Facilitation of early and masking of late cortical responses in dementia.
Acta Neurol Belg
; 97(1): 22-7, 1997 Mar.
Article
en En
| MEDLINE
| ID: mdl-9107341
ABSTRACT
Topographic differences in longlatency SSEP and flash VEP data are compared in 3 different psychiatric patient groups. Differences between schizophrenia and affective disorder are restricted to somatosensory P100 amplitude gradients along the antero-posterior axis. In contrast EP-differences between psychiatric patients and dementia are prominent, encompassing both late and early (< 100 ms) responses. Our flash P 2 and somatosensory P 3 data are in accordance with previous findings. Multi-modal positive responses with a latency of 40-80 ms are significantly increased in dementia. This facilitation suggests cortical dysfunction and/or subcortical gating impairment.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Corteza Cerebral
/
Potenciales Evocados Somatosensoriales
/
Trastornos Mentales
Tipo de estudio:
Diagnostic_studies
Límite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Acta Neurol Belg
Año:
1997
Tipo del documento:
Article
País de afiliación:
Bélgica