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The effects of physical activity on driving ability in older adults

Marmeleira, José Francisco Filipe
Fonte: Universidade Técnica de Lisboa Publicador: Universidade Técnica de Lisboa
Tipo: Tese de Doutorado
Publicado em //2011 ENG
Relevância na Pesquisa
36.68%
Doutoramento em Motricidade Humana na especialidade de Ciências da Motricidade; The research described in this thesis aimed to examine the association between physical activity and driving ability in older drivers. Experimental and observational studies were conducted to evaluate the effects of physical activity both in driving-related abilities and on-the-road driving performance. The investigation was grounded mainly in an information processing approach. Visual attention showed a marked decline with aging. Physical activity levels were positively correlated with visual attention measures, namely processing speed and divided attention. Driving-related abilities and on-the-road driving tests performance were enhanced with an intervention that used a type of exercise that intended to simultaneously mobilize perceptual, cognitive, and physical abilities. Improvements resulting from the exercise intervention took place on several measures of visual attention, behavioral speed, and multitask processing. Positive transfer of learning from the exercise program to the driving task was obtained with relatively short time periods of intervention (two to three months). The type of activities to be included in the exercise programs for older drivers should try to target the same cognitive processes that are required in driving. Results also indicated that the practice of sports on a regular basis for several years has the potential to benefit driving performance. Particularly...

The Impact of Feedback on Self-rated Driving Ability and Driving Self-regulation Among Older Adults

Ackerman, Michelle L.; Crowe, Michael; Vance, David E.; Wadley, Virginia G.; Owsley, Cynthia; Ball, Karlene K.
Fonte: Oxford University Press Publicador: Oxford University Press
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
36.67%
In 129 community-dwelling older adults, feedback regarding qualification for an insurance discount (based on a visual speed of processing test; Useful Field of View) was examined as a prospective predictor of change in self-reported driving ability, driving avoidance, and driving exposure over 3 months, along with physical, visual, health, and cognitive variables. Multiple regression models indicated that after controlling for baseline scores on the outcome measures, failure to qualify was a significant predictor of increased avoidance over 3 months (p = .02) but not change in self-rated driving ability or exposure. Female gender (p = .03) was a significant predictor of subsequent lower self-rated driving ability. Overall, the findings of this study provide support for the role of feedback in the self-monitoring of older adults’ driving behavior through avoidance of challenging driving situations but not through driving exposure or self-rated driving ability.

Self-regulation of driving and its relationship to driving ability among older adults

Baldock, M.; Mathias, J.; McLean, A.; Berndt, A.
Fonte: Pergamon-Elsevier Science Ltd Publicador: Pergamon-Elsevier Science Ltd
Tipo: Artigo de Revista Científica
Publicado em //2006 EN
Relevância na Pesquisa
36.73%
Although it is known that older drivers limit their driving, it is not known whether this self-regulation is related to actual driving ability. A sample of 104 older drivers, aged between 60 and 92, completed a questionnaire about driving habits and attitudes. Ninety of these drivers also completed a structured on-road driving test. A measure of self-regulation was derived from drivers’ self-reported avoidance of difficult driving situations. The on-road driving test involved a standard assessment used to determine fitness to drive. Driving test scores for the study were based on the number of errors committed in the driving tests, with weightings given according to the seriousness of the errors. The most commonly avoided difficult driving situations, according to responses on the questionnaire, were parallel parking and driving at night in the rain, while the least avoided situation was driving alone. Poorer performance on the driving test was not related to overall avoidance of difficult driving situations. Stronger relationships were found between driving ability and avoidance of specific difficult driving situations. These specific driving situations were the ones in which the drivers had low confidence and that the drivers were most able to avoid if they wished to.; M.R.J. Baldock...

Self-regulation of the driving behaviour of older drivers

Baldock, Matthew Robert Justin
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado Formato: 422380 bytes; 768311 bytes; 794155 bytes; 183936 bytes; application/pdf; application/pdf; application/pdf; application/pdf
Publicado em //2004 EN
Relevância na Pesquisa
36.69%
The aim of this thesis was to examine the extent, and correlates, of self-regulation of driving behaviour among a sample of South Australian older drivers (aged 60 or more). The first of four studies was an analysis of official crash statistics in South Australia over a period of five years. The patterns of crash involvement for South Australian older drivers were found to resemble those reported in the literature for other jurisdictions. Lower levels of crash involvement for older drivers in difficult driving situations (peak hour, rain, darkness) were interpreted as indirect evidence for self-regulation of driving behaviour. The second study involved pilot testing a measure developed specifically for assessing the visual attention of older adults (the Computerised Visual Attention Test - CVAT). The CVAT assesses visual attention by measuring target detection and reaction time for central and peripheral stimuli, and in conditions requiring selective and divided attention. The third study involved assessing the test-retest reliability, construct validity and predictive validity of the CVAT. It was concluded that the CVAT is a reliable measure of abilities including, but not restricted to, attention, and that it is correlated with on-road driving ability. The fourth study involved an examination of the driving behaviour and attitudes of 104 drivers aged over 60...

