March 2012 Cartoons - Clinical Advisor

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Clinical Advisor aims to provide a smile or chuckle to help you through the long hours you spend practicing medicine. Now you can see our cartoons online, too.

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This electroencephalogram (EEG) recording shows brain waves in various states of sleep. Trace 1 is of a brain when awake. Trace 2 shows the alpha-waves of a person still awake, but with eyes closed, receiving no external stimuli. Trace 3 shows theta-waves, as the person falls asleep. Trace 4 shows more complex patterns and trace 5 shows the standard delta-wave pattern usually associated with sleeping. REM, or rapid eye movement, sleep is shown in trace 6. This stage is when dreaming occurs and a

Sleep Disorders