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Research Spending & Results

Award Detail

Awardee:UNIVERSITY OF FLORIDA
Doing Business As Name:University of Florida
PD/PI:
  • David B Kaber
  • (352) 294-7700
  • dkaber@ufl.edu
Co-PD(s)/co-PI(s):
  • Jaime Ruiz
Award Date:09/12/2019
Estimated Total Award Amount: $ 480,000
Funds Obligated to Date: $ 480,000
  • FY 2019=$480,000
Start Date:10/01/2019
End Date:09/30/2022
Transaction Type:Grant
Agency:NSF
Awarding Agency Code:4900
Funding Agency Code:4900
CFDA Number:47.070
Primary Program Source:040100 NSF RESEARCH & RELATED ACTIVIT
Award Title or Description:CHS: Medium: Collaborative Research: Electromyography (EMG)-Based Assistive Human-Machine Interface Design: Cognitive Workload and Motor Skill Learning Assessment
Federal Award ID Number:1900044
DUNS ID:969663814
Parent DUNS ID:159621697
Program:CHS-Cyber-Human Systems
Program Officer:
  • Tonya Smith-Jackson
  • (703) 292-0000
  • tsmithja@nsf.gov

Awardee Location

Street:1 UNIVERSITY OF FLORIDA
City:GAINESVILLE
State:FL
ZIP:32611-2002
County:Gainesville
Country:US
Awardee Cong. District:03

Primary Place of Performance

Organization Name:University of Florida
Street:207 Grinter Hall
City:Gainesville
State:FL
ZIP:32611-5500
County:Gainesville
Country:US
Cong. District:03

Abstract at Time of Award

CHS: Medium: Collaborative Research: Electromyography (EMG)-based Assistive Human-Machine Interface Design: Cognitive Workload and Motor Skill Learning Assessment Over 100,000 people in the United States have upper limb amputations. Such amputations are usually associated with substantial disabilities. Activities of daily living may no longer be possible or require additional effort and time. To restore functional ability as fully as possible, amputee patients use upper-limb prostheses controlled by Electromyography (EMG)-based human-machine interfaces (HMIs). However, over 50% of prosthetic users report device dissatisfaction and abandonment due to frustration in use. In order to increase accessibility and utility of EMG-based assistive HMIs, it is critical to investigate the cognitive workload associated with using these systems for supporting motor skill rehabilitation and activities of daily living. In addition, with differences in individual muscle make-up and control, it is necessary to customize EMG-based assistive HMIs to particular patient conditions. However, at this time, there exists little to no general guidance on what interface control features may be more or less conducive to supporting learning and performance of psychomotor tasks. By testing various control interface prototypes in a validated motor skill learning simulation as well as high-demand, real-time tasks, specifically simulated driving, the investigators seek to provide design guidance for engineers to develop EMG-based assistive HMI technologies for various applications. This project also provides education and training for young industrial, computer science, and biomedical engineering students in assistive technology design and development. The technical aims of the project are divided into three thrusts including (1) identifying cognitive load costs of EMG-based HMIs using computational cognitive performance models and machine learning algorithms - The developed cognitive workload models will be used for predicting learning potential and performance outcomes of variations of control interface designs, (2) demonstrating fundamental motor skill training through integration of the EMG-based HMI with virtual reality (VR) simulations - In particular, the investigators are interested in assessing whether the difference in cognitive load of using EMG-based HMIs translates to variations in learning potential and retention of psychomotor task skills, (3) translating fundamental motion components trained in the VR psychomotor test to a real-world application by demonstrating the possibility of operational driving control with an EMG-based HMI in a high-fidelity driving simulator - This thrust provides empirical validation for the findings regarding differences in cognitive load of using EMG-based HMIs, as well as the potential for increased learning and operational task performance. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

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