Burguetti Fernanda Acaui Ribeiro, Carvallo Renata Mota Mamede
Doctoral degree, researcher in the Laboratório de Investigação Fonoaudiológica em Audição Humana da FMUSP.
Livre-docência (habilitation), associate professor, Speech Therapy Course, Faculdade de Medicina da USP. Faculdade de Medicina da Universidade de São Paulo.
Braz J Otorhinolaryngol. 2008 Sep-Oct;74(5):737-745. doi: 10.1016/S1808-8694(15)31385-9.
Auditory processing depends on afferent and efferent auditory pathways integrity. The efferent auditory system may be assessed in humans by two non-invasive and objective methods: acoustic reflex and otoacoustic emissions suppression.
Analyze the efferent auditory system activity by otoacoustic emission suppression and acoustic reflex sensitization in human subjects with auditory processing disorders.
Prospective study: fifty children with auditory processing disorders (study group) and thirty-eight children without auditory processing disorders (control group) were evaluated using otoacoustic emission with and without contralateral noise; and acoustic reflex with and without contralateral facilitating stimuli.
OAE suppression mean value was equal to or less than 1.50 dB for the control group, and equal to or less than 1.26 dB for the study group. The mean sensitization reflex value was equal to or less than 14.60 dB for the study group and equal to or less than 15.21 dB for the control group. There was no statistically significant difference between the responses from the control group and the study group in both procedures.
The study group had lower OAE suppression values and higher acoustic reflex sensitization values when compared to the control group.
听觉处理依赖于传入和传出听觉通路的完整性。在人类中，传出听觉系统可以通过两种非侵入性客观方法进行评估：声反射和耳声发射抑制。
通过耳声发射抑制和声反射敏化分析患有听觉处理障碍的人类受试者的传出听觉系统活动。
前瞻性研究：使用有和没有对侧噪声的耳声发射；以及有和没有对侧促进刺激的声反射，对50名患有听觉处理障碍的儿童（研究组）和38名没有听觉处理障碍的儿童（对照组）进行评估。
对照组的耳声发射抑制平均值等于或小于1.50dB，研究组等于或小于1.26dB。研究组的平均敏化反射值等于或小于14.60dB，对照组等于或小于15.21dB。在这两种程序中，对照组和研究组的反应之间没有统计学上的显著差异。
与对照组相比，研究组的耳声发射抑制值较低，声反射敏化值较高。
