• 한국조명전기설비학회지:조명전기설비
• /
• 제13권2호
• /
• pp.144-144
• /
• 1999

Phantom phenomena on the signal light was observed and change of perception-reaction time of the observer was measured. If phantom phenomena occurs, signal light perception- reaction time by the drivers is prolonged, the extent of which may disturb driving. Length of the perception-reaction time is affected by the luminance contrast between the turned-on and tuned-off signals. Based on the measured results, several methods to prevent phantom phenomena were suggested.

• 대한토목학회논문집
• /
• 제31권1D호
• /
• pp.65-72
• /
• 2011

고속도로 분기부 연결로상에서는 연속되는 유출형태가 나타나게 되어, 주행상의 안전성을 고려한 1차, 2차 분류지점 간 적정 이격거리(L)를 확보하는 것은 매우 중요한 사항이다. 본 연구에서는 현행 도로설계 지침에서 제시한 240m라는 동일한 설계기준을 적용하는 대신에, 동 구간에서 운전자에게 필요한 인지반응시간과 차로변경시간을 고려한 적정 이격거리를 산정하는 방식을 제안하였다. 특히 인지반응시간과 관련하여 정지시거 계산에 활용되는 기존의 2.5초와 더불어 기하구조 상의 특성을 고려한 판단시거 계산에 활용되는 보다 긴 인지반응시간을 추가적으로 고려하였다. 더불어 적정 이격거리 산정의 타당성을 확인하기 위해 고속도로 분기점 중 사고가 잦은 네 개의 분기점을 대상으로 교통사고 발생현황을 조사하여, 본 연구에서 검토한 적정 이격거리 산정방법을 적용하여 최소 이격거리를 도출하여 보았다. 연구 결과, 현재의 기준치가 정지시거를 중심으로 할 때는 충분한 최소 이격거리를 제시하고 있지만 판단시거를 중심으로 할 때는 충분하지 못하다는 점을 확인할 수 있었다. 사고가 잦은 현장에서 조사한 차량들의 실제 주행속도가 설계속도와 비교해 월등히 높은 점을 감안한다면, 지침에서 제시하는 것과 같은 획일적인 이격거리의 적용보다는 예상되지 못한 상황을 가정하여 적정 이격거리를 구하게 되는 판단시거를 중심으로 한 이격거리 계산과 설계가 오히려 더 설득력 있을 것으로 사료된다.

• 대한통합의학회지
• /
• 제5권4호
• /
• pp.77-81
• /
• 2017

Purpose : This study examined the effects of driving rehabilitation functional training on visual perception ability and driving reaction velocity. Those subjects were put under MVPT-3 test to see their visual perceptual functions before and after the 4weeks' driving rehabilitation function training and then put to TMT A-type test to see their driving reaction velocity performance. The followings are the results of this study. Methods : Using a driving simulator, driving rehabilitation functional training was performed targeting men and women aged in 20s 20 minutes per time, two times per week, for a month. Results : As for the change in visual perception, the Raw Score of MVPT-3 very significantly increased (p<.01), and the Standard Score also very significantly increased (p<.01). As for the change in reaction velocity, TMT A-type very significantly decreased (p<.01), and TMT B-type also very significantly decreased (p<.01). Conclusion : It could be found that driving rehabilitation functional training should be effective for both visual perception and reaction velocity. Consequently, the driving rehabilitation function training can be applied to clinics as training method for functional recovery and improvement of visual perceptual functions and driving reaction velocity performance ability of the patients. Thus, various functional programs should be studied in the future.

• 조명전기설비학회논문지
• /
• 제13권2호
• /
• pp.12-16
• /
• 1999

신호등에서 발생하는 Phantom 현상을 관찰하고 이에 의해 관찰자으 인지반응시간이 변화하는 정도를 측정하였다. Phantom 현상이 발생하면 운전자의 신호등 인지반응시간이 길어지며, 그 정도는 운전에 장해를 줄 수 잇는 정도이었다. 인지반응시간의 길이는 점등된 신호등과 신호등 사이의 휘도 대비에 의해 영향을 받는 것을 밝혀졌다. 측정결과를 바탕으로 Phantom 현상을 방지하기 위한 방법들을 제안하였다.

