Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


BGSU_Dissertations_0271_Singh.pdf (1.28 MB)

ETD Abstract Container

Abstract Header

Temporal Summation and the Acoustic Reflex in Normal and Sensorineural Hearing-Impaired Ears

Singh, Davinder
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297702067592

Abstract Details

1975, Doctor of Philosophy (Ph.D.), Bowling Green State University, Communication Disorders.
The psychoacoustic and acoustic reflex temporal summation functions in normal and sensorineural hearing-impaired subjects were investigated. Bursts of one-third octave noise with center frequencies of 500, 1000, 2000 and 4000 Hz and stimulus durations of 15, 20, 50, 100, 200, and 300 msec were used. The psychoacoustic temporal summation functions for the Meniere's were compressed and significantly different from the normals for durations less than 100 msec at all four frequency noise bands. For the 100 msec duration, the Meniere's and the normals were significantly different only for the 500 and 1000 Hz noise band. The presbycusic subjects also indicated the presence of temporal summation. Overall, the temporal summation functions of the presbycusic subjects fell between those of normals and Meniere's. However, significant differences between presbycusics and Meniere's existed only for short duration stimuli of the 500 and 1000 Hz noise bands. The range of the threshold difference of the acoustic reflex for the durations used in normal hearing subjects varied between 16-20 dB. This range was reduced to 12-16 dB for the presbycusics and was further reduced to 9-14 dB for the Meniere's subjects. There was a relationship between signal frequence and the magnitude of this acoustic reflex threshold-duration range for both the normal and sensorineural subjects. The reflex temporal summation functions for Meniere's were significantly different from normals at stimulus durations of less than 200 msec for all noise bands. However, no significant differences existed between the presbycusics and normals and between the presbycusics and Meniere's. Significant differences in reflex temporal summation functions were obtained between pristine (never exposed to loud sounds) and normal (casually exposed to loud sounds) subjects for the band of noise centered at 500 Hz.
Herbert J. Greenberg (Advisor)
Audiology

Recommended Citations

Citations

  • Singh, D. (1975). Temporal Summation and the Acoustic Reflex in Normal and Sensorineural Hearing-Impaired Ears [Doctoral dissertation, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297702067592

    APA Style (7th edition)

  • Singh, Davinder. Temporal Summation and the Acoustic Reflex in Normal and Sensorineural Hearing-Impaired Ears. 1975. Bowling Green State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297702067592.

    MLA Style (8th edition)

  • Singh, Davinder. "Temporal Summation and the Acoustic Reflex in Normal and Sensorineural Hearing-Impaired Ears." Doctoral dissertation, Bowling Green State University, 1975. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297702067592

    Chicago Manual of Style (17th edition)

bgsu1566297702067592
81
This document is provided by Bowling Green State University for research and educational purposes, and may be under copyright by the author or the author's heirs. Please contact the ETD Center administrator at Bowling Green State University etd@bgsu.edu with any questions or comments. In your email, be sure to include the URL and title of the specific items you are inquiring about.
This open access ETD is published by Bowling Green State University and OhioLINK.