Effects of moderate sleep deprivation and low-dose alcohol on driving simulator performance and perception in young men

Vakulin, A.; Baulk, S.; Catcheside, P.; Anderson, R.; van den Heuvel, C.; Banks, S.; McEvoy, R.
Fonte: Amer Academy Sleep Medicine Publicador: Amer Academy Sleep Medicine
Tipo: Artigo de Revista Científica
Publicado em //2007 EN
Relevância na Pesquisa
36.64%
Study Objective: To determine the combined effects of sleep restriction and low-dose alcohol on driving simulator performance, EEG, and subjective levels of sleepiness and performance in the mid-afternoon. Design: Repeated measures with 4 experimental conditions. Normal sleep without alcohol, sleep restriction alone (4 hours) and sleep restriction in combination with 2 different low blood alcohol concentrations (0.025 g/dL and 0.035 g/dL). Setting: Sleep Laboratory, Adelaide Institute for Sleep Health. Participants: Twenty-one healthy young men, aged 18-30 years, mean (±SD) = 22.5(±3.7) years, BMI = 25(±6.7) kg/m2; all had normal sleep patterns and were free of sleep disorders. Measurements: Participants completed a 70-minute simulated driving session, commencing at 14:00. Driving parameters included steering deviation, braking reaction time, and number of collisions. Alpha and theta EEG activity and subjective driving performance and sleepiness were also measured throughout the driving task. Results: All measures were significantly affected by time. Steering deviation increased significantly when sleep restriction was combined with the higher dose alcohol. This combination also resulted in a significant increase in alpha/theta EEG activity throughout the drive...

The maintenance of wakefulness test and driving simulator performance

Banks, S.; Catcheside, P.; Lack, L.; Grunstein, R.; McEvoy, R.
Fonte: Amer Academy Sleep Medicine Publicador: Amer Academy Sleep Medicine
Tipo: Artigo de Revista Científica
Publicado em //2005 EN
Relevância na Pesquisa
36.64%
Study Objectives: It has been suggested that the Maintenance of Wakefulness Test (MWT) may be clinically useful to assess fitness to drive, yet little is known about the actual relationship between sleep latency and driving performance. This study examined the ability of 2 MWT trials to predict driving-simulator performance in healthy individuals. Patients or Participants: Twenty healthy volunteers (mean age 22.8 years; 9 men). Interventions: NA. Measurements and Results: The MWT and driving-simulator performance were examined under 2 conditions—partial sleep deprivation and a combination of partial sleep deprivation and alcohol consumption. Each subject was studied a week apart, with the order randomly assigned. Subjects completed a nighttime 70-minute AusEd driving simulation task and two 40-minute MWT trials, 1 before (MWT1) and 1 after (MWT2) the driving task. In the sleep-deprived condition, the MWT1 sleep latency was inversely correlated with braking reaction time. During the partial sleep deprivation and alcohol condition, the number of microsleeps during the driving task, steering deviation, braking reaction time, and crashes all negatively correlated with the MWT1 sleep latency. Additionally, construction of a receiver-operator characteristic curve revealed that MWT1 sleep latency in the partial sleep deprivation plus alcohol condition significantly discriminated subjects who had a crash from those who did not. Conclusions: These results indicate that sleep latency on the MWT is a reasonable predictor of driving simulator performance in sleepy...

The effects of sleep restriction and alcohol on simulated driving and cortical function in obstructive sleep apnoea.

