Auditory Warning Times to cue Platform Perturbation During Walking
Advisor Information
Nathaniel Hunt
Location
MBSC 201
Presentation Type
Poster
Start Date
6-3-2020 10:45 AM
End Date
6-3-2020 12:00 PM
Abstract
Slips and falls are a major problem. There is reason to believe that meaningful auditory cues can be of help in balance recovery when experiencing a balance disturbance. Current research leaves a knowledge gap on how meaningful auditory cues can affect balance recovery during walking, the context in which most slips occur, nor does it address how additional complexity in the cueing system will affect reactive movements.Communication of cues from an artificial system can augment the set of available sensory information to improve reactive movement speed and specificity. In order to address the knowledge gap in understanding how auditory cues effect balance recovery during locomotion we have initiated a study to examine recovery measures taken to regain balance during walking where subjects will experience a variety of complex salient auditory cues. Participants will be outfitted with a full-body retroreflective marker set and will then be set up on the CAREN machine (MoTek, San Jose, California); a computer assisted rehabilitation environment complete with a split-belt treadmill on a platform that is able to move in the six degrees of freedom. Real-time feedback of marker position is used to create platform perturbations at a left heel strike. Auditory cues are differing tones given for 5 ms each. Participants will experience a base cue indicating that there will be a platform perturbation, a left/right cue indicating the general direction the platform perturbation is in, and a final cue indicating exactly which degree the perturbation will occur; 30, 90, 150, 210, 270, or 330.
Auditory Warning Times to cue Platform Perturbation During Walking
MBSC 201
Slips and falls are a major problem. There is reason to believe that meaningful auditory cues can be of help in balance recovery when experiencing a balance disturbance. Current research leaves a knowledge gap on how meaningful auditory cues can affect balance recovery during walking, the context in which most slips occur, nor does it address how additional complexity in the cueing system will affect reactive movements.Communication of cues from an artificial system can augment the set of available sensory information to improve reactive movement speed and specificity. In order to address the knowledge gap in understanding how auditory cues effect balance recovery during locomotion we have initiated a study to examine recovery measures taken to regain balance during walking where subjects will experience a variety of complex salient auditory cues. Participants will be outfitted with a full-body retroreflective marker set and will then be set up on the CAREN machine (MoTek, San Jose, California); a computer assisted rehabilitation environment complete with a split-belt treadmill on a platform that is able to move in the six degrees of freedom. Real-time feedback of marker position is used to create platform perturbations at a left heel strike. Auditory cues are differing tones given for 5 ms each. Participants will experience a base cue indicating that there will be a platform perturbation, a left/right cue indicating the general direction the platform perturbation is in, and a final cue indicating exactly which degree the perturbation will occur; 30, 90, 150, 210, 270, or 330.