Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


BGSU_Dissertations_0333_Cox.pdf (1.58 MB)

ETD Abstract Container

Abstract Header

The Effects of Human Middle Ear Muscle Contraction on Speech Intelligibility

Cox, L. Clarke
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297715172827

Abstract Details

1975, Doctor of Philosophy (Ph.D.), Bowling Green State University, Communication Disorders.
The functions of the acoustic reflex have been the object of much research and literature. There are several theories which endeavor to identify a specific function of the reflex. One of these functions is the change in speech intelligibility created by contraction of the reflex. Specifically, studies have shown that speech intelligibility improves upon elicitation of the acoustic reflex. The present study was designed to further assess the relationship between the acoustic reflex and speech intelligibility. Monosyllabic words mixed with noise were presented to 35 subjects at -6, -3, 0 and +3 dB s/N ratios. Word lists were also presented with a 2000 Hz tone in the contralateral ear at a level 15 dB above the acoustic reflex threshold. This was performed to evaluate the intelligibility of the monosyllabic words with the acoustic reflex contracted or relaxed. The results indicated that at S/N ratios of -3 and 0 dB a significant decrement in speech intelligibility occurred. A slight but not significant decrement was seen at -6 and +3 dB S/N. The results of the present study show that contraction of the acoustic reflex causes a decrease in speech intelligibility. These results are discussed along with possible reasons for the lack of agreement with previous research.
Herbert J. Greenberg (Advisor)
Speech Therapy

Recommended Citations

Citations

  • Cox, L. C. (1975). The Effects of Human Middle Ear Muscle Contraction on Speech Intelligibility [Doctoral dissertation, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297715172827

    APA Style (7th edition)

  • Cox, L.. The Effects of Human Middle Ear Muscle Contraction on Speech Intelligibility. 1975. Bowling Green State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297715172827.

    MLA Style (8th edition)

  • Cox, L.. "The Effects of Human Middle Ear Muscle Contraction on Speech Intelligibility." Doctoral dissertation, Bowling Green State University, 1975. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566297715172827

    Chicago Manual of Style (17th edition)

bgsu1566297715172827
109
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.