[Tegmento-telencephalic interactions in turtles].
Electrophysiological characteristics of tegmental projections in the forebrain were studied in immobilized slightly chloralose anesthetized turtles Emys orbicularis. The main zone of tegmental representation was found in the striatum where the most short-latent evoked potentials were recorded and the largest number of single units responding to tegmental stimulation was concentrated in comparison both with the dorsal ventricular ridge and general cortex. It is shown that laterotegmental projections have main target zone in the lateral part of the striatum, while mediotegmental projections--in the medial striatum part. Coinciding or preceding tegmental stimulation produced a suppressing effect on both somatic evoked responses and single unit reactions. An attempt to compare tegmento-thalamo-telencephalic systems in reptiles and mammals.
D000818:Animals; D001931:Brain Mapping; D005071:Evoked Potentials; D009434:Neural Pathways / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D012677:Sensation / Q000502:physiology; D013681:Tegmentum Mesencephali / Q000502:physiology*; D013687:Telencephalon / Q000502:physiology*; D014426:Turtles / Q000502:physiology*
Tegmento-teléntsefal 'nye vzaimootnosheniia u cherepakh.