scholarly journals Brain Correlates of Lane Changing Reaction Time in Simulated Driving

2015 ◽  
Author(s):  
Huaijian Zhang ◽  
Ricardo Chavarriaga ◽  
Lucian Gheorghe ◽  
Jose Del R. Millan
Keyword(s):  
Reaction Time ◽  
Lane Changing ◽  
Simulated Driving ◽  
Brain Correlates

Driving Reaction Time Versus Computerized Reaction Time Deficits Following Concussion: Implications for Return to Driving Recommendations

Neurology ◽  
2020 ◽  
Vol 95 (20 Supplement 1) ◽  
pp. S5.1-S5
Author(s):  
Landon Bryce Lempke ◽  
Robert Lynall ◽  
Nicole Hoffman ◽  
Hannes Devos ◽  
Julianne Schmidt
Keyword(s):  
Reaction Time ◽  
Pearson Correlation ◽  
Vital Signs ◽  
Correlation Coefficients ◽  
Direct Methods ◽  
Driving Safety ◽  
Cross Sectional ◽  
Driving Experience ◽  
Simulated Driving ◽  
And Control

ObjectiveTo compare simulated driving reaction time (RT) between concussed and control individuals and examine Driving-RTs relationship with computerized neurocognitive testing RT (CNT-RT).BackgroundConcussed patients have impaired RT and neurocognition following injury that may linger and impair driving performance. Limited research has used direct methods to assess driving-RT post-concussion.Design/MethodsWe employed a cross-sectional laboratory study among 14 concussed and 14 healthy age, sex, and driving experience-matched controls (female: 60%; Age: 20.3 ± 1.1 years). Participants completed driving-RT and CNT-RT (CNS Vital Signs) within 48 hours of asymptomatic (15.9 ± 9.8 days post-concussion). Driving-RT consisted of two simulated driving scenarios: Stoplight (green to yellow stoplight change) and Pedestrian (child running in front of vehicle). CNT-RT outcomes included: simple-, complex-, Stroop-, and composite-RT. Independent t-tests and Hedges' g effect sizes assessed between-group RT differences (seconds), and Pearson correlation coefficients examined relationships between driving-RT and CNT-RT (a = 0.05) outcomes.ResultsConcussed participants demonstrated slower complex-RT than controls (mean difference: 0.06 s; 95% CI: 0.11–0.01; p = 0.03; g = 0.86). No other driving- or CNT-RT outcomes were statistically significant (p = 0.06), but Stoplight- (p = 0.13; g = 0.61) and Pedestrian-RT (p = 0.40; g = 0.36) demonstrated low-to high-magnitude effects for concussed deficits. Complex-, Stroop-, and composite-RT moderately correlated with Stoplight-RT (p 0.05; r range: −0.19 to 0.05).ConclusionsPost-concussion driving- and CNT-RT outcomes overall normalized once asymptomatic, but complex-RT and large magnitude effects may indicate lingering deficits. Driving- and CNT-RT measures moderately correlated with each other, but a lack of strong correlation likely indicates driving responsiveness is not thoroughly assessed using traditional CNT post-concussion, which may have vital driving safety implications.

Research on prediction method of driver's lane changing behavior based on simulated driving

2021 ◽  
Author(s):  
junzhe lu ◽  
jiangtian li ◽  
jie feng ◽  
pengxu huang ◽  
wei wang
Keyword(s):  
Prediction Method ◽  
Lane Changing ◽  
Simulated Driving ◽  
Behavior Based

The Effects of Age and Target Location Uncertainty on Decision Making in a Simulated Driving Task

1992 ◽  
Vol 36 (2) ◽  
pp. 166-170 ◽  
Author(s):  
Thomas A. Ranney ◽  
Lucinda A. S. Simmons
Keyword(s):  
Reaction Time ◽  
Target Location ◽  
Age Groups ◽  
Traffic Signals ◽  
Relevant Information ◽  
Simulated Driving ◽  
Location Uncertainty ◽  
Driving Task ◽  
Older Subjects ◽  
Simulated Driving Task

