[The characteristics of motor asymmetry in rats with genetic epilepsy (the WAG/Rij strain)].
Motor asymmetry was studied in two groups of WAG/Rij rats with genetic absence epilepsy. A rat had to get food from the horizontal tube with preferable forelimb. The asymmetry coefficient Cas was calculated for the first 10, 50, and 100 trials. In the first group ("pure" absence epilepsy, n = 34) the percent of "left-handers", "right-handers", and ambidextrous calculated for the first 10 trials, was 56, 26, and 18, respectively. In the second group (mixed form of epilepsy, n = 27) this ratio was 19, 40, and 41%, respectively. The percent of ambidextrous, calculated for 50 and 100 trials, substantially decreased in both groups, and the above mentioned ratio became 62, 32, and 6% in the first group and 30, 63, and 7% in the second one. A possible association of pathogenesis of different forms of epilepsy with forelimb preference is discussed.
Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow.
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Pletneva
D000161:Acoustic Stimulation / Q000379:methods; D000818:Animals; D016009:Chi-Square Distribution; D004292:Dominance, Cerebral / Q000502:physiology*; D004832:Epilepsy, Absence / Q000235:genetics / Q000503:physiopathology*; D005247:Feeding Behavior / Q000502:physiology; D005508:Food Deprivation / Q000502:physiology; D008297:Male; D009044:Motor Cortex / Q000503:physiopathology*; D051381:Rats; D011919:Rats, Inbred Strains / Q000235:genetics / Q000502:physiology*
Osobennosti motornoĭ asimmetrii u krys s geneticheskoĭ épilepsieĭ (liniia WAG/Rij).