Tham khảo tài liệu 'recent advances in biomedical engineering 2011 part 5', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 8 Alterations in Sleep Electroencephalography and Heart Rate Variability During the Obstructive Sleep Apnoea and Hypopnoea Dean Cvetkovic1 Haslaile Abdullah2 Elif Derya Ubeyli3 Gerard Holland4 and Irena Cosic5 Corresponding author - 1RMIT University School of Electrical and Computer Engineering GPO Box 2476V Melbourne VIC 3001 Australia e-mail 2RMIT University School of Electrical and Computer Engineering GPO Box 2476V Melbourne VIC 3001 Australia email s3209714@ 3TOBB Economics and Technology University Faculty of Engineering Department of Electrical and Electronics Engineering 06530 Sogutozu Ankara Turkey e-mail edubeyli@ 4St. Luke s Hospital Sleep Centre Sydney NSW Australia e-mail gholland@ 5RMIT University Science Engineering and Technology GPO Box 2476VMelbourne VIC 3001 Australia e-mail 1. Introduction Sleep is a vital physiological function and high quality sleep is essential for maintaining the good health. Sleep disorders however are amongst the most common disorders suffered by humans and it is rare for most people to regularly enjoy the amount of quality sleep they need. The behavioural and social causes of sleep disorders are typically the result of modern lifestyle which are usually linked to Obstructive Sleep Apnoea Hypopnea Syndrome OSAHS . Healthcare professionals and sleep researchers are currently looking for ways to improve the clinical diagnosis of OSAH sufferers. OSAH means cessation of breath Vgontzas 1999 . Due to this cessation of breath the sufferer might experience related 150 Recent Advances in Biomedical Engineering changes in the electrical activity of the brain and heart Roche et al. 1999 Cvetkovic et al. 2009 Dingli et al. 2003 Jurysta et al. 2006 Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology 1996 . This activity recorded from electroencephalographic EEG and electrocardiographic .