Vakulin, Andrew
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2011
Relevância na Pesquisa
36.76%
Obstructive sleep apnoea (OSA) is a common sleep disorder associated with neurobehavioural daytime abnormalities including poor driving simulator performance and an increased risk of motor-vehicle accidents. Treating OSA with continuous positive airway pressure (CPAP) significantly improves many of the daytime consequences of OSA. Until recently it was believed that CPAP treatment can completely resolve excessive daytime sleepiness and neurobehavioural abnormalities associated with OSA. However, recent evidence suggests that compared to results in well-matched healthy subjects, levels of daytime vigilance and cortical activation and some domains of cognitive function in OSA patients may not return to normal, even after effective OSA treatment with good treatment compliance. Sleep restriction and low-dose alcohol consumption are common “life style” factors that have a negative impact on the central nervous system and driving performance in healthy subjects. However, their impact on driving simulator performance and cortical information processing in patients with OSA has not been examined. The hypotheses tested in the work presented in this thesis were that: a) Sleep restriction and alcohol have a greater deleterious effect on driving simulator performance and cortical information processing in untreated OSA patients than in healthy subjects. b) Treatment of severe OSA with CPAP improves...

Time-of-day mediates the influences of extended wake and sleep restriction on simulated driving

Matthews, R.; Ferguson, S.; Zhou, X.; Sargent, C.; Darwent, D.; Kennaway, D.; Roach, G.
Fonte: Marcel Dekker Inc Publicador: Marcel Dekker Inc
Tipo: Artigo de Revista Científica
Publicado em //2012 EN
Relevância na Pesquisa
36.64%
Although a nonlinear time-of-day and prior wake interaction on performance has been well documented, two recent studies have aimed to incorporate the influences of sleep restriction into this paradigm. Through the use of sleep restricted forced desynchrony protocols, both studies reported a time-of-day × sleep restriction interaction, as well as a time-of-day × prior wake × sleep dose three-way interaction. The current study aimed to investigate these interactions on simulated driving performance, a more complex task with ecological validity for the problem of fatigued driving. The driving performance of 41 male participants (mean ± SD: 22.8 ±2.2 yrs) was assessed on a 10-min simulated driving task with the standard deviation of lateral position (SDLAT) measured. Using a between-group design, participants were subjected to either a control condition of 9.33 h of sleep/18.66 h of wake, a moderate sleep-restriction (SR) condition of 7 h of sleep/21 h of wake, or a severe SR condition of 4.66 h of sleep/23.33 h of wake. In each condition, participants were tested at 2.5-h intervals after waking across 7 × 28-h d of forced desynchrony. Driving sessions occurred at nine doses of prior wake, within six divisions of the circadian cycle based on core body temperature (CBT). Mixed-models analyses of variance (ANOVAs) revealed significant main effects of time-of-day...

Do older rural drivers self-regulate their driving? The effects of increased driving importance and limited alternative transportation

Thompson, J.; Baldock, M.; Mathias, J.; Wundersitz, L.
Fonte: Australasian College of Road Safety Publicador: Australasian College of Road Safety
Tipo: Artigo de Revista Científica
Publicado em //2013 EN
Relevância na Pesquisa
36.67%
This study examined whether older rural drivers are restricted in the ability to self-regulate their driving by the importance they attribute to driving and reduced access to alternative transportation. A sample of 170 drivers (aged ≥ 75) from rural and urban areas of South Australia completed a questionnaire on driving importance, alternative means of transportation and driving selfregulation. Rural participants viewed their driving as more important than urban participants did and believed that they had less public transport available to them, used public transport less and had fewer other alternative means of transportation (e.g., taxi) available. However, they did not differ on indices of self-regulation (avoidance of difficult driving situations, reductions in amount of driving and willingness to stop driving). Thus, older rural drivers’ self-regulation is not restricted by increased driving importance or limited alternative transportation. However, limited alternative transportation is still viewed as a disadvantage to mobility.; http://search.informit.com.au/documentSummary;dn=185903710257937;res=IELHEA; JP Thompson, MRJ Baldock, JL Mathias and LN Wundersitz

Effects of speech-based vs handheld e-mailing and texting on driving performance and experience

Terken, J.; Visser, H.J.; Tokmakoff, A.
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Conference paper
Publicado em //2011 EN
Relevância na Pesquisa
36.67%
In this paper we present a voice-enabled service for handling e-mail and SMS messages while driving, and an evaluation of the service. In the evaluation, driving performance was compared in three conditions with a highway driving scenario in a driving simulator: driving only, driving in combination with voice-enabled handling of e-mail/SMS messages, and driving in combination with handheld handling of e-mail/SMS messages. Both objective measurements and subjective judgments about driving performance were collected. The results showed that drivers increased the headway when performing an additional task. With respect to the subjective measures, drivers felt that driving only was safest, and that voice-enabled interaction was safer, enabled better concentration and a better driving performance than handheld interaction. We conclude that handheld interaction is felt to have a stronger impact on driver performance and workload than voice-enabled interaction.; Jacques Terken, Henk-Jan Visser, Andrew Tokmakoff

