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European Journal of Applied Physiology

, Volume 89, Issue 3–4, pp 319–325 | Cite as

Experimental evaluation of eye-blink parameters as a drowsiness measure

  • Philipp P. Caffier
  • Udo Erdmann
  • Peter UllspergerEmail author
Original Article

Abstract

Drowsiness and increased tendency to fall asleep during daytime is still a generally underestimated problem. An increased tendency to fall asleep limits the efficiency at work and substantially increases the risk of accidents. Reduced alertness is difficult to assess, particularly under real life settings. Most of the available measuring procedures are laboratory-oriented and their applicability under field conditions is limited; their validity and sensitivity are often a matter of controversy. The spontaneous eye blink is considered to be a suitable ocular indicator for fatigue diagnostics. To evaluate eye blink parameters as a drowsiness indicator, a contact-free method for the measurement of spontaneous eye blinks was developed. An infrared sensor clipped to an eyeglass frame records eyelid movements continuously. In a series of sessions with 60 healthy adult participants, the validity of spontaneous blink parameters was investigated. The subjective state was determined by means of questionnaires immediately before the recording of eye blinks. The results show that several parameters of the spontaneous eye blink can be used as indicators in fatigue diagnostics. The parameters blink duration and reopening time in particular change reliably with increasing drowsiness. Furthermore, the proportion of long closure duration blinks proves to be an informative parameter. The results demonstrate that the measurement of eye blink parameters provides reliable information about drowsiness/sleepiness, which may also be applied to the continuous monitoring of the tendency to fall asleep.

