[Effect of disruption of the entopeduncular nucleus on rat behavior in simultaneous discrimination and open field tests]]. / Vliianie razrusheniia éntopedunkuliarnogo iadra na povedenie krys v usloviiakh odnovremennogo razlicheniia i otkrytogo polia.

The influence of unilateral destruction of n. entopeduncularis on learning and retention of simultaneous discrimination in a T-maze and adaptation in the open filed was studied in 29 adult rats. Destruction of n. entopeduncularis in rats resulted in appreciable deviations from the normal behavior during realization of earlier acquired simultaneous discrimination and slowing down of the acquisition of a new habit. Differences in behavioral activity of the lesioned animals in the maze and open field were revealed.

[Extinction of the defensive conditioned reflex in cats after lesioning the endopeduncularis nucleus]. / Ugashenie oboronitel'nogo uslovnogo refleksa u koshek posle razrusheniia éntopedunkuliarnogo iadra.

Influence of bilateral destruction of nucleus entopeduncularis on the extinction of conditioned avoidance was studied in 10 adult cats. It was shown that bilateral destruction of the nucleus entopeduncularis led to a disturbance of storage of the previous conditioning and facilitated repeated extinction.