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Electroencephalogram asymmetry and spectral power during sleep in the northern fur seal
The fur seal (Callorhinus ursinus), a member of the Pinniped family, displays a highly expressed electroencephalogram (EEG) asymmetry during slow wave sleep (SWS), which is comparable with theExpand
Fur Seals Suppress REM Sleep for Very Long Periods without Subsequent Rebound
Virtually all land mammals and birds have two sleep states: slow-wave sleep (SWS) and rapid eye movement (REM) sleep [1, 2]. After deprivation of REM sleep by repeated awakenings, mammals increaseExpand
Cortical Acetylcholine Release Is Lateralized during Asymmetrical Slow-Wave Sleep in Northern Fur Seals
Fur seals are unique in that they display both bilateral slow-wave sleep (BSWS), as seen in all terrestrial mammals, and slow-wave sleep with interhemispheric electroencephalogram (EEG) asymmetry,Expand
Behavioral aspects of sleep in bottlenose dolphin mothers and their calves
Adult dolphins are capable of sleeping with one eye open and exhibiting slow wave activity in the electroencephalogram (EEG) of one hemisphere at a time. The aim of this study was to examine theExpand
Fur Seals Display a Strong Drive for Bilateral Slow-Wave Sleep While on Land
Fur seals (pinnipeds of the family Otariidae) display two fundamentally different patterns of sleep: bilaterally symmetrical slow-wave sleep (BSWS) as seen in terrestrial mammals and slow-wave sleepExpand
Study of sleep in a walrus
Several behavioral and physiological adaptations have been developed in evolution of Pinnipeds allowing them to sleep both on land and in water. To date sleep has been examined in detail in eared andExpand
Monoamine Release during Unihemispheric Sleep and Unihemispheric Waking in the Fur Seal.
STUDY OBJECTIVES Our understanding of the role of neurotransmitters in the control of the electroencephalogram (EEG) has been entirely based on studies of animals with bilateral sleep. The study ofExpand
Regional differences in cortical electroencephalogram (EEG) slow wave activity and interhemispheric EEG asymmetry in the fur seal
Slow wave sleep (SWS) in the northern fur seal (Callorhinus ursinus) is characterized by a highly expressed interhemispheric electroencephalogram (EEG) asymmetry, called ‘unihemispheric’ orExpand
Symmetrical Serotonin Release during Asymmetrical Slow-Wave Sleep: Implications for the Neurochemistry of Sleep–Waking States
On land, fur seals predominately display bilaterally synchronized electroencephalogram (EEG) activity during slow-wave sleep (SWS), similar to that observed in all terrestrial mammals. In water,Expand
Video registration as a method for studying kinetic parameters of chlorophyll fluorescence in Ficus benjamina leaves
A method of imaging and analysis of fluorescence kinetic parameters distributed over leaf area is described in details. Video data recorded by the CCD-camera were processed using free programsExpand