Post-stimulus beta oscillations in the barrel system of awake rat

• Autorzy: Jurewicz K. , Stompor A. , Wrobel A. , Kublik E.
• Języki publikacji: EN

Abstrakty

EN

Beta band (15–25 Hz) activity increases within thalamo-cortical pathways in non-sleeping animals and in attentive states. In order to investigate this activity, we recorded LFP and EPs elicited by whisker stimulations in the barrel cortex and somatosensory thalamus of non-anesthetized rats. In a fraction of trials (up to 40%), whisker stimulations evoked phase-locked beta (~20 Hz) oscillations in a form of 300–400 ms bursts of characteristic trapezoid shape clearly distinguished in cortical signals, but hardly discernible in the thalamic recordings. Our data confirm that strong, natural sensory stimuli evoke high amplitude beta oscillations in the rat barrel cortex. As simultaneously recorded beta activity in thalamus is weak, it can hardly be considered as an important generator of these oscillatory events. Research 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.337

Twórcy

autor

Jurewicz K.

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

autor

Stompor A.

• Faculty of Physics, Optic and Photonic Division, Warsaw University of Technology, 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