Personne :
Simoneau, Martin

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Université Laval. Département de kinésiologie
Identifiant Canadiana

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Voici les éléments 1 - 3 sur 3
  • Publication
    Accès libre
    Alternative avenues in the assessment of driving capacities in older drivers and implications for training
    (Cambridge University Press, 2010-12-01) Simoneau, Martin; Teasdale, Normand; Gamache, Pierre.; Hudon, Carol
    The population aging, combined with the overrepresentation of older drivers in car crashes, engendered a whole body of research destined at finding simple and efficient assessment methods of driving capacities. However, this quest is little more than a utopian dream, given that car crashes and unsafe driving behaviours can result from a plethora of interacting factors. This review highlights the main problems of the current assessment methods and training programs, and presents theoretical and empirical arguments justifying the need of reorienting the research focus. Our discussion is elaborated in light of the fundamental principle of specificity in learning and practice. We also identify overlooked variables that are deterministic when assessing, and training, a complex ability like driving. We especially focus on the role of the sensorimotor transformation process. Finally, we propose alternative methods that are in-line with the recent trends in educational programs that use virtual reality and simulation technologies.
  • Publication
    Accès libre
    Change in the natural head-neck orientation momentarily altered sensorimotor control during sensory transition
    (2017-01-17) Simoneau, Martin; Teasdale, Normand; Laurendeau, Simon; Xu, Isabelle
    Achilles tendon vibration generates proprioceptive information that is incongruent with the actual body position; it alters the perception of body orientation leading to a vibration-induced postural response. When a person is standing freely, vibration of the Achilles tendon shifts the internal representation of the verticality backward thus the vibration-induced postural response realigned the whole body orientation with the shifted subjective vertical. Because utricular otoliths information participates in the creation of the internal representation of the verticality, changing the natural orientation of the head-neck system during Achilles tendon vibration could alter the internal representation of the earth vertical to a greater extent. Consequently, it was hypothesized that compared to neutral head-neck orientation, alteration in the head-neck orientation should impair balance control immediately after Achilles tendon vibration onset or offset (i.e., sensory transition) as accurate perception of the earth vertical is required. Results revealed that balance control impairment was observed only immediately following Achilles tendon vibration offset; both groups with the head-neck either extended or flexed showed larger body sway (i.e., larger root mean square scalar distance between the center of pressure and center of gravity) compared to the group with the neutral head-neck orientation. The fact that balance control was uninfluenced by head-neck orientation immediately following vibration onset suggests the error signal needs to accumulate to a certain threshold before the internal representation of the earth vertical becomes incorrect.
  • Publication
    Accès libre
    Older adults with mild cognitive impairments show less driving errors after a multiple sessions simulator training program but do not exhibit long term retention
    (Frontiers Media S.A., 2016-12-27) Germain Robitaille, Mathieu; Moszkowicz, Thierry; Hudon, Lisa; Simoneau, Martin; Teasdale, Normand; Laurendeau, Denis; Duchesne, Simon; Hudon, Carol; Bherer, Louis
    The driving performance of individuals with mild cognitive impairment (MCI) is suboptimal when compared to healthy older adults. It is expected that the driving will worsen with the progression of the cognitive decline and thus, whether or not these individuals should continue to drive is a matter of debate. The aim of the study was to provide support to the claim that individuals with MCI can benefit from a training program and improve their overall driving performance in a driving simulator. Fifteen older drivers with MCI participated in five training sessions in a simulator (over a 21-day period) and in a 6-month recall session. During training, they received automated auditory feedback on their performance when an error was noted about various maneuvers known to be suboptimal in MCI individuals (for instance, weaving, omitting to indicate a lane change, to verify a blind spot, or to engage in a visual search before crossing an intersection). The number of errors was compiled for eight different maneuvers for all sessions. For the initial five sessions, a gradual and significant decrease in the number of errors was observed, indicating learning and safer driving. The level of performance, however, was not maintained at the 6-month recall session. Nevertheless, the initial learning observed opens up possibilities to undertake more regular interventions to maintain driving skills and safe driving in MCI individuals.