Electrostimulation of Deep Brain Structures
Electro-sleep can be produced in cats by superficial cortical stimulation using trains of current with an electro-encephalograph (EEG) modulated sine-wave current (Wulfsohn and Waldron). Where this current produces its effect is not clear. To help elucidate this problem this current was used to stimulate some of the depth structures in the brain already shown to produce sleep by the use of other currents, such as low frequency square waves or pulses.
KeywordsCaudate Nucleus Reticular Formation Sleep Period Paradoxical Sleep Medial Thalamus
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- 1.Akert, K., Koella, W.P., Hess, W.R. (1952) Sleep produced by electrical stimulation of the thalamus. Am. J. Physiol. 168-260.Google Scholar
- 2.Akert, K., Bally, C., Schade, J.P. (1965) Sleep Mechanisms. Progress in Brain Research. Vol. 18, 11Google Scholar
- 3.Favale, E. Loeb, C., Rossi, G., Sacco, G. (1961) EEG synchronization and behavioral signs of sleep following low frequency stimulation of the brain stem reticular formation. Arch. Ital. de Biol., 99, 1–22.Google Scholar
- 5.Magnes, J., Moruzzi, G., Pompeiano, O. (1961) Synchronization of the EEG produced by low electrical stimulation of the region of the solitary tract. Arch. Ital. de Biol. 99, 33.Google Scholar
- 6.Monnier, M., Hoshi, L., Krupp, P. (1963) Moderating and activation systems in mediocentral thalamus and reticular formation. The Pharmacological Basis of Mental Activity. EEG and Clin. Neurophysiol. Supplement 24., 97.Google Scholar
- 7.Parmeggiani, P. L., (1962) Sleep behaviour elicited by electrical stimulation of cortical and subcortical structures in the cat. Helv. Physiol. Acta, 20, 347.Google Scholar
- 8.Parmeggiani, P.L., (1961–1962) Pflugers Archiv, fuer die gesamte Physiol. 274, 85.Google Scholar
- 10.Proctor, L., Knighton, R., Churchill, J. (1957) Variations in consciousness produced by stimulating the reticular formation of the monkey. Neurol., 7, 1, 193.Google Scholar
- 11.Rossi, G.F., (1963) Sleep inducing mechanisms in the brain stem. In: the physiological basis of mental activity. Ed. R.N. Peon. EEG and Clin. Neurophysiol. Supplement 24, Elsenier Publishing Co. N.Y.Google Scholar
- 13.Wulfsohn, N., Waldron, L. (1969) The importance of trains of current in electrosleep. 2nd Inter. Congr. Graz, Austria, September.Google Scholar