scholarly journals Somatotopy of Perceptual Threshold to Cutaneous Electrical Stimulation in Man

2001 ◽  
Vol 86 (1) ◽  
pp. 127-130 ◽  
Author(s):  
Nick J. Davey ◽  
Alex V. Nowicky ◽  
Rashid Zaman
Keyword(s):  
Electrical Stimulation ◽  
Perceptual Threshold

An initial exploration of the perceptual threshold test using electrical stimulation to measure arm sensation following stroke

2011 ◽  
Vol 25 (11) ◽  
pp. 1042-1049 ◽  
Author(s):  
Lois D Hedman ◽  
Jane E Sullivan
Keyword(s):  
Electrical Stimulation ◽  
Intraclass Correlation ◽  
Community Dwelling ◽  
Sensory Function ◽  
Sensory Loss ◽  
Stroke Survivors ◽  
Threshold Values ◽  
Threshold Test ◽  
Significant Difference ◽  
Perceptual Threshold

Objective: To explore the viability of the perceptual threshold test using electrical stimulation to measure light touch sensation in the hands of stroke survivors. Design: Descriptive study. Setting: University research laboratory. Subjects: Twenty-nine adult community-dwelling chronic stroke survivors. Main measure(s): Perceptual threshold test using electrical stimulation, stroke rehabilitation assessment of movement, Nottingham sensory assessment for stereognosis, action research arm test, Fugl-Meyer assessment of sensation and motor activity log 14. Results: Perceptual threshold test using electrical stimulation mean threshold values were 1.23 (0.6) milliamperes (range 0.5–3.5) for the uninvolved side and 1.68 (0.91) milliamperes (range 0.5–4.5) for the involved side. The perceptual threshold test using electrical stimulation demonstrated excellent intra-rater reliability (intraclass correlation coefficient = 0.896 – uninvolved; 0.829 – involved). There was a statistically significant difference between the perceptual threshold test using electrical stimulation mean threshold values for the uninvolved and involved arms ( P = 0.003), but this significance did not hold for subjects who had normal sensation as measured by the Fugl-Meyer assessment of sensation ( P = 0.083). Low to nonexistent correlations were found between the perceptual threshold test using electrical stimulation and other measures of sensation, arm movement, activity and participation. Conclusions: The perceptual threshold test using electrical stimulation is a reliable and clinically feasible test with the potential to identify sensory capacity in stroke survivors with substantial sensory loss. Electrical sensory thresholds do not reflect overall sensory function or motor capabilities in stroke survivors.

scholarly journals Perceptual threshold to cutaneous electrical stimulation in patients with spinal cord injury

Spinal Cord ◽  
2006 ◽  
Vol 44 (9) ◽  
pp. 560-566 ◽  
Author(s):  
G Savic ◽  
E M K Bergström ◽  
H L Frankel ◽  
M A Jamous ◽  
P H Ellaway ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Electrical Stimulation ◽  
Cord Injury ◽  
Perceptual Threshold

The “KIMWIPE” Effect in Ultra-Thin Cryosections

1985 ◽  
Vol 43 ◽  
pp. 458-459
Author(s):  
I. Taylor ◽  
P. Ingram ◽  
J.R. Sommer
Keyword(s):  
Skeletal Muscle ◽  
Electrical Stimulation ◽  
Muscle Fibers ◽  
Ice Crystals ◽  
Crystal Formation ◽  
Ice Crystal ◽  
Thin Sections ◽  
Skeletal Muscle Fibers ◽  
Freeze Dried ◽  
Ice Crystal Formation

In studying quick-frozen single intact skeletal muscle fibers for structural and microchemical alterations that occur milliseconds, and fractions thereof, after electrical stimulation, we have developed a method to compare, directly, ice crystal formation in freeze-substituted thin sections adjacent to all, and beneath the last, freeze-dried cryosections. We have observed images in the cryosections that to our knowledge have not been published heretofore (Figs.1-4). The main features are that isolated, sometimes large regions of the sections appear hazy and have much less contrast than adjacent regions. Sometimes within the hazy regions there are smaller areas that appear crinkled and have much more contrast. We have also observed that while the hazy areas remain still, the regions of higher contrast visibly contract in the beam, often causing tears in the sections that are clearly not caused by ice crystals (Fig.3, arrows).

1372: The Effect of Tolterodine on Sensations Evoked by Electrical Stimulation and Bladder Filling Sensations

2006 ◽  
Vol 175 (4S) ◽  
pp. 442-442
Author(s):  
Sönke Boy ◽  
Brigitte Schurch ◽  
Gudrun Mehring ◽  
Peter A. Knapp ◽  
Gilles Karsenty ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Bladder Filling
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