Abstract
To investigate the spatial abilities of patients with auditory neuropathy (auditory nerve disease, AN), we applied a sound localization task with a speaker array as well as a binaural sound lateralization task. In the sound localization task, subjects were asked to choose the direction of actual sound source of short (duration, 3 ms) or long (duration, 100 ms) noise bursts centered at 500 Hz played from 1 of 12 surrounding (220°) speakers. The AN patients identifi ed the direction of the longduration sound fairly well. However, they could localize few sources of the shortduration sound. The results were compared with non-AN patients and normal persons to discuss the auditory neural processing of cues for transient or prolonged source estimation, that is, interaural intensity and time differences (IID, ITD) and spectral difference by head-related transfer function (HRTF).
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Itoh, K., Kuroki, S., Sekimoto, S., Kaga, K. (2009). Sound Localization and Lateralization of Patients with Auditory Neuropathy. In: Kaga, K., Starr, A. (eds) Neuropathies of the Auditory and Vestibular Eighth Cranial Nerves. Springer, Tokyo. https://doi.org/10.1007/978-4-431-09433-3_4
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DOI: https://doi.org/10.1007/978-4-431-09433-3_4
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-09432-6
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