Keywords

Drowsiness Eye blink Infrared sensor Sleepiness 

References

  1. Barbato G, Ficca G, Muscettola G, Fichele M, Beatrice M, Rinaldi F (2000) Diurnal variation in spontaneous eye-blink rate. Psychiatr Res 93:145–151CrossRefGoogle Scholar
  2. Bixler EO, Kales A, Leo LA, Slye T (1973) A comparison of subjective and objective sleep laboratory findings in insomniac patients. Sleep Res 2:143Google Scholar
  3. Blount WP (1928) Studies of the movements of the eyelids of animals: blinking. Q J Exp Physiol 18:111–125Google Scholar
  4. Brezinova V, Kendell RE (1977) Smooth pursuit eye movements of schizophrenics and normal people under stress. Br J Psychiatr 130:59–63Google Scholar
  5. Caffier PP (2002) Spontaner Lidschlag als Ermüdungsindikator bei Registrierung mittels kontaktfreiem Infrarotsensor. Schriftenreihe der Bundesanstalt für Arbeitsschutz und Arbeitsmedizin. Wirtschaftsverlag NW S 69 Dortmund/ BerlinGoogle Scholar
  6. Caffier PP, Ullsperger U, Erdmann U (1999) Relationship between personal state ratings and eyeblink parameters recorded with contact-free infrared sensor. Psychophysiology 36:S20Google Scholar
  7. Carpenter A (1948) The rate of blinking during prolonged visual search. J Exp Psychol 38:587–591Google Scholar
  8. Carskadon MA, Dement WC (1985) The multiple sleep latency test: What does it measure? Sleep 5:67–72Google Scholar
  9. Collet C, Delhomme G, Dittmar A, Khardi S, Vernet-Maury E (1999) Electrodermal tonic level variations associated with thermo-vascular and cardio-respiratory recordings as reliable indices for the detection of drowsiness in automobile drivers. Psychophysiology 36:S21Google Scholar
  10. Connor J, Whitlock G, Norton R, Jackson R (2001) The role of driver sleepiness in car crashes: a systematic review of epidemiological studies. Accid Anal Prev 33:31–41CrossRefPubMedGoogle Scholar
  11. Davson H (1990) Blinking. In: Davson H (ed) Physiology of the eye. Pergamon, New York, pp 786–791Google Scholar
  12. Doane MG (1980) Interaction of eyelids and tears in corneal wetting and the dynamics of the normal human eyeblink. Am J Ophthalmol 89:507–516PubMedGoogle Scholar
  13. Folstein MF, Luria R (1973) Reliability, validity and clinical application of the Visual Analogue Mood Scale. Psychol Med 3:479–486PubMedGoogle Scholar
  14. George CF (2000) Vigilance impairment: assessment by driving simulators. Sleep 23 (S4):S115–S118PubMedGoogle Scholar
  15. Goldstein R, Walrath LC, Stern JA (1982) Blink activity as a function of stimulus modality and schedule of presentation in a discrimination task (Tech. Report, U.S. Dept. of the Interior, Bureau of Mines, Contract no. J0205064). Washington University Behavior Research Laboratory, St. Louis, Mo.Google Scholar
  16. Haider E, Rohmert W (1976) Untersuchung zur Lidschlussfrequenz bei vierstündiger simulierter Kraftfahrzeugfahrt. Eur J Appl Psychol 39:137–148Google Scholar
  17. Hoddes E, Dement WC, Zarcone V (1973) The development and use of the Stanford Sleepiness Scale (SSS). Psychophysiology 10:431–436PubMedGoogle Scholar
  18. Hoffmann RM, Müller T, Hajak G, Cassel W (1997) Abend-Morgenprotokolle in Schlafforschung und Schlafmedizin – Ein Standardinstrument für den deutschsprachigen Raum. Somnologie 1:103–109Google Scholar
  19. Horne JA, Reyner LA (1999) Vehicle accidents related to sleep: a review. Occup Environ Med 56 (5):289–294PubMedGoogle Scholar
  20. Johns MW (1991) A new method for measuring daytime sleepiness: the Epworth Sleepiness Scale. Sleep 14 (6):540–545PubMedGoogle Scholar
  21. Jordan W, Hajak G (1997) Gestörter Schlaf – was tun? Arcis, MunichGoogle Scholar
  22. Kennard DW, Glaser GH (1964) An analysis of eyelid movements. J Nerv Ment Dis 139:31–48Google Scholar
  23. Kopriva K, Horvath M, Stern JA (1970) The effect of pentobarbital on oculomotor activity. [Unpublished manuscript, Czechoslovakia Institute of Physiology, Prague]Google Scholar
  24. Lukiesh M (1947) Reading and the rate of blinking. J Exp Psychol 37:266–288Google Scholar
  25. Mitler MM, Gujavaraty S, Browman CP (1982) Maintenance of wakefulness test: a polysomnographic technique for evaluating treatment efficacy in patients with excessive somnolence. Electroencephalogr Clin Neurophysiol 53:658–661PubMedGoogle Scholar
  26. Morris T, Miller JC (1996) Electrooculographic and performance indices of fatigue during simulated flight. Biol Psychol 42:343–360CrossRefPubMedGoogle Scholar
  27. Mourant RR, Lakshmanan R, Chantadisai R (1981) Visual fatigue and CRT display terminals. Hum Fact 23:529–540Google Scholar
