Ongoing maturation in the time-compressed speech test

Abstract

OBJECTIVES:To verify the neuromaturational influence in the ability of auditory closure, that is, to verify the performance of children and young adults in the ability of auditory closure, through the time compressed speech test (TCS).METHODS:Thirty children (8 to 10 years old) and 30 young adults (16 to 24 years old) with normal hearing without complaints (neurological, cognitive, auditory processing) who performed TFC (monosyllables and disyllables) with a compression ratio of 60% in both ears. Statistical analysis was performed using analysis of variance (ANOVA) and ANOVA with repeated measures with a significance level of 0.05. The minimum statistical power was 80%.RESULTS:In the comparison between ears, there was no significant difference between groups for the monosyllables. For disyllables, the second ear tested was better in children, and the right ear was better than the left ear for young adults. In the comparison between modalities (monosyllables and disyllables), children did not show significant differences. The performance of the young adults was better in the disyllables in both ears. Comparing the age groups, the young adults were better than the children for both modalities and ears.CONCLUSION:The study has demonstrated the influence and impact of age (maturational factor) on TCS test performance, showing the importance of establishing normality patterns for various age groups to provide a standardized tool for evaluation of auditory closure ability.

Time-compressed speech test in adults with and without central auditory processing disorders

“…These findings corroborate other studies that also administered the TCST 9,13,15 . A study with young adults 16 did not verify differences in the TCST performance with monosyllabic stimuli; however, the right ear had a better performance with the disyllable stimuli. The authors report that such a result was not expected since the hemispherical differences occur in the processing of speech sounds for dichotic hearing.…”

“…It has already been used in research with children and older adults 10,11,14,15 . However, few studies in Brazil 9,13,16 involve the administration and observation of TCST in adults. This study is necessary to contribute and add to knowledge concerning the use of this instrument in the clinical practice.…”

Pruebas monoaurales de habla de baja redundancia: Evaluación de la separación/cierre monoaural

“…Este hallazgo también ha sido evidenciado en la prueba SIN 15 y en la prueba TCST 55 , atribuyéndose a un efecto de aprendizaje y, por ende, a un aumento de la redundancia extrínseca 57 . Solamente se encontró un estudio en el cual se evidenció una ventaja significativa del oído derecho en condición de primer oído evaluado, sin embargo, los autores atribuyeron esto a temas atencionales debido a que las asimetrías funcionales no se podrían evidenciar en pruebas monoaurales 58 .…”

Study of Acute and Sub-Acute Effects of Auditory Training on the Central Auditory Processing in Older Adults with Hearing Loss—A Pilot Study

“…This phenomenon happens because auditory speech stimuli captured by the right ear are directly processed in the left hemisphere (responsible for speech processing) through the action of the contralateral pathways. When speech stimuli are captured by the left ear, they are first directed to the right hemisphere and are later sent via the corpus callosum for processing in the left hemisphere [ 15 , 17 ]. Monotic tests, such as the speech in noise test, or a filtered speech test, activate the auditory system’s ipsilateral and contralateral pathways.…”