Into the deep – capturing the sources of early auditory activity

Publikation: KonferenzbeitragPoster

Abstract

Early auditory evoked potentials occur within the first ten milliseconds after acoustic stimulation. The recording of these potentials usually consists of five vertex waves with different peaks and droughts, each being associated with an anatomical structure in the auditory pathway.
These waves are typically analyzed to provide diagnostic value in patients with hearing disorders. One of the most commonly used methods of measuring these electrical signals originating in the cochlea is Electrocochleography (EcochG).
By means of extra-tympanic electrodes, we can measure these signals traveling through the auditory pathway across the brainstem into the auditory cortex.
Here we employed EcochG as a reference to extract this early auditory activity from the magnetoencephalographic (MEG) signal.
The signal as measured by the EcochG is then used to build a spatial filter for the MEG data, to access the subcortical structures associated with early auditory processing, such as the auditory nerve (wave 1) or the lateral leminiscus (wave 5).
This information will then be used in further analysis to see how early attentional modulation happens in the auditory pathway.
OriginalspracheEnglisch
PublikationsstatusVeröffentlicht - 12 Jul 2018
Veranstaltung2nd Salzburg Mind-Brain Annual Meeting - UniPark, Salzburg, Österreich
Dauer: 12 Jul 201813 Jul 2018

Konferenz

Konferenz2nd Salzburg Mind-Brain Annual Meeting
KurztitelSAMBA 2018
LandÖsterreich
OrtSalzburg
Zeitraum12/07/1813/07/18

Systematik der Wissenschaftszweige 2012

  • 501 Psychologie

Zitieren

Schmidt, F., Geyer, F., Demarchi, G., & Weisz, N. (2018). Into the deep – capturing the sources of early auditory activity. Postersitzung präsentiert bei 2nd Salzburg Mind-Brain Annual Meeting, Salzburg, Österreich.