ISSN:
1432-1106
Keywords:
Somatosensory evoked potentials
;
Cerebral ischemia
;
Paired stimulation
;
Excitability
;
Inhibitory function
;
Rabbit
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract In cerebral ischemia of different degrees, the amplitudes of somatosensory evoked potentials (SEPs) are facilitated or depressed. Different mechanisms might be responsible for the explanation of the contradictory phenomena. SEPs obtained using the paired stimulation method were employed in trying to find out the role of the functional changes of the inhibitory system in the brain during ischemia. Eight rabbits were used for recording the amplitude recovery curve of paired SEPs in the normal state, and the other ten were used for recording the recovery curve in different cerebral ischemic degrees. Cerebral ischemia was induced by the iron particle injection method. The attenuation of the depressed recovery function of the paired SEP amplitudes was detected during cerebral ischemia when SEP amplitudes were either facilitated or depressed. The results indicate that the function of the inhibitory system in the brain is selectively vulnerable during cerebral ischemia.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00241118
Permalink
