Annals of Occupational and Environmental Medicine

Original Article

Effects of Number and Method of Visual Stimuli on Simple Reaction Time: Jee Sung Kim, Sung Ah Kim, Chae Yong Lee, Soon Woo Park, Si Hyun Nam, Jong Young Lee, Ji Yeon Son; Korean Journal of Occupational and Environmental Medicine 1996;8(3):477-489. Published online December 31, 1996; DOI: https://doi.org/10.35371/kjoem.1996.8.3.477

In. order to evaluate the effects of number and method of visual stimuli on simple reaction time and determine the proper number of trials, simple reaction time of the computerized test of NTOS (Neurobehavioral Test for Occupational Screening) was carried out on 240 medical students. The prominent difference was found between male and female on simple reaction time. Regarding the effect of number based on the parameters of measures and the purpose of test itself, 64 trials was considered as proper number. The mean reaction time was different according to the methods of visual stimuli, such as color and size(p<0.05). The larger and more intence visual stimuli were, the faster sim-ple reaction time was. In respect to sex, that difference was similar. But, there was no difference depending upon whether the each result of each trial was showed on the monitor. The subjects, however, showed much interest when the result showed. Further studies, including the various variables on visual stimuli, are required to compare among various studies.

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Performance assessment on the Korean Computerized Neurobehavioral Test using a mobile device and a conventional computer: an experimental study
Young Seok Byun, Sung Kyu Park, Joon Sakong, Man Joong Jeon
Annals of Occupational and Environmental Medicine.2018;[Epub] CrossRef

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Original Article

Effect of Height and Arm Length on Simple Reaction Time: Hyang Sook Kim, Chae Yong Lee, Jong Young Lee, Mun Suk Jyung, Hyeong Ryeol Yoon, Gwang Seo Choi; Korean Journal of Occupational and Environmental Medicine 1996;8(1):97-104. Published online February 29, 1996; DOI: https://doi.org/10.35371/kjoem.1996.8.1.97

Abstract PDF: To identify the relation between simple reaction time and height and arm length, simple reaction time was performed to medical students with measurement of height, and arm length. Participants should answer questions about Smoking, drinking, sleep deprivation, history of diseaseand drug, whether to use computer or hot Mean height of men(n=98) was 173.0+/-4.79 cm, that of women (n-22) 161.7+/-4.33 cm. Mean arm length of men was 73.5+/-3.09 cm, and that of women 68.0+/-2.93 cm respectively. Height and arm length were statistically significantly different between-men and women (plt;0.01). Mean simple reaction time of men was 265.4+/-25.03 msec, that of women 286.8+/-28.48 msec. Mean simple reaction time was also statistically significantly different(p<0.01). As a result of correlation analysis, for men. None was significant. However, for women, height and arm length showed statistically significant, correlation with mean reaction time. Correlation coefficient of height and arm length were 0.45 (p<0.05) and 10.57 (p<0.05) respectively.

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