Localization of a constant-touch and moving-touch stimulus in the hand

Nakada, Mayumi

doi:10.1016/s0894-1130(12)80177-3

Cited by 20 publications

(4 citation statements)

References 7 publications

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“…Weinstein (1968) obtained similar values for the palm (5-6 mm) and 1-1.5 mm in the fingertip. Nakada (1993) reported a mean error of localization on the fingertip of 1.8 mm. Weinstein (1968) also demonstrated that there is a strong correlation between 2PD values and localization in normal subjects (Spearman rank r=0.92), suggesting that these measures overlap and therefore may measure similar constructs.…”

Section: Discussionmentioning

confidence: 99%

A Study of the Relative Responsiveness of Five Sensibility Tests for Assessment of Recovery after Median Nerve Injury and Repair

JEROSCH-HEROLD

2003

Journal of Hand Surgery

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A longitudinal dynamic cohort study was conducted on patients with median nerve injuries to evaluate the relative responsiveness of five sensibility tests: touch threshold using the WEST (monofilaments), static two-point discrimination, locognosia, a pick-up test and an object recognition test. Repeated assessments were performed starting at 6 months after surgery. In order to compare the relative responsiveness of each test, effect size and the standard response mean were calculated for sensibility changes occurring between 6 and 18 months after repair. Large effect sizes (>0.8) and standard response means (>0.8) were obtained for the WEST, locognosia, pick-up and object recognition tests. Two-point discrimination was hardly measurable at any time point and exhibited strong flooring effects. Further analysis of all time points was undertaken to assess the strength of the monotonic relationship between test scores and time elapsed since surgery. Comparison of monotonicity between the five tests indicated that the WEST performed best, whereas two-point discrimination performed worst. These results suggest that the monofilament test (WEST), locognosia test, Moberg pick-up test and tactile gnosis test capture sensibility changes over time well and should be considered for inclusion in the outcome assessment of patients with median nerve injury.

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Section: Discussionmentioning

confidence: 99%

A Study of the Relative Responsiveness of Five Sensibility Tests for Assessment of Recovery after Median Nerve Injury and Repair

JEROSCH-HEROLD

2003

Journal of Hand Surgery

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“…Quantitative tests of touch sensibility that may he employed clinically are touch-pressure monofilaments (21 ), mechanical touch-pressure aesthesiometers (22)(23)(24), two-point discrimination tests (25,26), and point localization tests (23,27). Although these tests are ~~1Ia111ClCMtive, they are administered statically to a passive hand.…”

Section: Discriminationmentioning

confidence: 99%

Impaired Touch Discrimination After Stroke: A Quantiative Test

Carey

Oke²,

Matyas

1997

Neurorehabilitation and Neural Repair

129

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“…4 For example, in the hand the error of localisation decreases in a proximodistal direction, being smallest at the fingertip (1 mm to 1.5 mm) compared with the palm (5 mm to 6 mm). 5,6 Upper limb Inaccurate localisation of touch or 'referred' touch after nerve transection has been widely described and results in diminished tactile gnosis, which is the ability to identify shape, form and texture without vision. Misdirection of regenerated nerve fibres is thought to account for this.…”

mentioning

confidence: 99%

The reliability and validity of the locognosia test after injuries to peripheral nerves in the hand

Rosén

Shepstone

2006

The Journal of Bone and Joint Surgery. British volume

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Locognosia, the ability to localise touch, is one aspect of tactile spatial discrimination which relies on the integrity of peripheral end-organs as well as the somatosensory representation of the surface of the body in the brain. The test presented here is a standardised assessment which uses a protocol for testing locognosia in the zones of the hand supplied by the median and/or ulnar nerves. The test-retest reliability and discriminant validity were investigated in 39 patients with injuries to the median or ulnar nerve. Intraclass correlation coefficients were used to calculate the test-retest reliability. Discriminant validity was assessed by comparing the injured with the unaffected hand. Excellent test-retest reliability was demonstrated for the injuries to the median (intraclass correlation coefficient 0.924, 95% confidence interval 0.848 to 1.00) and the ulnar nerves (intraclass correlation coefficient 0.859, 95% confidence interval 0.693 to 1.00). The magnitude of the difference in scores between affected and unaffected hands showed good discriminant validity. For injuries to the median nerve the mean difference was 11.1 points (1 to 33; SD 7.4), which was statistically significant (p < 0.0001, paired t-test) and for those of the ulnar nerve it was 4.75 points (1 to 13.5; SD 3.16), which was also statistically significant (paired t-test, p < 0.0001). The locognosia test has excellent test-retest reliability, is a valid test of tactile spatial discrimination and should be included in the evaluation of outcome after injury to peripheral nerves.

show abstract

Localization of a constant-touch and moving-touch stimulus in the hand

Cited by 20 publications

References 7 publications

A Study of the Relative Responsiveness of Five Sensibility Tests for Assessment of Recovery after Median Nerve Injury and Repair

A Study of the Relative Responsiveness of Five Sensibility Tests for Assessment of Recovery after Median Nerve Injury and Repair

Impaired Touch Discrimination After Stroke: A Quantiative Test

The reliability and validity of the locognosia test after injuries to peripheral nerves in the hand

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