Title :
Relation between human alertness, velocity wave profile of saccade, and performance of visual activities
Author :
Ueno, A. ; Uchikawa, Y.
Author_Institution :
Dept. of Electron. & Comput. Eng., Tokyo Denki Univ., Saitama, Japan
Abstract :
Practical method for assessing human alertness is desired for preventing traffic accidents caused by drowsiness in the drivers. We examined relation between saccade profile (PV/D), which was reported to have dependency on the alertness, and visual activities to investigate an applicability of the saccade for assessing the alertness in vision-dependent circumstances such as driving. We defined a new parameter of visual activity as "bit rate of visual perception (BRVP)", and analyzed relations of saccade velocity profile to the BRVP, relative pupil diameter, and critical fusion frequency. The results showed significant high positive correlations between PV/D, BRVP, and relative pupil diameter.
Keywords :
bioelectric phenomena; biomechanics; eye; medical signal processing; visual perception; bit rate; critical fusion frequency; driver; driving; human alertness; relative pupil diameter; saccade profile; traffic accident; velocity wave profile; vision-dependent circumstance; visual activity; visual perception; Bioelectric phenomena; Brain; Charge coupled devices; Electroencephalography; Fluctuations; Frequency measurement; Humans; Infrared detectors; Road accidents; Visual perception; Bit rate of visual perception; critical fusion frequency; pupil diameter;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403313
