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Effect of stimulus phase reversal on the 20-35 Hz frequency component of the AEP

Azam, Sami, Brown, Travis, Jonkman, Mirjam E. and De Boer, Friso G. (2011). Effect of stimulus phase reversal on the 20-35 Hz frequency component of the AEP. In: 4th International Conference on Biomedical Engineering and Informatics, Shanghai, China, 15-17 October 2011.

Document type: Conference Paper

IRMA ID CDU0002xPUB47
Author Azam, Sami
Brown, Travis
Jonkman, Mirjam E.
De Boer, Friso G.
Title Effect of stimulus phase reversal on the 20-35 Hz frequency component of the AEP
Conference Name 4th International Conference on Biomedical Engineering and Informatics
Conference Location Shanghai, China
Conference Dates 15-17 October 2011
Conference Publication Title Proceedings of the 4th International Conference on Biomedical Engineering and Informatics
Place of Publication United States of America
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Publication Year 2011
Volume Number 2
ISBN 978-1-4244-9351-7   (check CDU catalogue  open catalogue search in new window)
ISSN 1948-2914   (check CDU catalogue  open catalogue search in new window)
Start Page 725
End Page 729
Total Pages 4
HERDC Category E1 - Conference Publication (DIISR)
Abstract Auditory evoked potentials (AEP) have been recorded to investigate the effect of phase reversal of the stimulus presentation. Acquisition of the Middle Latency Response (MLR) for both homophasic and antiphasic cases was obtained by epoch averaging 500 trials of in-phase and 500 trials of out-phase EEG. An epoch was defined as the EEG data between 20 ms to 100 ms after the presentation of stimuli. The MLR was segmented by a trigger signal synchronized to the onset of the stimuli. The homophasic stimulus was a 1000 Hz Blackman windowed pure tone with a duration of 18 ms followed by 200 ms silence. The antiphasic stimulus was identical except for the phase of the stimulus. The stimuli were presented as blocks of 10 antiphasic tones followed by 10 homophasic tones for a total of 1000 tones. The comparison of the MLR responses upon presentation of homophasic and antiphasic stimuli showed there is electrophysiological evidence of binaural processing in the 20-35 Hz dominant frequency component.
Additional Notes 10.1109/BMEI.2011.6098401
Description for Link Link to conference paper
URL http://ieeexplore.ieee.org/xpl/articleDetails.jsp?&arnumber=6098401
 
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