The photically evoked afterdischarge: a model for the study of drugs useful in the treatment of petit mal epilepsy.
Lightly restrained albino rats were administered dipropylacetic acid, trimethadione, diphenylhydantoin, saline, and a pentylenetetrazol challenge. The results were attributed to the locus of action of the anticonvulsants and strongly support the usefulness of the photically evoked after discharge as a model for the evaluation of thalamically active drugs, with particular reference to those useful in the control of petit mal epilepsy.