Artemisa: using and android device as an eco-driving assistant

Corcoba Magaña, Víctor; Muñoz-Organero, Mario
Fonte: Cyber Journals Publicador: Cyber Journals
Tipo: info:eu-repo/semantics/publishedVersion; info:eu-repo/semantics/article Formato: application/pdf
Publicado em /06/2011 ENG
Relevância na Pesquisa
36.66%
The eco-driving concept consists on applying a set of rules while driving to save fuel. Eco-driving has acquired great importance in recent years because it is a way to reduce energy consumption that can be applied to any type of vehicle. However, for these rules to be applied requires a process of continuous learning and motivation. For this reason, many eco-driving assistants have emerged. The problem of these assistants is that they are dependent on the model of vehicle, expensive and imprecise. In this context, this paper presents a novel efficient driving assistant that uses the features of the Smartphone to accurately model the driver's driving style from the point of view of energy consumption and generate eco-driving tips to correct the bad driver's driving habits; Proyecto CCG10-UC3M/TIC-4992 de la Comunidad Autónoma de Madrid y la Universidad Carlos III de Madrid

Eco-driving: ahorro de energía basado en el comportamiento del conductor

Corcoba Magaña, Víctor
Fonte: Universidade Carlos III de Madrid Publicador: Universidade Carlos III de Madrid
Tipo: Tese de Doutorado
SPA
Relevância na Pesquisa
36.7%
El crecimiento del número de vehículos en circulación ha experimentado un fuerte aumento en los últimos 20 años. La generalización del uso del automóvil ha tenido efectos muy positivos en la economía de los países. Sin embargo, también ha provocado grandes problemas debido la contaminación y a la cantidad de energía que consumen. Por otra parte, la mayoría de los vehículos emplean hidrocarburos, que no se encuentran disponibles en todas las regiones, provocando dependencias energéticas entre países. Además, su extracción tiene un impacto muy grande en el medioambiente. Los vehículos se han convertido en un problema importante para los gobiernos y los habitantes, que sufren enfermedades respiratorias provocadas por los gases que emiten. Ante estos inconvenientes, los gobiernos han desarrollado normativas para regular las emisiones de los vehículos. Las conductores también han empezado a exigir vehículos que consuman menos debido al aumento del precio del combustible, convirtiéndose en un factor muy importante a la hora de comprar un vehículo. Todo esto ha contribuido a que los fabricantes introduzcan en los vehículos mejoras orientadas a reducir el consumo de combustible como: optimización del motor, reducción del peso del vehículo...

Cognitive predictors of unsafe driving in older drivers: a meta-analysis

Mathias, J.; Lucas, L.
Fonte: Cambridge University Press Publicador: Cambridge University Press
Tipo: Artigo de Revista Científica
Publicado em //2009 EN
Relevância na Pesquisa
36.66%
Background: Older drivers are at a higher risk of being involved in a motor vehicle accident. However, on-road assessments of all older drivers are impractical, highlighting the need to screen for potentially unsafe drivers. This study undertook a meta-analysis of research examining the cognitive predictors of driving ability in older drivers in order to provide an evidence-based method for screening drivers. Methods: Comprehensive searches were undertaken of the PubMed, PsycINFO, CINAHL, and Health-Source Nursing electronic databases between 1980 and 2007 in order to identify studies that examined cognitive differences between drivers aged over 55 years who either passed or failed a driving assessment. Twenty-one studies were eligible for inclusion. Weighted Cohen's d effect sizes, percentage overlap statistics, Fail-safe Ns and 95% CIs were calculated for all cognitive tests. Results: The best predictors of on-road driving were the Ergovision and Useful Field of View (UFOV) tests, a complex RT task, Paper Folding task, Dot Counting, WMS Visual Reproduction, and Computerized Visual Attention Task. Simulator driving performance was best predicted by the Benton Line Orientation Task, Clock Drawing, a Driver Scanning task, the UFOV, WAIS Picture Arrangement and MMSE. Finally...