• 조명전기설비학회논문지
• /
• 제21권10호
• /
• pp.1-12
• /
• 2007

본 실험에서는 운전자의 시인성을 측정하였다. 운전자의 시인성은 전압패턴에 따라 피험자의 장애물 인식 반응시간을 측정하여 분석하였고, 남녀 성별 간의 장애물 인식 반응시간의 차이를 분석하였다. 또한 전조등의 전압변동에 의한 밝기 비율에 따라서 피험자의 장애물 인식 반응속도를 분석하였고, 전압변동이 없을 때의 장애물 인식 반응시간을 기준으로 상대적인 장애물 인식 지연시간을 분석하였다.

• 음성과학
• /
• 제14권1호
• /
• pp.63-72
• /
• 2007

In this study, the researchers evaluate the hypothesis that the reaction time (RT) in the brain is largely dependent on age and gender. The researchers tested English and Korean words using two types: reading as visual stimuli, and listening as auditory stimuli. The E-Prime program installed in functional magnetic resonance imaging (f-MRI) was used. There are 136 Korean subjects in three groups: 30 children (5th and 6th grade elementary school students), 76 young adults (college students), and 30 adults (35-53 years old). In the listening test, the variation for the two languages was different among the three age groups, regardless of gender, whereas the data did not show meaningful differences in the reading test. The findings will provide some meaningful information regarding perception and acquisition of a foreign language.

• 조명전기설비학회논문지
• /
• 제20권10호
• /
• pp.10-18
• /
• 2006

본 논문에서는 전조등의 밝기 변화가 운전자에게 어떠한 영향을 미치는지에 대하여 연구 하였다. 이러한 연구를 위하여 먼저 실내 실험실을 설계 및 구축하고 전조등의 순간적인 자기 변동과 피험자의 뇌파 측정을 위한 시스템을 제작하였다. 그리고 본 실험에 들어가기 전 예비실험을 행하여 실험 시간, 피험자 휴식 시간, 구체적 실험 순서, 전조등의 전압변화 패턴, 장애물 경로 등을 결정하였다.

• 대한음성학회지:말소리
• /
• 제57호
• /
• pp.31-42
• /
• 2006

The purpose of this study is to observe how Korean learners perceive an English weak syllable in words containing WS syllable pattern. According to the automated discrimination task using E-Prime, the ratio of correct answer(%) and reaction time of the stimuli with same syllable patterns were respectively higher and faster than those with different syllable patterns. Specifically, in the stimuli with different syllable patterns, the frequency(familiarity) of stressed word succeeding weak syllable and whether the weak syllable had coda in it were two important factors in distinguishing between a word with and without weak syllable. Even though the high English proficiency Koreans had faster reaction time than the low English proficiency Koreans, all Korean learners had a difficulty in perceiving the weak syllable at the beginning of a word.

• 한국안전학회지
• /
• 제16권4호
• /
• pp.182-187
• /
• 2001

This paper examines the effects on human reaction time and mental fatigue of changes in the intensity of physical activity. A treadmill-equipped instrument and perception tester were used to attain several levels of physical activity. In this paper, in order to determine the individual levels of physical activity of subjects, Borg-RPE scale, Heart Rate(HR) and Respiratory Quotient(RQ) were used. Also, a reaction test in whole-body activity on treadmill-equipped instrument and an addition test as an indicator of mental fatigue were performed. In the above experiments, the scores obtained in addition test administered before and after Physical activity at each intensity level used. Restricted within the limits of this paper, the results of these tests showed that mental fatigue decreased after physical activity.

• 한국실내디자인학회논문집
• /
• 제19권6호
• /
• pp.197-205
• /
• 2010

For the spatial experience of spectators visiting a museum, the route search of trying to follow the spatial structure or production of exhibition and the information search of trying to see are accomplished at the same time. In such process, the spectator's reaction of visual perception produces the result of emotional reaction and action exchanged between human and space by going through the recognition and perception on the target of environment factor. For the spatial experience of a spectator, the reaction of visual perception which interacts according to the exhibit and exhibition environment within space according to viewing purpose, interest and concern of spectator comes out as visual activity which is an activity to understand the spatial information shown as various activities according to spatial structure and unfolding characteristics of the display. The purpose of this study is to identify The Correlation of Spectator Movement Created According to Structural Form of Exhibition Area Based on Interaction between Exhibition Area Structure and Spectator to utilize as basic material while designing museum exhibition using isovist field which is a quantitative analysis tool of spectator's visual behavior and spatial structure at each exhibition area.