Separation of Auditory Evoked Responses to the Right- and Left-Ear Inputs

S. Kuriki, H. Kurumaya, K. Tanaka, Y. Uchikawa

Abstract

In the monitoring/examination of auditory neural functions in rehabilitation, it is desirable to observe the responses from the central auditory system separately to the right- and left-ear inputs during binaural stimulation of sounds. However, mixed responses in the right or left auditory cortices are difficult to discriminate. Here, we report a novel method to discriminate transient responses evoked by binaural sounds delivered simultaneously to the right and left ears. Simulations showed that transient phasic responses were much attenuated in amplitude after repeated averaging of the response-epochs using triggers that were asynchronous to the sound onsets, while original waveform of the response was reserved by synchronous averaging time-locked to the sounds. In the measurements of evoked magnetic fields, we obtained separated responses to a speech sound and a pure tone delivered to the right and left ears by using two sets of triggers that were time-locked to the right and left stimuli with random intervals but uncorrelated with each other.

References

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Paper Citation


in Harvard Style

Kuriki S., Kurumaya H., Tanaka K. and Uchikawa Y. (2013). Separation of Auditory Evoked Responses to the Right- and Left-Ear Inputs . In - NEUROTECHNIX, ISBN , pages 0-0


in Bibtex Style

@conference{neurotechnix13,
author={S. Kuriki and H. Kurumaya and K. Tanaka and Y. Uchikawa},
title={Separation of Auditory Evoked Responses to the Right- and Left-Ear Inputs},
booktitle={ - NEUROTECHNIX,},
year={2013},
pages={},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={},
}


in EndNote Style

TY - CONF
JO - - NEUROTECHNIX,
TI - Separation of Auditory Evoked Responses to the Right- and Left-Ear Inputs
SN -
AU - Kuriki S.
AU - Kurumaya H.
AU - Tanaka K.
AU - Uchikawa Y.
PY - 2013
SP - 0
EP - 0
DO -