Vestibular rehabilitation using a virtual environment for driver safety

10.32920/ryerson.14653101 ◽

2021 ◽

Author(s):

Leo Kant

Keyword(s):

Reaction Time ◽

Virtual Environment ◽

Sensory Input ◽

Driving Simulator ◽

Vestibular Rehabilitation ◽

Experimental Results ◽

Driver Safety ◽

Time Test ◽

Egocentric Navigation ◽

Reflex Time

Driving is a necessity of life, and it requires multi-sensory input and processing. Often vestibular impaired patients suffer from dysfunctional sensory input that impairs their driving. Therefore, driver's attention, and egocentric navigation skills are investigated in this project through the use of a spaceball driving simulator. This thesis clarly demonstrates and specifies the steps of implementation of a driving simulator into the spaceball. Driver attention was tested through the use of computer and audio reflex time and was used to analyze the improvement in reaction time. Seat perturbation reflex time test was used to analyze the driver egomotion awareness on the simulator. The experimental results illustrate the improvement in the driving rehabilitation field of reaction time which leads to the conclusion that the visual-proprioceptive virtual driving simulator could provide treatment to the vestibular impaired patients.

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Simple Reaction Time Test

PsycTESTS Dataset ◽

10.1037/t05446-000 ◽

2012 ◽

Keyword(s):

Reaction Time ◽

Simple Reaction Time ◽

Simple Reaction ◽

Time Test ◽

Reaction Time Test

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Examination of Driver Visual and Cognitive Responses to Billboard Elicited Passive Distraction Using Eye-Fixation Related Potential

Sensors ◽

10.3390/s21041471 ◽

2021 ◽

Vol 21 (4) ◽

pp. 1471

Author(s):

Yongxiang Wang ◽

William Clifford ◽

Charles Markham ◽

Catherine Deegan

Keyword(s):

Visual Information ◽

Driving Simulator ◽

Tracking System ◽

Eye Gaze ◽

Driver Distraction ◽

Experimental Results ◽

Human Information Processing ◽

Cognitive Responses ◽

Information Processing Model ◽

Eye Fixation

Distractions external to a vehicle contribute to visual attention diversion that may cause traffic accidents. As a low-cost and efficient advertising solution, billboards are widely installed on side of the road, especially the motorway. However, the effect of billboards on driver distraction, eye gaze, and cognition has not been fully investigated. This study utilises a customised driving simulator and synchronised electroencephalography (EEG) and eye tracking system to investigate the cognitive processes relating to the processing of driver visual information. A distinction is made between eye gaze fixations relating to stimuli that assist driving and others that may be a source of distraction. The study compares the driver’s cognitive responses to fixations on billboards with fixations on the vehicle dashboard. The measured eye-fixation related potential (EFRP) shows that the P1 components are similar; however, the subsequent N1 and P2 components differ. In addition, an EEG motor response is observed when the driver makes an adjustment of driving speed when prompted by speed limit signs. The experimental results demonstrate that the proposed measurement system is a valid tool in assessing driver cognition and suggests the cognitive level of engagement to the billboard is likely to be a precursor to driver distraction. The experimental results are compared with the human information processing model found in the literature.

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Acceptable Levels of Tonal and Broad-Band Repetitive and Continuous Sounds during the Performance of Nonauditory Tasks

Perceptual and Motor Skills ◽

10.2466/pms.1995.81.3.803 ◽

1995 ◽

Vol 81 (3) ◽

pp. 803-816 ◽

Cited By ~ 7

Author(s):

Ulf Landström ◽

Anders Kjellberg ◽

Marianne Byström

Keyword(s):

Reaction Time ◽

Sound Pressure ◽

Broad Band ◽

Reaction Time Task ◽

Simple Reaction Time Task ◽

Reasoning Test ◽

Band Noise ◽

Time Test ◽

The Difference ◽

Reaction Time Test

Three groups of 24 subjects were exposed to a 1000–Hz tone or broad band noise in a sound chamber. During the exposures subjects were engaged in an easy reaction time test or a difficult grammatical reasoning test. For each exposure and work subjects adjusted the noise to a tolerance level defined by its interference with task performance. During the simple reaction-time task significantly higher sound-pressure levels were accepted than during the reasoning test. At the tonal exposure, much lower levels were accepted than during the exposure to broad-band noise. For continuous sound exposures much higher levels were accepted than for noncontinuous exposures. For tonal exposures the difference was approximately 5 dB, for the broad-band exposures approximately 9 dB. In a separate study the effects of the noncontinuity of the noise and pauses were analysed. The raised annoying effect of the noncontinuous noise was not more affected by the noncontinuity of the noise periods than by the noncontinuity of the pauses. The results imply that the annoying reactions to the sound will be increased for repetitive noise and that the reaction is highly influenced by the over-all noncontinuity of the exposure.

