Abstract
Injection of γ-vinyl aminobutyric acid (GVG) into the anterior thalamus protected rats against pentylenetetrazol (PTZ) seizures but not against maximal electroshock (MES) seizures. Injection of GVG into the substantia nigra protected against MES seizures but not against PTZ seizures. Both types of seizures were prevented by injection into both of the above brain regions. These data indicate that separate neuronal circuits mediate PTZ and MES seizures.
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