal. In given experimental conditions continuous photic stimulation may produce EEG synchronization. Indirect evidence is given in support of the hypothesis that the abolition of the dark discharge is responsible for these effects. EEG sleep patterns occur only after several hours of repetitive photic stimulation. The mechanism of this EEG synchronizing effect is discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1959
- Accession Number
- AD0611370
Entities
People
- G. Moruzzi
Organizations
- University of Pisa