Effect of contralateral stimulation on acoustic reflectance measurements

Pichelli, Tathiany Silva; Soares, Jordana Costa; Cibin, Bruna Carla; Carvallo, Renata Mota Mamede

doi:10.1016/j.bjorl.2015.07.004

Cited by 1 publication

(2 citation statements)

References 38 publications

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“…While reflexes elicited by 0.5 kHz and 1 kHz pure tones in stimulus presentation in the presence of contralateral noise had acceptable reliability, they were not found reliable at 2 kHz [39]. On the other hand, Pichelli et al [38] evaluated chirp stimulus at 2 kHz and showed that muscle response tended to increase when efferent suppression was activated compared with the test condition with contralateral noise. The results of these two studies agree with each other and show that low frequencies are more reliable.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, studies showed that higher acoustic reflex thresholds were obtained in the presence of contralateral noise stimuli [38][39][40], and when reflex latencies were examined, it was observed that the latencies for on-time reflexes were lengthened while those for off-time reflexes were shortened [41]. The articles reviewed in this study on frequency are summarized in Table 3.…”

Section: Frequencymentioning

confidence: 90%

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The effects of changes in stimulus properties on acoustic stapedius reflex response: a systematic review

Başöz

Oktay

Kuru

et al. 2022

Egypt J Otolaryngol

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Background The acoustic stapedius reflex is formed by the contraction of the stapedius muscle in the middle ear cavity when a loud sound is given to both ears. Changes in properties such as the intensity, frequency, duration, and speed of stimulus affect reflex responses. Methods As a result of the literature review conducted between 2005 and 2020, 2846 articles were reviewed and 30 articles evaluating the effects of stimulus changes on acoustic reflex responses were included in the study. Main text In the studies reviewed, it was observed that lower threshold values were obtained by using noise as a stimulus instead of pure sound. Different results were found regarding the duration and frequency of the stimulus. It has been reported that stimulus frequency does not have a significant effect on acoustic reflex delays and the acoustic stapedius reflex threshold increases in the presence of opposite side noise. Conclusion As a result of the studies reviewed, it was seen that the changes in many properties of the stimulus that activate the middle ear muscles affected the reflex response.

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Section: Discussionmentioning

confidence: 99%