Browsing by Subject "Speech disorders -- Diagnosis"
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Item A Staggered Spondaic Word Test as an indicator of minimal brain dysfunction in children(Texas Tech University, 1969-05) Morrill, Jeffrey ClairNot availableItem Correlation of language and central auditory processing abilities: implications of underlying cognitive processes(Texas Tech University, 1998-02) Schmitt, Mary ElizabethCurrent assessment and treatment procedures in speech-language pathology and audiology have assumed a causal relationship between language and central auditory processing abilities; however, previous research studies are contradictory in their findings. In addition, no studies have investigated possible underlying mechanisms responsible for any existing relationships. This study examined 20 children between the ages of 5.0 and 7.11 with a previous diagnosis of a language disorder, and through administration of two standardized test batteries, quantified their language and central auditory processing abilities. Pearson-product moment correlation coefficients revealed a strong relationship between overall language and central auditory processing scores (r = .81, p < .001). In addition, strong relationships existed between two of the CAP tests (SSW and SCAN) and 4 out of the 6 language subtests (p < .05), indicating possible similarities in underlying cognitive processes important for each task. A multiple regression analysis revealed high predictive ability of the SSW central auditory task for the same four language subtests (p < .05). Results provide strong implications for current assessment and treatment protocols.Item The rating of deviant articulation by three listener groups(Texas Tech University, 1969-08) Doyle, Dorothy GeeslinNot availableItem Voice Recovery Time Following Short-Term Intubation(Texas Tech University, 1997-06) Pearson, Michael GlenMany patients undergo endotracheal intubation, a procedure in which a tube is placed into the trachea via the oral cavity. This procedure is performed to assist patients' respiration while their muscles are paralyzed due to anaesthesia. The placement of the tube has been cited in the literature as one possible cause of postintubation changes in phonation. Even though there have been studies of laryngeal damage and estimations of how long it takes a patient's voice to return to normal, the time course of these changes has not been objectively investigated in terms of recovery. The purpose of this study was to determine objectively whether phonation returned to normal within previous researchers' estimated time frame of up to 72 hours. Baseline electroglottographic (EGG) and acoustic vocal measures were taken before ten subjects' surgeries, and posttest ECJG and acoustic measures were taken following surgery and at 24 hour intervals up to 72 hours. Identical protocols were followed with ten subjects who did not have surgeries to insure that differences were caused by intubation and not normal daily changes in their voices. To take ECJG fundamental frequency (fg) measurements, two electrodes were placed anterior to each subject's thyroid laminae. Simultaneous audio recording of all samples were made to obtain acoustic measurements of the second and third formants, jitter, shimmer, and noise-to-harmonic ratio (NHR). Samples of five prolonged vowels and a short reading passage were obtained in a pretest and four consecutive post-test conditions. The EGG and audio recordings were analyzed using a Kay Elemetrics Computerized Speech Lab (CSL) system. Average fundamental frequencies of all samples were computed using ECJG data. The second and third formants, jitter, shimmer, and NHR were determined using the CSL program for acoustic analysis of audio samples. Means comparisons of data revealed no main effect for group and no two way factorial effects statistically. However, descriptive results indicated some consistent patterns of changes between non-intubated and intubated groups. Even so, the results were not uniform across vowels, variables, and tests. Therefore, further research is warranted.