1 / 5

Aman Sharma, MHSc; Ricardo Torres-Moreno, PhD; Karl Zabjek, PhD; Jan Andrysek, PhD

Toward an artificial sensory feedback system for prosthetic mobility rehabilitation: Examination of sensorimotor responses. Aman Sharma, MHSc; Ricardo Torres-Moreno, PhD; Karl Zabjek, PhD; Jan Andrysek, PhD. Aim Examine sensorimotor responses to mobility-relevant stimuli. Relevance

Download Presentation

Aman Sharma, MHSc; Ricardo Torres-Moreno, PhD; Karl Zabjek, PhD; Jan Andrysek, PhD

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Toward an artificial sensory feedback system for prosthetic mobility rehabilitation: Examination of sensorimotor responses Aman Sharma, MHSc; Ricardo Torres-Moreno, PhD; Karl Zabjek, PhD; Jan Andrysek, PhD

  2. Aim • Examine sensorimotor responses to mobility-relevant stimuli. • Relevance • People with lower-limb amputation have reduced mobility due to loss of sensory information, which may be restored by artificial sensory feedback systems built into prostheses. • For an effective system, it is important to understand how humans sense, interpret, and respond to the feedback that would be provided.

  3. Method • Applied stimuli (vibrations) to thigh region. • Responses involved leg movements. • Performed 3 experiments to examine effects of: • Location of stimuli. • Frequency of stimuli. • Means for providing response. • Measured: • Reaction time (RT): duration between application of stimulus and initiation of response. • Response accuracy.

  4. Results • Overall average RTs for 1 response option: • 0.808 s. • Response accuracies: • >90%. • Higher vibration frequencies in anterior regions of thigh produced fastest RTs. • RTs increased when participants were given >1 stimulus and response option.

  5. Conclusion • Long sensorimotor responses may be limiting factor in development of artificial feedback system for mobility rehabilitation applications. • However, feed-forward techniques could potentially address these limitations.

More Related