Indian Journal of Sleep Medicine

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VOLUME 7 , ISSUE 4 ( October-December, 2012 ) > List of Articles

ORIGINAL ARTICLE

Psychomotor vigilance task- objective sleep disorder screening tool for Indian population

Vanita C Ramrakhiyani, Abhijit G Deshpande, Prajakta A Deshpande, Prasad C Karnik

Citation Information : Ramrakhiyani VC, Deshpande AG, Deshpande PA, Karnik PC. Psychomotor vigilance task- objective sleep disorder screening tool for Indian population. Indian Sleep Med 2012; 7 (4):157-162.

DOI: 10.5958/j.0974-0155.7.4.023

License: NA

Published Online: 01-12-2018

Copyright Statement:  NA


Abstract

Introduction / Objective: The primary objective of the current pilot observational study was to establish feasibility and acceptability of sleep disorder screening tools, viz, Epworth Sleepiness Scale (ESS) and Psychomotor Vigilance Task (PVT) in Indian Population. The study also aimed to compare the sensitivity and specificity of both the screening tests. The outcome of the study will provide the threshold values for PVT to determine positive and negative diagnosis. Method: It was a community based study in clinical settings. Patients visiting sleep clinic during period of year August 2011 to year September 2012 formed the study population. The sample population included 66 patients; 49 males and 17 females with mean age of 45 (age range 14-75). All subjects administered ESS as well as 10 minute PVT followed by confirmatory tools such as Nocturnal Polysomnogram, MSLT and Actigraphy. ESS score >10 was considered positive. The presence of any of intrinsic or extrinsic sleep disorder is considered a positive diagnosis. Bayesian theorem was applied to determine sensitivity and specificity of tests administered. Results: Sensitivity of PVT was found to be high as 90.16 % as compared to that of ESS as 39.3%. However the specificity for both the tests was found to be equal at 100%. Among PVT measurements, number of lapses and average reaction time were found to be co-relating with a sleep disorder diagnosis. Conclusion: Individuals having low ESS score were diagnosed with sleep problems which were well predicted in their PVT results. For Indian population, PVT assessment is more sensitive screening tool for sleep disorders as compared to ESS. Although, when administered together, chances of missing any sleep problem are minimised. It was a pilot study and needs to be further validated with larger population.


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  1. “Waking up to sleep therapy”; Express Healthcare; June 2010.
  2. Adrienne M Tucker, Robert C Basner, Yaakov Stern, Brian C. Ratkin; “The Variable Response-Stimulus Interval Effect and sleep deprivation: An unexplored aspect of Psychomotor Vigilance Task Performance.”; Sleep; Vol. 32, No. 10, July 2009, pg no. 1393-1395.
  3. Clare Anderson, et.al;” PVT lapses differ according to eyes open, closed or looking away”; Sleep, vol 33, no. 2, 2010, pg no.197-204.
  4. Daniel A Cohen et.al.;”Uncovering residual effects of chronic sleep loss on human performance”; Sci Transl med, vol 2 no. 14, 2010, pg no.1-15.
  5. Daniel J. Buysse, M.D; Martica L. Hall, Ph.D.; Patrick J. Strollo, M.D.; Thomas W., Ph.D.; Jane Owens, Ph.D.; Laisze Lee, M.S.; Steven E. Reis, M.D.; Karen A. Matthews, PhD; “Relationships Between the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and Clinical/ Polysomnographic Measures in a Community Sample”; Journal of Clinical Sleep Medicine, Vol. 4, No. 6, 2008
  6. David R. Thorne et.al; “The Walter palm-held psychomotor vigilance test”; Behavior Research methods, vol 37, no 1, 2005, pg no 111-118.
  7. G Stores; “Clinical diagnosis and misdiagnosis of sleep disorders”; Journal of Neurol Neurosurg Psychiatry 2007; 78; 1293-1297.
  8. Hanish Sharma et.al;” Pattern & correlates of neurocognitive dysfunction in Asian Indian adults with severe obstructive sleep apnea”; Indian journal of Med Res; vol 132, 2010, pg no. 409-414.
  9. Hans P.A. et.al;” The cumulative cost of additional wakefulness: Dose-response effects on neurobehavioral functions and sleep physiology from chronic sleep restriction and total sleep deprivation”; Sleep vol 26 no. 2, 2003, pg no. 117-126.
  10. Hyon Kim, David F Dinges, Terry Young;”Sleep-Disordered breathing and Psychomotor vigilance in a community-based sample”; Sleep, Vol.30,No. 10, 200, pg no.1309-1316.
  11. In-Soo Lee et.al; “Number of lapses during the psychomotor Vigilance Task as an objective measure of fatigue”; Journal of clinical sleep medicine; vol 6, no. 2, 2010, pg no.163-168.
  12. Jillian Dorrian, Naomi L. Rogers and David F. Dinges; “Psychomotor Vigilance Performance: Neurocognitive Assay Sensitive to Sleep Loss”; University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.
  13. Mark S Aloia; “Neuropsychological consequences of obstructive sleep apnea-considerations for treatment”; Business briefing: US Respiratory Care, 2005, pg no.1-5.
  14. Matthew D. Kafta; “Effects of Sleep Deprivation”; South Dakota School of Mines & Technology, pg no. 73-79.
  15. Murray W. Johns; “A New Method for Measuring Daytime Sleepiness: The Epworth Sleepiness Scale”; Sleep, 14(6):540—545.
  16. Nancy Lynn Grugle; “Understanding the Effects of Sleep Deprivation on Executive Function, Complex Task Performance and Situation Awareness”; PhD Dissertation, Virginia Polytechnic Institute and State University, Virginia, 2005.
  17. Nilesh Shah, Abha Bang, Aparna Bhagat; “Indian research on sleep disorders”; Indian Journal of Psychiatry, 52, supplement, January 2010.
  18. R. Nisha Aurora et al; “Correlating subjective and objective sleepiness: Revisiting the association using survival analysis”; Sleep, vol 34, No. 12, 2011.
  19. Samhita Panda et.al.; “Sleep-related disorders among a healthy population in South India”; Neurology India; Vol 60, Issue 1, Feb 2012.
  20. Sarah Ledoux; “The Effects of Sleep Deprivation on Brain and Behavior”; Biology 202, 2002 third web report.
  21. Sarah Nath Zallek, M.D; Rachel Redenius; Holly Fisk, B.S; Carli Murphy, B.S; Erin O'Nei; “A Single Question as a Sleepiness Screening Tool”; Journal of Clinical Sleep Medicine, Vol. 4, No. 2, 2008.
  22. Surendra K. Sharma & Gautam Ahluwalia: “Epidemiology of adult obstructive sleep apnoea syndrome in India”; Indian J Med Res 131, February 2010, pp 171-175.
  23. Sylvia Loh et.al.” The validity of psychomotor vigilance tasks of less than 10-minute duration”, Behaviour research methods, instruments & computers; Vol 36 no. 2, 2004, pg no. 339-346.
  24. Teresa Bago et.al; “Does reporting heterogeneity bias the measurement of health disparities?” Tinbergen Institute Discussion paper, TI 2006-033/3.
  25. Zarir F. Udwadia, Amita V. Doshi, Sharmila G. Lonkar, and Chandrajeet I. Singh; “ Prevalence of sleep-disordered breathing and sleep apnea in middle-aged urban Indian men”; American Journal of Respir Crit Care Med; vol 169 pp 168-173, 2004.
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