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Prediction of Hearing Thresholds by Means of the Acoustic Reflex with Autistic and Normal Subjects

Description: This study concerns audiometric evaluation and prediction of hearing loss in the autistic child based on information derived from acoustic reflex thresholds. Two groups (autistic males and normal children) of five subjects each were utilized. Results indicated that the acoustic reflex method consistently predicted significantly higher hearing thresholds for autistic subjects than operant pure-tone audiometric procedures. Furthermore, the acoustic reflex thresholds were significantly less sensitive in the autistic group than in the normal group, suggesting that the acoustic reflex response is somehow altered in autistic individuals. These findings are consistent with earlier work which hypothesized that autistics, manifest an organic brain lesion which interferes with the propagation of auditory information.
Date: August 1979
Creator: Hutchison, Edward N.
Partner: UNT Libraries

The SSI and NU 6 in Clinical Hearing Aid Evaluation

Description: This paper reports on the comparison of the performance of fourteen normal hearing listeners and fourteen individuals with sensorineural hearing loss on the Synthetic Sentence Identification (SSI) and the Northwestern Auditory Test No. 6 (NU 6) in order to determine whether there are differences in performance of the two groups of listeners on the SSI and NU 6 and whether either test better reflects aided improvement and residual deficit. Both measures demonstrated significant aided improvement. The results of this study do not suggest a single best discrimination test which can reflect a real-life listening situation. The primary consideration in the hearing aid evaluation is flexibility in determining the appropriate level for the primary signal and the listening conditions.
Date: August 1977
Creator: Roddy, Norma
Partner: UNT Libraries

Silent Voices: the Experiences of Deaf Students in Community College

Description: Most students with hearing loss attend community college, yet very little research on this population of students exists in higher education. This dissertation is one of the first to explore the experiences of mainstreamed d/Deaf students in community college. This research was conducted in order to gain a better understanding of how students who are d/Deaf interact navigate the mainstream postsecondary environment. Purposeful sampling was used to gather data from 19 individuals who attended postsecondary institutions not designed specifically for d/Deaf students. These participants were enrolled in an urban community college district in the southwestern U.S. and were receiving accommodations from their campus accessibility office. The sample included six Black females, one Black male, five Latinos, three Latinas, two White males, one White female, and two females who identified as multiracial. Data were collected through 30-60 minute semi-structured interviews in American Sign Language or spoken English, and a brief demographic survey. The interviews conducted in American Sign Language were then interpreted into English; one participant did not know ASL, and relied on oral communication. The theoretical framework of this study was Bronfenbrenner’s ecological theory. Individual development does not occur inside a vacuum; utilizing this theory allows for the analysis of how a student interacts with his or her environment, and how the environment affects the student. Findings from this study provide insight on participants’ reasons for enrolling in college, their perception of academic rigor as compared to high school, and familial support during their college experience. Participants reported financial difficulty, despite their utilization of the state’s tuition waiver program for students with hearing loss. The need for communication access, and especially the quality and quantity of sign language interpreters featured prominently in participant responses. Participants also expressed a desire for more interaction between students with hearing loss and the general ...
Date: August 2014
Creator: Johnson, Serena Gail
Partner: UNT Libraries