Limbic and/or generalized convulsive seizures elicited by specific sites in the thalamus
1995
Convulsive seizures were elicited by a single unilateral microiniection of the cholinergic muscarinic agonist, carbachol, into the thalamus. Moreover, using systematic single microinjections of carbachol, we identified specific regions within the thalamus which were the origin of behavioural and electrocortical correlates associated with limbic and/or generalized convulsive seizures. Neither serotonin, noradrenaline nor glutamate had any convulsive effect when injected into the epileptogenic thalamic areas. The specific epileptogenic sites identified within the thalamus may provide a new experimental model which should prove useful for exploring the thalamic and thalamo-cortical mechanisms underlying limbic and generalized convulsive seizure disorders
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