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Auditory-evoked cortical activity: contribution of brain noise, phase locking, and spectral power Harris, Kelly C....[et.al.]

Material type: materialTypeLabelBookOnline resources: Click here to access online In: Journal of Basic Clinical Physioliology Pharmacology May 2014Abstract: Background: The N1-P2 is an obligatory cortical response that can reflect the representation of spectral and temporal characteristics of an auditory stimulus. Traditionally, mean amplitudes and latencies of the prominent peaks in the averaged response are compared across experimental conditions. Analyses of the peaks in the averaged response only reflect a subset of the data contained within the electroencephalogram (EEG) signal. We used singletrial analyses techniques to identify the contribution of brain noise, neural synchrony, and spectral power to the generation of P2 amplitude and how these variables may change across age group. This information is important for appropriate interpretation of event-related potentials (ERPs) results and in understanding of age-related neural pathologies.
List(s) this item appears in: Audiiolology Assessment | Auditory evoked potentials
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Background: The N1-P2 is an obligatory cortical response<br /> that can reflect the representation of spectral and temporal<br /> characteristics of an auditory stimulus. Traditionally,<br /> mean amplitudes and latencies of the prominent peaks<br /> in the averaged response are compared across experimental<br /> conditions. Analyses of the peaks in the averaged<br /> response only reflect a subset of the data contained within<br /> the electroencephalogram (EEG) signal. We used singletrial<br /> analyses techniques to identify the contribution of<br /> brain noise, neural synchrony, and spectral power to the<br /> generation of P2 amplitude and how these variables may<br /> change across age group. This information is important<br /> for appropriate interpretation of event-related potentials<br /> (ERPs) results and in understanding of age-related neural<br /> pathologies.

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