Alpha-Band Activity in Parietofrontal Cortex Predicts Future Availability of Vibrotactile Feedback in Prosthesis Use

Johnson, John T.; Gavetti De Mari, Daniele; Doherty, Harper; Hammond III, Frank L.; Wheaton, Lewis A.

Title:

Alpha-Band Activity in Parietofrontal Cortex Predicts Future Availability of Vibrotactile Feedback in Prosthesis Use

dc.contributor.author	Johnson, John T.
dc.contributor.author	Gavetti De Mari, Daniele
dc.contributor.author	Doherty, Harper
dc.contributor.author	Hammond III, Frank L.
dc.contributor.author	Wheaton, Lewis A.
dc.contributor.corporatename	Georgia Institute of Technology. School of Biological Sciences	en_US
dc.date.accessioned	2022-02-14T21:11:13Z
dc.date.available	2022-02-14T21:11:13Z
dc.date.issued	2021
dc.description	Source code and preprocessed electroencephalographic and kinematics data.	en_US
dc.description.abstract	Prosthesis disuse and abandonment is an ongoing issue in upper-limb amputation. In addition to lost structural and motor function, amputation also results in decreased task-specific sensory information. One proposed remedy is augmenting somatosensory information using vibrotactile feedback to provide tactile feedback of grasping objects. While the role of frontal and parietal areas in motor tasks is well established, the neural and kinematic effects of this augmented vibrotactile feedback remain in question. In this study, we sought to understand the neurobehavioral effects of providing augmented feedback during a reach-grasp -transport task. Ten persons with sound limbs performed a motor task while wearing a prosthesis simulator with and without vibrotactile feedback. We hypothesized that providing vibrotactile feedback during prosthesis use would increase activity in frontal and parie tal areas and improve grasp-related behavior. Results show that anticipation of upcoming vibrotactile feedback may be encoded in motor and parietal areas during the reach-to-grasp phase of the task. While grasp aperture is unaffected by vibrotactile feedback, the availability of vibrotactile feedback does lead to a reduction in velocity during object transport. These results help shed light on how engineered feedback is utilized by prostheses users and provide methodologies for further assessment in advanced prosthetics research.	en_US
dc.description.sponsorship	National Institutes of Health T32HD055180	en_US
dc.identifier.uri	http://hdl.handle.net/1853/66286
dc.identifier.uri	https://doi.org/10.35090/gatech/66286
dc.publisher	Georgia Institute of Technology	en_US
dc.relation.replaces	http://hdl.handle.net/1853/65372
dc.subject	Prosthesis	en_US
dc.subject	Vibrotactile feedback	en_US
dc.subject	Cognitive motor control	en_US
dc.subject	Somatosensation	en_US
dc.title	Alpha-Band Activity in Parietofrontal Cortex Predicts Future Availability of Vibrotactile Feedback in Prosthesis Use	en_US
dc.type	Dataset	en_US
dspace.entity.type	Publication
local.contributor.author	Wheaton, Lewis A.
local.contributor.corporatename	College of Sciences
local.contributor.corporatename	School of Biological Sciences
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relation.isOrgUnitOfPublication	85042be6-2d68-4e07-b384-e1f908fae48a
relation.isOrgUnitOfPublication	c8b3bd08-9989-40d3-afe3-e0ad8d5c72b5