REPORT:,  The electroencephalogram shows background activity at about 9-10 cycle/second bilaterally.  Little activity in the beta range is noted.  Waves of 4-7 cycle/second of low amplitude were occasionally noted.  Abundant movements and technical artifacts are noted throughout this tracing.  Hyperventilation was not performed.  Photic stimulation reveals no important changes.,CLINICAL INTERPRETATION:,  The electroencephalogram is essentially normal.sleep medicine, beta range, hyperventilation, photic stimulation, electroencephalogramNOTE,: Thesetranscribed medical transcription sample reports and examples are provided by various users andare for reference purpose only. MTHelpLine does not certify accuracy and quality of sample reports.These transcribed medical transcription sample reports may include some uncommon or unusual formats;this would be due to the preference of the dictating physician. All names and dates have beenchanged (or removed) to keep confidentiality. Any resemblance of any type of name or date orplace or anything else to real world is purely incidental.,