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V Oswald

Publications and source records attributed to V Oswald.

4 recordsLinked to original sources

[ERG changes caused by stimulation of the reticular formation of the mesencephalon].

During stimulation of the Formatio reticularis mesencephali by different intensities in awake rabbits three types of the ERG were observed. During and 20 min after subthreshold stimulation (no alteration in the hippocampal EEG) the b-wave of the ERG was enhanced. However, the b-wave amplitude was diminished during stimulation and enhanced 20 min after stimulus application when the stimulus intensity evoked a hippocampal theta-rhythm of 5-7 waves/s. During and 20 min after RFm stimulation with the highest stimulus intensity which evoked a hippocampal theta-rhythm of 7-8 waves/s the b-wave was diminished.

Animals↗

[Changes of electroretinograms following hippocampus stimulation].

In chronical experiments the ERG of 5 rabbits were recorded before and after stimulation of the hippocampus. Stimulation of the hippocampus causing short generalized afterdischarge produced changes of the b-wave amplitude. Immediately after the stimulation the b-wave amplitude was larger than the amplitude in the control series. If the intensity of hippocampal stimulation was lower (no generalized afterdischarges) changes of b-wave amplitude were also produced, though being less pronounced. The results suggest that retinal processes are influenced by hippocampus.

Animals↗