Year: 1981
Type: conference-abstract
Abstract: Thresholds of on-going interaural time difference (ITD) were obtained from normal-hearing and hearing-impaired subjects who had high-frequency, sensori-neural hearing loss. Utilizing several stimuli (a 500-Hz sinusoid, a narrow-band noise centered at 500 Hz, a 4000-HZ tone amplitude-modulated at 250 Hz, and a narrowband noise centered at 4000 Hz), four criteria for determining the level of presentation to each subject were employed: (1) Equal sound pressure level; (2) equal sensation level; (3) equal loudness; and (4) midline intracranial image. The ITD thresholds and slopes of the psychometric functions were elevated for hearing-impaired subjects for the two high-frequency stimuli in comparison to: (1) The subject's own low-frequency thresholds and (2) data obtained from normal-hearing subjects for stimuli presented with equal SPL interaurally. The ITD thresholds using stimuli level based on equal loudness and a centered image were slightly lower than those obtained using the equal SPL criterion.
DOI: 10.1121/1.386149
Authors: Walter J. Smoski, Constantine Trahiotis
Institution: University of Illinois Urbana-Champaign
Language: English
Subfield: Cognitive Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W2086003525