Spatial localization has been identified as an age-sensitive process in selective attention. Because visual search in driving involves uncertainty concerning the location of information necessary for maneuvering decisions, an experiment was conducted to examine the effects of age and target location uncertainty on a simulated driving task. Seventeen younger subjects (aged 30 to 45 years) and 13 older subjects (aged 65 to 75 years) completed three tasks including two reaction-time tasks and a simulated driving task. The reaction-time tasks included three conditions (simple left, simple right, and two-choice) in a laboratory and in a stationary vehicle. The simulated driving task was conducted on a closed driving course while subjects sat in a stationary vehicle. Subjects were required to select one of two lanes using information presented either on a changeable-message sign or on traffic signals. In the high-certainty condition, subjects were told where to look for relevant information; in the low-certainty condition, they were told that information could appear in either place. Response times were measured from sign or traffic signal onset to the subject's activation of the vehicle turn signal. The results indicated small, non-significant differences between age groups for the reaction-time tasks. Significant age-related differences were found in the simulated lane-selection task. Older subjects were 15% slower overall than the younger subjects. Uncertainty concerning the location of relevant information slowed decision-making speed for all subjects, but proportionately more for the older subjects (16% versus 11% for the younger age group). Uncertainty slowed responses to the changeable message sign more than to traffic signals for subjects in both age groups. The results are consistent with the spatial localization hypothesis, and suggest that older drivers may have more difficulty than younger drivers locating targets in visual search while driving. The results also suggest that effective use of changeable-message signs requires placement in locations with high expectancy, and allowing drivers sufficient time to locate the sign before reading the scrolling message.

Study of Characteristics of Phone Distraction on Drivers and its Influence on Traffic Safety Operation

2014 ◽  
Vol 505-506 ◽  
pp. 1093-1096 ◽  
Author(s):  
Yan Li Ma ◽  
Xue Leng ◽  
Lin Qi
Keyword(s):  
Reaction Time ◽  
Traffic Safety ◽  
Driver Behavior ◽  
Lane Changing ◽  
Emergency Event ◽  
Recognition Ability ◽  
Survey Results ◽  
Spss Software ◽  
Safety Operation ◽  
Driver Skill

In order to study on the characteristics of phone distraction of drivers and its effect on traffic safety and traffic flow. Driver Behavior Questionnaire and Driver Skill Inventory surveys of 139 drivers were conducted combined with the basic situation of China, the SPSS software was used to analyze the processing of the survey results. The study found that the phone distraction will reduce drivers recognition ability of emergency event and driving performance, prolonging the reaction time of driver, it also has certain influence on lane changing behavior and safety following distance. In view of the problems existing in the research, four advices of driving training, publicity of legislation, punishment and technology were put forward.

REACTION TIME AND INTELLIGENCE

1991 ◽  
Vol 1 (1) ◽  
pp. 211-221 ◽  
Author(s):  
Edward Neçka
Keyword(s):  
Reaction Time

Modeling Within-Person Variance in Reaction Time Data of Older Adults

GeroPsych ◽  
2011 ◽  
Vol 24 (4) ◽  
pp. 169-176 ◽  
Author(s):  
Philippe Rast ◽  
Daniel Zimprich
Keyword(s):  
Reaction Time ◽  
Cognitive Aging ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Reaction Time Data ◽  
Scale Model ◽  
Time Data ◽  
Time Task ◽  
The Mean ◽  
Second Wave

In order to model within-person (WP) variance in a reaction time task, we applied a mixed location scale model using 335 participants from the second wave of the Zurich Longitudinal Study on Cognitive Aging. The age of the respondents and the performance in another reaction time task were used to explain individual differences in the WP variance. To account for larger variances due to slower reaction times, we also used the average of the predicted individual reaction time (RT) as a predictor for the WP variability. Here, the WP variability was a function of the mean. At the same time, older participants were more variable and those with better performance in another RT task were more consistent in their responses.

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