Name
Title | ||
|---|---|---|
Generating tactile afferent stimulation patterns for slip and touch feedback in neural prosthetics. |
Abstract | ||
|---|---|---|
Current prosthetic limbs are limited by a lack of tactile feedback. Slip feedback is particularly important to inform grip. Object slip is marked by both a change in the normal grip force applied and a change in force tangential to the fingertips. In this study, we demonstrate that a new multi-axial tactile sensor composed of gold nanoparticle strain gauges is able to record slip and reconstruct the X, Y, and Z forces incident on the sensor's surface due to a slipping object. We entered the X, Y, and Z force components generated by the slip event into a noisy leaky integrate and fire model to simulate the firing responses of SA1 and FA1 afferents. We also recorded a uniaxial normal force input representative of tactile contact. A single set of SA1 model and FA1 model parameters generated realistic firing patterns for both the slip and normal force recordings. These results suggest that canonical SA1 and FA1 afferent models could be used to generate biomimetic electrical stimulation patterns for both slip and touch stimuli. When used to activate the tactile afferents of an amputee, these electrical stimulation patterns could create natural and distinguishable slip and touch percepts for closed loop control of an upper limb neural prosthesis. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/EMBC.2013.6610900 | EMBC |
Keywords | Field | DocType |
slip event,canonical sa1 afferent models,biomechanics,nanomedicine,gold,upper limb neural prosthesis,nanoparticles,slip,normal force recordings,nanosensors,tactile contact,neurophysiology,slip force recordings,noisy leaky integration,strain gauges,slipping object,realistic firing patterns,biomimetic electrical stimulation patterns,firing responses,prosthetics,touch stimuli,touch feedback,biomedical equipment,tactile afferent stimulation patterns,sa1 afferents,force components,uniaxial normal force input representative,bioelectric phenomena,tactile sensors,tactile feedback,closed loop control,multiaxial tactile sensor,gold nanoparticle strain gauges,au,fa1 afferents,canonical fa1 afferent models,force tangential,normal grip force,prosthetic limbs,closed loop systems,slip feedback,slip stimuli,biomimetics,force,strain | Slipping,Neuroprosthetics,Computer vision,Neurophysiology,Computer science,Slip (materials science),Neural Prosthesis,Electronic engineering,Artificial intelligence,Normal force,Strain gauge,Tactile sensor | Conference |
Volume | ISSN | Citations |
2013 | 1557-170X | 0 |
PageRank | References | Authors |
0.34 | 4 | 7 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Danielle M Rager | 1 | 0 | 0.34 |
| Darren Alvares | 2 | 0 | 0.34 |
| Ingvars Birznieks | 3 | 1 | 3.19 |
| Stephen J Redmond | 4 | 122 | 25.75 |
| john w morley | 5 | 5 | 4.02 |
| Lovell Nigel H. | 6 | 70 | 28.52 |
| Richard M Vickery | 7 | 0 | 0.68 |