Not all older adults have insight into their driving abilities: evidence from an on-road assessment and implications for policy

Wood, Joanne M.; Lacherez, Philippe F.; Anstey, Kaarin J.
Fonte: Oxford University Press; Gerontological Society of America Publicador: Oxford University Press; Gerontological Society of America
Tipo: Artigo de Revista Científica Formato: 8 pages
Relevância na Pesquisa
36.72%
PURPOSE. To compare self-reported driving ability with objective measures of on-road driving performance in a large cohort of older drivers. METHODS. Two hundred and seventy community-living adults aged 70–88 years recruited via the electoral roll completed a standardized assessment of on-road driving performance and questionnaires determining perceptions of their own driving ability, confidence, and driving difficulties. Retrospective self-reported crash data over the previous 5 years were recorded. RESULTS. Participants reported difficulty with only selected driving situations, including driving into the sun, in unfamiliar areas, in wet conditions, and at night or dusk. The majority of participants rated their own driving as good to excellent. Of the 47 (17%) drivers who were rated as potentially unsafe to drive, 66% rated their own driving as good to excellent. Drivers who made critical errors, where the driving instructor had to take control of the vehicle, had no lower self-rating of driving ability than the rest of the group. The discrepancy in self-perceptions of driving ability and participants’ safety rating on the on-road assessment was significantly associated with self-reported retrospective crash rates, where those drivers who displayed greater overconfidence in their own driving were significantly more likely to report a crash. CONCLUSIONS. This study demonstrates that older drivers with the greatest mismatch between actual and self-rated driving ability pose the greatest risk to road safety. Therefore...

Eco-driving performance assessment with in-car visual and haptic feedback assistance

AZZI, Slim; REYMOND, G.; MERIENNE, Frédéric; KEMENY, Andras
Fonte: ASME Publicador: ASME
EN
Relevância na Pesquisa
36.66%
In this experiment, 28 participants completed an urban driving task in a highly immersive driving simulator at Renault’s Technical Centre for Simulation. This simulator provides a 150 deg field of view in a fully instrumented cockpit. Two different eco-driving assistance devices were added: a visual display on the midconsole and a force feedback system on the gas pedal, in order to apply an additionnal reaction torque on drivers’ foot. The feedback information was computed by comparing the car’s instant acceleration with an optimal acceleration level based on a proprietary consumption model of a Renault diesel engine. This experiment has three main goals: I. Assess the contribution of verbal instructions to eco-driving performance; II. Quantify the additional contribution generated by two eco-driving assistance systems (visual and haptic); III. Measure drivers’ acceptance of haptic eco-driving assistance system. Basic eco-driving instructions, such as changing gears under 2000 Rpm, yield significant decrease of polluting emissions. Assisting drivers with visual, haptic, or visual-haptic on-board devices, in addition to low engine speed verbal instructions, lead to supplementary significant savings of polluting emissions. There is no significant difference between assistance feedback type; suggesting that the haptic feedback provides the same ecoperformance as visual feedback. In particular...

Enhanced game mode for Eco-driving simulator

BELOUFA, Sabrina; CAUCHARD, Fabrice; VEDRENNE, Joël; BOUCHEIX, Jean-Michel; KEMENY, Andras; MERIENNE, Frédéric; VAILLEAU, Benjamin
Fonte: Arts et Métiers ParisTech Publicador: Arts et Métiers ParisTech
EN
Relevância na Pesquisa
36.64%
The use of driving simulators is part of RENAULT’s approach for eco-driving development. The geDRIVER project objectives were to: develop ECO mode for all, taking into account eco-driving criteria; develop a training business offer and develop specific assistance HMI (Human Machine Interface). In terms of driving simulation, this induced a need to develop a wide range deployment training tools integrating multisensorial feedback, enhanced gameplay for scenario design, and driving analysis tool into ECO² simulator. Several experiments were carried out, in order to evaluate validity of simulation for an eco-driving training purpose. Results show that visual indicators is the most appropriate and that the eco-driving rule “gear up at 2500 rpm” is the most efficient. At last, the simulator appears to be an efficient tool, to understand and integrate eco-driving rules, and to improve economies in terms of CO2 emissions.

