Speech and Hearing Science Commons^™

Test-Retest Performance Of Males And Females On A Verbal Dichotic Listening Task, Linda Kay Johnson

Speech and Hearing Sciences ETDs

Previous research has established that when two speech signals are presented dichotically, normal listeners tend to report those stimuli presented to the right ear more accurately than those presented to the left. This has generally been interpreted as reflecting the primacy of contralateral auditory pathways and left hemisphere dominance for language function. Although many dimensions of the dichotic listening procedure have been subjected to experimental manipulation, little attention has been directed toward the investigation of performance differences between males and females or the reliability with which listeners perform. The present study was designed to examine these two areas more closely, …

The Effect Of Favorable Video Feedback On A Person's Self Concept., Antonio B. Rey

Speech and Hearing Sciences ETDs

Previous research concerned with the relationship between video feedback and self concept indicates that video feedback can affect a person’s perception of self. Based on self concept theories which suggest that positive or negative evaluations from others tend to become self-evaluations, the purpose of this study was to investigate the effect of video feedback, self-appraised as favorable, on o person's self concept.

A Comparison Of Two Systems Used In The Electro-Acoustic Evaluation Of Hearing Aids, Sallie Ann Frye

Dissertations and Theses

The purpose of this study is to compare the Fonix Type 5000 Hearing Aid Test Set to the B&K system by testing the same hearing aids with both systems in order to determine whether there are any important differences between the measurements obtained using the two systems. Frequency response has been chosen as the measure on which the comparisons will be made.

Masking Patterns Of High Frequency Pure Tones, Judith Eide Widen

Dissertations and Theses

Previous investigations of masking have established that the action of the masking tone spreads upward in frequency, creating significantly more masking (threshold shift) above the masker frequency than below. It was the purpose of this study to investigate the masking pattern produced by high frequency pure tones, heretofore uninvestigated.

Masking patterns were obtained for nine normal hearing young adults utilizing the method of adjustment. The masking produced by an 11000 Hz pure tone of 40 dB sensation level was measured at three frequencies above and three frequencies below the masker frequency. Analysis of the data revealed a downward spread of …

Intelligibility Of Speech Compared Through Two Limiter Compression Circuits, Lee M. Odell

Dissertations and Theses

Hearing aid manufacturers commonly engineer automatic gain control (AGC) circuits which are aimed at reducing'sound tolerance problems and improving speech intelligibility among wearers. The most common type of AGC engineered is one utilizing a fast attack time. The present study was designed to evaluate the effects of both fast and slow attack times on the intelligibility of speech. Twenty-four normal hearing subjects listened to sixty pre-recorded sentences through two types of hearing aid circuits. Thirty sentences were modified by a fast attack AGC circuit, and thirty sentences were modified by a slow attack AGC. The subjects marked one of four …

Validation Of The Oregon School Entrance Speech Screening Test, Patricia Ann Hamilton

Dissertations and Theses

This study was designed to validate a speech screening device entitled the Oregon School Entrance Speech Screening Test. The OSESST was developed to identify quickly those children entering first grade who are in need of speech and language intervention. The present study sought to determine what proportion of children with speech and language disorders was not detected by the screening test and what proportion of children without speech and language disorders failed the OSESSI. In addition, this study undertook to determine whether results of this investigation are consistent with those obtained on the OSESST in areas of articulation, syntax, language …

An Investigation Of The Influence Of Dialectal Interferences On The Nsst Scores Obtained By Portland Black Children, Margaret J. Callahan

Dissertations and Theses

The primary purpose of this study was to determine if dialectal interference as described by Walter Wolfram (Appendix B) was exhibited by black children in Portland, Oregon when given the NSST by Laura Lee. This author was concerned with syntactical interferences on the expressive portion of this test.

A secondary purpose of this investigation was to provide suggested norms for differentiating children with language deficits from children with language differences.

Seventy black children with normal speech and language were selected from two public schools, a Head Start Center and a day care center. These children were between the ages of …

The Frequency Of Retroflex /R/ Production In Elementary School Children, Vicki Barna Wood

Dissertations and Theses

In articulation treatment and diagnosis, it is essential to possess a thorough knowledge of what is “normal” as well as what is “defective” articulation. The /r/ phoneme is one of the most frequently occurring and most commonly defective sounds. There are two different tongue positions for the /r/ phoneme described in the literature (retroflex and central hump), with many assumptions about which tongue position is “normal” or “most common.” None of these assumptions, however, are based on empirical data.

The purpose of this study was to provide some normative data regarding which of the two tongue positions is most common …

Teaching Hearing-Impaired Children Language Through The Use Of Musical Rhythm, Naomi Anne Banducci

Dissertations and Theses

While several authors have indicated specific methods for teaching rhythm, there is no single, comprehensive source available which could serve as a teaching guide in this important area of aural rehabilitation. The current paper represents an initial attempt to fulfill this need. The purpose ot this paper is to provide a survey of the different methods and avenues for teaching the rhythm of language to hearing impaired children.