Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-25T11:34:07.192Z Has data issue: false hasContentIssue false

A Psychophysical Method for Assessing Visual and Acoustic Hyperesthesia in Patients with Mild Head Injury

Published online by Cambridge University Press:  02 January 2018

N. Bohnen*
Affiliation:
Department of Neuropsychology & Psychobiology, University of Limburg, PO Box 616, 6200 MD Maastricht, The Netherlands
A. Twijnstra
Affiliation:
Department of Neurology, University Hospital of Maastricht
J. Kroeze
Affiliation:
Laboratory of Psychology, University of Utrecht, The Netherlands
J. Jolles
Affiliation:
University of Limburg, Maastricht
*
Correspondence

Abstract

Although it is well known that patients with mild head injury (MHI) are less able to endure intense light and sound stimuli than normal people, there are few psychophysical studies that have objectively measured this type of hyperaesthesia. In the present study, using a computerised rating scale technique, both the maximal and submaximal levels of reduced tolerance to light and sound were assessed for a wide range of stimuli. Three to six days after the trauma, 40 MHI patients were significantly less tolerant to stimuli of intensities over 71 dB and 500 lux levels than controls. These intensities are common, and MHI patients may suffer as a consequence.

Type
Brief Reports
Copyright
Copyright © 1991 The Royal College of Psychiatrists 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Alexander, M. P. (1982) Traumatic brain injury. In Psychiatric Aspects of Neurologic Disease, vol. II (eds Benson, D. F. & Blumer, D.), pp. 219250. New York: Grune & Stratton.Google Scholar
Binder, L. M. (1986) Persisting symptoms after mild head injury: a review of the postconcussive syndrome. Journal of Clinical and Experimental Neuropsychology, 8, 323346.Google Scholar
Boff, K. R., Kaufman, L. & Thomas, J. P. (1986) Handbook of Perception and Human Performance. Volume I: Sensory Processes and Perception. New York: John Wiley.Google Scholar
Conover, W. J. & Iman, R. L. (1981) Rank transformations as a bridge between parametric and nonparametric statistics. American Statistician, 35, 124129.Google Scholar
Fuster, J. M. (1989) The Prefrontal Cortex (2nd edn). New York: Raven Press.Google Scholar
Jonsson, C. O., Lidvall, H. & Malhammer, G. (1967) An exploratory psychological study of the post-traumatic cerebral syndrome. Acta Neurologica Scandinavica, 43, 158166.Google Scholar
Lishman, W. A. (1988) Physiogenesis and psychogenesis in the ‘post-concussional syndrome’. British Journal of Psychiatry, 153, 460469.CrossRefGoogle ScholarPubMed
SAS (1985) Statistics (Version 5 edn). Cary: SAS.Google Scholar
Stevens, J. C. & Stevens, S. S. (1963) Brightness function: effects of adaptation. Journal of the Optical Society of America, 55, 375385.CrossRefGoogle Scholar
Verhage, R. (1964) Intelligentie en leeftijd. PhD Dissertation. Assen, The Netherlands.Google Scholar
Waddell, P. A. & Gronwall, D. M. A. (1984) Sensitivity to light and sound following minor head injury. Acta Neurologica Scandinavica, 69, 270276.CrossRefGoogle ScholarPubMed
Walsh, K. W. (1987) Neuropsychology: a Clinical Approach. New York: Livingston.Google Scholar
Submit a response

eLetters

No eLetters have been published for this article.