The Influence of the feedback control of the hexapod platform of the SAAM dynamic driving simulator on neuromuscular dynamics of the drivers

AYKENT, Baris; PAILLOT, Damien; MERIENNE, Frédéric; KEMENY, Andras
Fonte: INRETS Publicador: INRETS
EN
Relevância na Pesquisa
36.71%
Multi sensorial cues (visual, auditory, haptic, inertial, vestibular, neuromuscular) [Ang2] play important roles to represent a proper sensation (objectively) and so a perception (subjectively as cognition) in driving simulators. Driving simulator aims at giving the sensation of driving as in a real case. For a similar situation, the driver has to react in the same way as in reality in terms of ‘self motion’. To enable this behavior, the driving simulator must enhance the virtual immersion of the subject in the driving situation. The subject has to perceive the motion of his own body in the virtual scene of the virtual car as he will have in a real car. For that reason, restituting the inertial cues on driving simulators is essential to acquire a more proper functioning [Kol20]. Simulation sickness has been one of the main research topics for the driving simulators. It was assessed between dynamic and static simulators [Cur7], [Wat32]). For a braking maneuver, [Sie29] stated that if the motion platform is activated the bias in reaching increased levels of decelerations was reduced strongly comparing to inactivated platform case. However, there has been lack in publications of vehicle-vestibular cue conflict based illness rating approach and its correlation with the neuromuscular dynamics for that kind of research. In order to reduce the simulator sickness...

Ubiquitous sensorization for multimodal assessment of driving patterns

Silva, Fábio; Analide, Cesar; Gonçalves, Celestino; Sarmento, João
Fonte: Springer Verlag Publicador: Springer Verlag
Tipo: Parte de Livro
Publicado em /05/2014 ENG
Relevância na Pesquisa
36.66%
Sustainability issues and sustainable behaviours are becoming concerns of increasing signi cance in our society. In the case of transportation systems, it would be important to know the impact of a given driving behaviour over sustainability factors. This paper describes a system that integrates ubiquitous mobile sensors available on devices such as smartphones, intelligent wristbands and smartwatches, in order to determine and classify driving patterns and to assess driving e ficiency and driver's moods. It first identi fies the main attributes for contextual information, with relevance to driving analysis. Next, it describes how to obtain that information from ubiquitous mobile sensors, usually carried by drivers. Finally, it addresses the multimodal assessment process which produces the analysis of driving patterns and the classi cation of driving moods, promoting the identifi cation of either regular or aggressive driving patterns, and the classi fication of mood types between aggressive and relaxed. Such an approach enables ubiquitous sensing of personal driving patterns across diff erent vehicles, which can be used in sustainability frameworks, driving alerts and recommendation systems.; This work is part-funded by ERDF - European Regional Development Fund through the COMPETE Programme (operational programme for competitiveness) and by National Funds through the FCT Fundação para a Ciência e a Tecnologia (Portuguese Foundation for Science and Technology) within project FCOMP-01-0124-FEDER-028980 (PTDC/EEI-SII/1386/2012). It is also supported by a doctoral grant...

Cognitive, sensory and physical factors enabling driving safety in older adults.

Anstey, Kaarin; Wood, Joanne; Lord, Stephen; Walker, Janine
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
36.66%
We reviewed literature on cognitive, sensory, motor and physical factors associated with safe driving and crash risk in older adults with the goal of developing a model of factors enabling safe driving behaviour. Thirteen empirical studies reporting associations between cognitive, sensory, motor and physical factors and either self-reported crashes, state crash records or on-road driving measures were identified. Measures of attention, reaction time, memory, executive function, mental status, visual function, and physical function variables were associated with driving outcome measures. Self-monitoring was also identified as a factor that may moderate observed effects by influencing driving behavior. We propose that three enabling factors (cognition, sensory function and physical function/medical conditions) predict driving ability, but that accurate self-monitoring of these enabling factors is required for safe driving behaviour.

Associations of Biomarkers, Cognition and Self Reports of Sensory Function with Self-Reported Driving Behaviour and Confidence

Anstey, Kaarin; Smith, Glen
Fonte: S Karger AG Publicador: S Karger AG
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
36.67%
Background: Older adults report self-regulating their driving habits but little is known about factors associated with driving habits and driving confidence. Objective: We aimed to evaluate cognitive performance, biomarkers and self-reported sensory function as correlates of self-reported driving behaviour and confidence. Methods: A volunteer sample of 153 drivers aged between 60 and 90 were assessed on biomarkers (vision, hearing, (vibration sense, grip strength and FEV1), and cognitive performance. A subsample of 121 also completed a questionnaire on driving behaviour, driving confidence and self-reported sensory function. Structural equation modelling techniques were used to evaluate the relative importance of subjective and performance-based variables. Results: Driving behaviour and confidence were associated with cognitive performance, biomarkers, chronological age and one question on self-rated hearing difficulty. Structural equation modelling showed that biomarkers were most important in predicting self-reported driving behaviour. Conclusion: These results suggest that individuals self-monitor according to their physiological well-being and report their driving behaviour accordingly.