Document Detail

A portable tactile sensory diagnostic device.
MedLine Citation:
PMID:  17537516     Owner:  NLM     Status:  MEDLINE    
Current methods for applying multi-site vibratory stimuli to the skin typically involve the use of two separate vibrotactile stimulators, which can lead to difficulty with positioning of stimuli and in ensuring that stimuli are delivered perfectly in phase at the same amplitude and frequency. Previously, we reported a two-point stimulator (TPS) that was developed in order to solve the problem of delivering two-point stimuli to the skin at variable distances between the sites of stimulation. Because of the success of the TPS, we designed and fabricated a new stimulator with four significant improvements over our original device. First, the device is portable, lightweight and can be used in a variety of non-laboratory settings. Second, the device consists of two independently controlled stimulators which allow delivery of stimuli simultaneously to two distinct skin sites with different amplitude, frequency and/or phase. Third, the device automatically detects the skin surface and thus allows for much better automated control of stimulus delivery. Fourth, the device is designed for rapid manufacture and, therefore, can be made readily available to other research (non-laboratory) settings. To demonstrate the device, a modified Bekesy tracking method was used to evaluate the simultaneous amplitude discrimination capacity of 20 subjects.
V Tannan; R G Dennis; Z Zhang; M Tommerdahl
Related Documents :
15614586 - Infective larvae of the human hookworms necator americanus and ancylostoma duodenale di...
22065076 - Novel photosensory two-component system (pixa-nixb-nixc) involved in the regulation of ...
20203986 - High aperture lens for laser compression experiments: a new type.
20166166 - Photodynamic photorejuvenation of the face with a combination of microneedling, red lig...
24240956 - Blue- and red-light action in photoorientation of chloroplasts in adiantum protonemata.
1762876 - Serial search for targets defined by divergence or deformation of optic flow.
Publication Detail:
Type:  Journal Article     Date:  2007-04-22
Journal Detail:
Title:  Journal of neuroscience methods     Volume:  164     ISSN:  0165-0270     ISO Abbreviation:  J. Neurosci. Methods     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-06-25     Completed Date:  2007-09-27     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  7905558     Medline TA:  J Neurosci Methods     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  131-8     Citation Subset:  IM    
Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Electrodiagnosis / instrumentation*,  methods
Mechanoreceptors / physiology
Mechanotransduction, Cellular / physiology
Neurologic Examination / instrumentation,  methods
Physical Stimulation / methods
Psychophysics / instrumentation*,  methods
Reaction Time / physiology
Reference Values
Signal Processing, Computer-Assisted / instrumentation
Skin / innervation,  physiopathology
Somatosensory Disorders / diagnosis*,  physiopathology
Touch / physiology*
Transducers, Pressure / trends
Grant Support
R01 NS043375-03/NS/NINDS NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Pulsed laser versus electrical energy for peripheral nerve stimulation.
Next Document:  Production, purification and functional validation of human secreted amyloid precursor proteins for ...