  28. Nitsch JR (1974) Die hierarchische Struktur des Eigenzustandes – ein Approximationsversuch mit Hilfe der Binärstrukturanalyse (BISTRAN). Diagnostika 20:142–164Google Scholar
  29. Ogawa K (1998) Development of a Drowsiness Detection System. In: Proceedings of Second International Conference on Psychophysiology in Ergonomics (PIE). International Ergonomics Association (IEA), London, pp 122–123Google Scholar
  30. Oginski A, Oginska H, Pokorski J, Kmita W, Gozdziela R (2000) Internal and external factors influencing time-related injury risk in continuous shift work. Int J Occup Saf Ergon 6 (3):405–421PubMedGoogle Scholar
  31. Oster PJ, Stern JA (1980) Measurement of eye movement: electrooculography. In: Martin I (ed) Techniques in psychophysiology. Wiley, Chichester, pp 275–309Google Scholar
  32. Ponder E, Kennedy WP (1928) On the act of blinking. Q J Exp Physiol 18:89–110Google Scholar
  33. Randerath W, Gerdesmeyer C, Ströhlein G, Rühle KH (1997) Messung der Vigilanz mittels Fahrsimulator vor und nach nCPAP – Vergleich zweier Simulationsprogramme mit unterschiedlicher Ereignishäufigkeit. Somnologie 1:110–114Google Scholar
  34. Satake T (1995) A study of evaluation of drowsiness – analysis of blinking duration by facial image. In: Proceedings of 11th Symposium on Human Interface. Human Interface Society, Kyoto/Japan, pp 225–230Google Scholar
  35. Schandry R (1996) Lehrbuch der Psychophysiologie. Psychologie Verlags Union, MunichGoogle Scholar
  36. Sirevaag EJ, Stern JA (2000) Ocular measures of fatigue and cognitive factors. In: Backs RW (ed) Engineering psychophysiology. Issues and applications. Erlbaum, Mahwah, N.J., pp 269–287Google Scholar
  37. Stern JA, Beideman L, Chen SC (1976) Effect of alcohol on visual search and motor performance during complex task performance. In: Horvath M (ed) Adverse effects of environmental chemicals and psychotropic drugs: neurophysiological and behavioral tests, vol 2. Elsevier, Amsterdam, pp 53–68Google Scholar
  38. Stern JA, Walrath LC, Goldstein R (1984) The endogenous eyeblink. Psychophysiology 21:22–33PubMedGoogle Scholar
  39. Stern JA, Boyer DJ, Schroeder D (1994) Blink rate: a possible measure of fatigue. Hum Fact 36 (2):285–297Google Scholar
  40. Stern JA, Boyer DJ, Schroeder D, Touchstone MR, Stoliarov N (1996) Blinks, saccades, and fixation pauses during vigilance task performance: II. Gender and time-of-day (DOT/FAA/AM/96/9). FAA Office of Aviation Medicine, Washington DCGoogle Scholar
  41. Sugiyama K, Nakano T, Yamamoto S, Ishihara T, Fujii H, Akutsu E (1996) Method of detecting drowsiness level by utilizing blinking duration. JSAE Rev 17 (2):159–163CrossRefGoogle Scholar
  42. U.S. Department of Transportation, Federal Highway Administration (1999) Eye-activity measures of fatigue and napping as a fatigue countermeasure (Final Report, FHWA-MC-99–028). Federal Highway Administration, Washington DCGoogle Scholar
  43. Weess HG, Sauter C, Geisler P, Böhning W, Wilhelm B, Rotte M, Gresele C, Schneider C, Schulz H, Lund R, Steinberg R (2000) Vigilanz, Einschlafneigung, Daueraufmerksamkeit, Müdigkeit, Schläfrigkeit – Diagnostische Instrumentarien zur Messung müdigkeits- und schläfrigkeitsbezogener Prozesse und deren Gütekriterien. Somnologie 4:20–38CrossRefGoogle Scholar
  44. Wierwille WW (1999) Desired attributes of drowsy driver monitoring and candidate Technologies for implementation. In: Ocular measures of driver alertness: technical conference proceedings (FHWA-MC-99–136). Federal Highway Administration, Washington DC, pp 130–143Google Scholar
  45. Wilson GF, Lambert J (1999) Physiological effects of varied mental workload in pilots during flight. Psychophysiology 36:S126Google Scholar
  46. Wright NA, McGown AS (1999) Vigilance on the civil flight deck: incidences of sleepiness and sleep during long-haul flights and associated changes in physiological parameters. Psychophysiology 36:S127Google Scholar
  47. Yamada F (1998) Frontal midline theta rhythm and eyeblinking activity during a VDT task and a video game: useful tools for psychophysiology in ergonomics. Ergonomics 41 (5):678–688CrossRefPubMedGoogle Scholar
  48. Zametkin AJ, Stevens JR, Pittman R (1979) Ontogeny of spontaneous blinking and habituation of the blink reflex. Ann Neurol 5:452–457Google Scholar

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Philipp P. Caffier
    • 1
  • Udo Erdmann
    • 1
  • Peter Ullsperger
    • 1
    Email author
  1. 1.Federal Institute for Occupational Safety and HealthNoeldnerstr. 40/42BerlinGermany

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