Abstract

Data from a number of kindling experiments involving 60 convulsion trials were evaluated by a truncated principal components factor analysis to determine the number of common factors present. These data were obtained on 123 rats in which periodic low-intensity unilateral stimulation was alternated from one amygdala to the other after six convulsions on each side. Two dependent variables (latency of convulsion, duration of convulsion) were analyzed over Trials 1–60, 1–24, 25–60, 1–12, 13–24, 25–36, 37–48, and 49–60 for each dependent variable. Two factors appeared for all latency analyses: primary site stimulation (first side stimulated), secondary site stimulation (second side stimulated). The factor resolution was not clear for the duration measure; two to four factors were suggested in the various analyses.

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