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    Study on Event-related Potential in Patients With Minimal Head Injury

    Wang Xiaoming et al

    Department of Neurology, Affiliated Hospital

    of North Sichuan Medical College 637007

    ABSTRACT To assess the effect of event-related potential(ERP)on the cognition function in patients with minimal head injury. Method:Auditory ERP was studied separately in 22 patients with minimal head injury and 20 normal subjects matched with age, sex and education. Results:The P3 latency in patient group was significantly prolonged as compared with the control group(p<0.01). With the improvement of disease, the latency was decreased and the amplitude increased gradually. Conclusion:ERP might be taken as an objective index of measuring the change of the brain cognition function in patients with minimal head injury.

    Key Words minimal head injury event-related potential cognition function

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    1 Goodin DS.Clinical utility of latency cognitive event-related potentials(P3)£ºthe pros. Electrencephalogr Clin Neurophysiol, 1990;76:2

    2 Kugler CF, Vlajic P, Funk H, et al. The event-related P300 potential approach to cognitive functions of nondemented patients with cerebral and peripheral arterosclerosis. J Am Geriatr Soc, 1995;43(11):1228

    3 Judson JA, Cant BR, Shaw NA. Early Prediction of outcome from cerebral trauma by somatosensory evoked potentials. Crit Care Med, 1990;18:363

    4 ÍõÏþÃ÷£¬Áú´æ¹ú£¬ÁÖÕýÈØ£¬µÈ.ÄÔÕðµ´»¼ÕßÓÕ·¢µçλÑо¿.¼±Õïҽѧ£¬1999£»3(8)£º178¡«180

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    6 Ellwanger J, Rosenfeld JP, Sweet JJ, et al. Detecting simulated amnesia for autobiographical and recently leamed information using the P300 event-related potential. Int J Psychophysiol, 1996;23(1¡«2)£º9

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