Biomedical subjects

K T Moller

Publications and source records attributed to K T Moller.

13 recordsLinked to original sources

PubMed1996

Comparison of the hearing histories of children with and without cleft palate.

Aggressive otologic management has been recommended for children with cleft palate because of the almost universal occurrence of otitis media with effusion (OME) in these children and the association of OME with hearing loss and possible language, cognitive, and academic delays. In this study, 28 children with cleft palate and 29 noncleft children were seen at 3-month intervals from 9 to 30 months to compare otologic treatment and management. Hearing and middle ear function were tested at each session; information on ventilation tube placement was obtained from medical records. Ventilation tubes were placed earlier and more often in children with cleft palate, but children with cleft palates failed the hearing screening more often. The correlation between age at first tube placement and frequency of hearing screening failures was significant for the children with cleft palate, indicating that the later tubes were first placed, the poorer the child's hearing.

Acoustic Impedance Tests↗

PubMed1991

An approach to evaluation of velopharyngeal adequacy for speech.

The diagnosis and evaluation of velopharyngeal concerns is complex. It involves a variety of assessment techniques--both indirect, such as speech, and direct, using instrumentation to delineate how the velopharyngeal structures function. However, the most important tools we have for making decisions regarding velopharyngeal function and need for management are the speech characteristics. From thorough analysis of speech, there is much that can be learned about the status of velopharyngeal function and potential for change. The ultimate question that the speech diagnostician must attempt to answer concerns adequacy of velopharyngeal structures and function for producing acceptable speech.

Articulation Disorders↗

PubMed1985

The Dubowitz syndrome: a retrospective.

The purpose of the article is to update information concerning Dubowitz syndrome. A review of the literature since the disorder was originally described in 1965 is presented. In addition, case reports are presented for two siblings described in 1971 describing speech and dental development and current clinical findings. Analysis of approximately 30 cases reveals prevalence of growth failure and delayed bone age, mild microcephaly, broad forehead with sparse frontal hair, telecanthus, blepharophimosis, abnormal pinnae, broad nose, and micrognathia. Overt cleft palate or submucous cleft palate is not a prevalent finding (16%). High-pitched and hoarse voice quality appears to be a constant feature. There is the suggestion of an association with leukemia, lymphoma, and neuroblastoma. Inheritance appears clearly autosomal recessive.

Abnormalities, Multiple↗

PubMed1984

The effects of listening conditions on speech rating obtained in a clinical setting.

The effects of listening conditions on speech ratings from trained listeners were assessed in a clinical setting. The listening conditions were: (1) while face-to-face with the patient; (2) while observing the patient through a mirror and listening via a sound system; and (3) while listening to a tape recording of the patient. Analysis of 100 patients rated under each listening condition revealed no significant condition effects for resonance and articulation judgments. Voice ratings in the face-to-face condition were different from those made in the other conditions.

Adolescent↗

PubMed1984

Speech ratings by speech clinicians, parents and children.

Ratings of speech samples of children with cleft palate were obtained from speech clinicians in a Cleft Palate Clinic, speech clinicians in the public schools, parents of children with clefts, parents of children without clefts, children with clefts and children without clefts. Analyses of the obtained ratings suggest that nasality and articulation ratings obtained from adult groups do not differ appreciably. Correlations between ratings of nasality and articulation are interpreted as suggesting that speech clinicians are more likely to differentiate between these two variables than other listener groups.

Adolescent↗

PubMed1979

The effects of feedback filtering on nasalization in normal and hypernasal speakers.

Two groups of subjects, one with normal speech and one with hypernasal speech, spoke while hearing their voices unfiltered, low-pass filtered with cut-off frequencies of 1000, 500, and 300 Hz and high-pass filtered with cut-off frequencies of 500, 1000, and 2000 Hz. Measurements of nasalization were made with a miniature accelerometer attached to the side of the subject's nose. Both groups of subjects decreased nasalization when hearing their voices low-pass filtered with a cut-off frequency of 300 Hz. This decrease was statistically significant. The results were interpreted as supporting the hypothesis that nasalization is under feedback control.

Auditory Perception↗

PubMed1978