FieldTrip made easy: An analysis protocol for group analysis of the auditory steady state brain response in time, frequency, and space
SourceFrontiers in Neuroscience, 12, (2018), article 711
Article / Letter to editor
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PI Group Neuronal Oscillations
PI Group MR Techniques in Brain Function
PI Group Neurobiology of Language
Frontiers in Neuroscience
Subject110 000 Neurocognition of Language; 150 000 MR Techniques in Brain Function
The auditory steady state evoked response (ASSR) is a robust and frequently utilized phenomenon in psychophysiological research. It reflects the auditory cortical response to a frequency modulated auditory stimulus. The present report provides a concrete example of a group analysis of the EEG data from 29 healthy human participants, recorded during an ASSR paradigm, using the FieldTrip toolbox. First, we demonstrate sensor-level analysis in the time domain, allowing for a description of the event-related potentials (ERPs), as well as their statistical evaluation. Second, frequency analysis is applied to describe the spectral characteristics of the ASSR, followed by group level statistical analysis in the frequency domain. Third, we show how time- and frequency-domain analysis approaches can be combined in order to describe the temporal and spectral development of the ASSR. Finally, we demonstrate source reconstruction techniques to characterize the primary neural generators of the ASSR. Throughout, we pay special attention to explaining the design of the analysis pipeline for single subjects and for the group level analysis. The pipeline presented here can be adjusted to accommodate other experimental paradigms and may serve as a template for similar analyses.
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