NDLI: Measurement of eye and arm movement deficits following mild closed head injury

Content Provider	IEEE Xplore Digital Library
Author	Heitger, M.H. Jones, R.D. Anderson, T.J.
Copyright Year	2003
Description	Author affiliation: Christchurch Movement Disorders & Brain Res. Group, New Zealand (Heitger, M.H.; Jones, R.D.; Anderson, T.J.)
Abstract	Diffuse axonal injury caused by mild closed head injury (CHI) is likely to damage the extensive neural networks concerned with oculomotor and visuomotor control. We hypothesized that infra-red oculography and computerized tests of visuomotor function would be able to measure the resulting motor deficits. We compared 37 patients with mainly mild closed head injury (CHI, 36 mild and 1 moderate) and 37 controls (matched for age, gender, years of education) at 1 week, 3 months and 6 months post injury on measures of saccades, oculomotor smooth pursuit, and upper-limb visuomotor function. At 1 week, the CRT group demonstrated prolonged saccade latencies, increased directional errors and decreased saccade accuracy in combination with increased arm movement reaction time, decreased arm movement speed, and decreased motor accuracy in the visuomotor tests. Fast oculomotor smooth pursuit was mildly impaired. At 3 months, several oculomotor and visuomotor deficits remained. At 6 months, no deficits were found on any of the motor tests. Our results show that multiple motor systems can be impaired up to several months following mild CHI. These findings indicate that quantitative tests of oculomotor and upper-limb visuomotor function can provide sensitive markers of neurophysiological dysfunction and supports the possible use of such tests to supplement patient assessment following nonsevere CHI.
Starting Page	47
Ending Page	50
File Size	455599
Page Count	4
File Format	PDF
ISBN	0780375793
DOI	10.1109/CNE.2003.1196752
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-03-20
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Head Hospitals Nervous system Computer science education Brain injuries Physics Biological neural networks Delay Testing Biomedical engineering
Content Type	Text
Resource Type	Article

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