PMID: 3967708Feb 1, 1985

Variability in the characteristics of pontogeniculooccipital spikes during paradoxical sleep

Experimental Neurology
R M Bowker


An important criterion for identifying paradoxical sleep is the presence of a peculiar waveform recorded in the pons, lateral geniculate body, and visual cortex during that sleep state. These waveforms, termed PGO waves, have long been viewed as having large and constant amplitudes, an initial negative deflection in the visual cortex, and not being dependent on the levels of background illumination. Waveforms recorded during wakefulness have different characteristics, and these have been used to differentiate the waking state from paradoxical sleep. The present study demonstrated that most PGO waves have highly variable amplitudes during paradoxical sleep and that only a small fraction conform to the stereotypic wave characteristics of constant and large amplitudes and the presence of initial negative deflections. These findings argue against the criteria commonly used to differentiate PGO waves during paradoxical sleep from the eye movement potentials recorded in wakefulness.


Jun 1, 1987·Cellular and Molecular Neurobiology·C W CallawayJ A Hobson
Jan 1, 1991·Electroencephalography and Clinical Neurophysiology·W A BallA R Morrison
Nov 1, 1991·Electroencephalography and Clinical Neurophysiology·W A BallG L Mann
Dec 19, 2000·Neuroscience and Biobehavioral Reviews·J A Horne
Mar 29, 2014·Trends in Neurosciences·John PeeverJacques Montplaisir
Sep 2, 2008·Revue neurologique·J-J HauwD Seilhean


Jul 1, 1976·Electroencephalography and Clinical Neurophysiology·K Sakai, R Cespuglio
Jul 1, 1976·Electroencephalography and Clinical Neurophysiology·K SakaiM Jouvet
Jan 30, 1976·Brain Research·R M Bowker, A R Morrison
Nov 1, 1965·Electroencephalography and Clinical Neurophysiology·M B StermanC D Clemente
Aug 1, 1967·Electroencephalography and Clinical Neurophysiology·D C Brooks
Jun 1, 1968·Electroencephalography and Clinical Neurophysiology·D C Brooks
Nov 11, 1970·Brain Research·L J MalcolmW Burke

Related Concepts

Entire Lateral Geniculate Body
Sleep, Slow-Wave
Pontine Structure
Eye Movements
Lateral Geniculate Body
Entire Brodmann Areas 17 (Striate Cortex),18 (Parastriate Cortex) and 19 (Peristriate Cortex) of Occipital Lobe
Medial Geniculate Body
Sleep, REM
Visual Cortex

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