Temporal and spatial properties of slow waves in the electroencephalogram of spontaneously hypertensive rats.
Clin Exp Pharmacol Physiol Suppl
; 22(1): S288-9, 1995 Dec.
Article
en En
| MEDLINE
| ID: mdl-9072395
ABSTRACT
1. Electroencephalogram (EEG) of stroke-prone spontaneously hypertensive rats (SHRSP) and M(malignant)-SHRSP were analysed for excitability changes in the cerebral neuronal circuit using power spectral comparisons. 2. EEG in hypertensive SHRSP and M-SHRSP showed the emergence of slow wave bursts parallel to the development of hypertension. 3. These bursts were composed of spikes and sharp waves, and became dominant in the later stages of hypertension. 4. Bursts were interposed by a silent period indicating a strongly depressed state of neuronal activities. The ratio of the periods of the depressed to the burst increased with the progress of the hypertension. 5. A shift of the major component toward a lower frequency band also indicated decreased cerebral activity.
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Bases de datos:
MEDLINE
Asunto principal:
Electroencefalografía
/
Hipertensión Maligna
Límite:
Animals
Idioma:
En
Revista:
Clin Exp Pharmacol Physiol Suppl
Año:
1995
Tipo del documento:
Article
País de afiliación:
Japón