Somatosensory evoked potentials in rat’s zona incerta

• Autorzy: Borzymowska Z. , Swiejkowski D. , Wrobel A. , Kublik E.
• Języki publikacji: EN

Abstrakty

EN

Ventral sector of zona incerta (ZIv) was postulated to provide a significant GABA-ergic input to the higher-order thalamic nuclei. The aim of this study was to characterize, at the population level, the electrical activity evoked by a whisker stimulation in ZIv. In anesthetized rats microelectrodes were positioned into several locations encompassing ZI. EPs were recorded in response to deflection of mystacial vibrissae. The strongest response occurred in the posteriomedial part of ZIv with EPs starting at 3 ms post-stimulus with a large phasic negative wave followed by two low-amplitude slow positive and negative waves. The known connectivity of ZI suggest that short latency negative waves result from glutamatergic input from the spinal trigeminal nuclei, whereas longer-latency negative waves could originate from the cortical projections. Positive waves might reflect the activation of inhibitory input from anterior pretectal nucleus. Supported by the polish National Science Centre grant N N401 533040.

• Wydawca: -
• Czasopismo: Acta Neurobiologiae Experimentalis
• Rocznik: 2014
• Tom: 74
• Numer: 3
• Opis fizyczny: p.336

Twórcy

autor

Borzymowska Z.

• Department of Neurophysiology, Nencki Institute of Experimental Biology Polish Academy of Sciences, Warsaw, Poland

autor

Swiejkowski D.

• Department of Neurophysiology, Nencki Institute of Experimental Biology Polish Academy of Sciences, Warsaw, Poland

autor

Wrobel A.

• Department of Neurophysiology, Nencki Institute of Experimental Biology Polish Academy of Sciences, Warsaw, Poland

autor

Kublik E.

• Department of Neurophysiology, Nencki Institute of Experimental Biology Polish Academy of Sciences, Warsaw, Poland