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The Effects of Telematics on Driver Distraction

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/154193120204602219 ◽

2002 ◽

Vol 46 (22) ◽

pp. 1868-1870 ◽

Cited By ~ 1

Author(s):

Patrick Siebert ◽

Mustapha Mouloua ◽

Kendra Burns ◽

Jennifer Marino ◽

Lora Scagliola ◽

...

Keyword(s):

Secondary Task ◽

Cell Phone ◽

Driving Simulator ◽

Systems Design ◽

Driver Distraction ◽

Cellular Phones ◽

Driver Safety ◽

A Cell ◽

Driving Task ◽

Simulated Driving Task

This study used both cellular phones and analogue radio to measure driver distraction and workload in a low fidelity driving simulator. Thirty-four participants performed a simulated driving task while using either a cell phone or a radio in conjunction with a secondary task assessing their spare attentional capacity. The results showed that more lane deviations were made during the cell phone and radio tuning use than both of the pre-allocation and Post-allocation phases. The secondary task errors were also higher during both the cell phone and radio tuning allocation phase than the pre-allocation and post-allocation phases. These findings indicate the greater workload load levels associated with the use of telemetric devices. These findings have major implications for driver safety and telemetric systems design.

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NINJA TURTLES RACE: A REACTION TIME TEST TO STUDY AND ASSESS THE FOCUS OF ATTENTION, MOTOR, AND COGNITIVE SKILLS IN CHILDREN'S LEARNING PROCESSES

INTED2021 Proceedings ◽

10.21125/inted.2021.0983 ◽

2021 ◽

Author(s):

Diana Sousa ◽

António Coelho ◽

Gilberto Bernardes ◽

Nuno Correia

Keyword(s):

Reaction Time ◽

Cognitive Skills ◽

Focus Of Attention ◽

Learning Processes ◽

Children’S Learning ◽

Time Test ◽

Reaction Time Test ◽

Children's Learning

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A New Partitioning Method Based on AOI Model Matching in CVE Systems

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.241-244.3116 ◽

2012 ◽

Vol 241-244 ◽

pp. 3116-3120

Author(s):

Xiao Mei Hu ◽

Biao Wang

Keyword(s):

Virtual Environment ◽

Virtual World ◽

Experimental Results ◽

Model Matching ◽

Collaborative Virtual Environment ◽

Area Of Interest ◽

Key Issues ◽

Partitioning Problem ◽

Server Architecture

Collaborative Virtual Environment (CVE) system supports a large number of users to explore a virtual world and interact with each other through networks, so one of the key issues in the design of scalable CVE systems is the partitioning problem. Existing partitioning algorithms in CVE systems based on multiple-server architecture, in our opinion, hardly consider the communication character of virtual environment. In this paper, we propose a new partitioning method based on area of interest (AOI) model matching to improve the quality of partitioning. The experimental results show preliminarily that our partitioning approach based on AOI model matching does decrease the traffic among the servers in the system and improve the partitioning performance.

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INFLUENCE OF STICKY RICE AND ANIONIC POLYACRYLAMIDE ON THE CRYSTALLIZATION OF CALCIUM CARBONATE IN CHINESE ORGANIC SANHETU

Surface Review and Letters ◽

10.1142/s0218625x15500730 ◽

2015 ◽

Vol 22 (06) ◽

pp. 1550073 ◽

Cited By ~ 3

Author(s):

HUI LIU ◽

CHANGSHENG PENG ◽

MIN DAI ◽

QINGBAO GU ◽

SHAOXIAN SONG

Keyword(s):

Reaction Time ◽

Calcium Carbonate ◽

Organic Material ◽

Organic Materials ◽

Experimental Results ◽

Additive Concentration ◽

Reactant Concentration ◽

Natural Organic Material ◽

Anionic Polyacrylamide

The crystallization of calcium carbonate ( CaCO 3) in soil controlled by natural organic material was considered a very important reason to enhance the property of ancient Chinese organic Sanhetu (COS), but how the organic material affected the crystallization of CaCO 3 in COS is still unclear. In this paper, a natural organic material (sticky rice, SR) and a synthetic organic material (anionic polyacrylamide, APAM) were selected as additives to investigate their effect on the crystallization of CaCO 3. The experimental results showed that the morphology and size of CaCO 3 crystals could be affected by the concentration of additives and reaction time, while only the size of CaCO 3 crystals could be affected by the concentration of reactant. Although the morphology and size of CaCO 3 crystals varied greatly with the variation of additive concentration, reactant concentration and reaction time, the polymorph of CaCO 3 crystals were always calcite, according to SEM/EDX, XRD and FTIR analyses. This study may help us to better understand the mechanism of the influence of organic materials on CaCO 3 crystallization and properties of COS.

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