Objective: To determine average acoustic reflex thresholds in geriatric groups by assessing ipsilateral and contralateral acoustic reflex and reflex decay tests.
Methods: A total of 25 elders between ages 65-84 years (74.3±5.4) and 25 individuals between ages 18-45 years (30.4±4.2) were recruited for the study. After ear, nose, and throat examination, ipsilateral and contralateral acoustic reflex thresholds at 500, 1000, 2000, and 4000 Hertz (Hz) were determined and a reflex decay test at contralateral 500 Hz was conducted. Ipsilateral acoustic reflex thresholds were obtained with high-frequency band, low-frequency band, and wide band noise, and the results were compared with ipsilateral acoustic reflexes at 500, 1000, 2000, and 4000 Hz.
Results: There was no statistically significant difference between the two groups in ipsilateral and contralateral acoustic reflex measurements at 500, 1000, 2000, and 4000 Hz (p>0.05). Negative reflex decay was obtained in all participants and no statistically significant difference between the two groups was observed in terms of reflex decay thresholds (p>0.05). Acoustic reflex with high-frequency band noise was observed in five of nine elders whose acoustic reflexes were not obtained at 2000 and 4000 Hz, whereas acoustic reflex with low-frequency band noise was observed in one of six elders who did not show reflexes at 500 and 1000 Hz.
Conclusion: It was concluded that although some changes were observed due to age, middle ear and stapes muscles work normally in geriatric group. In the reflex decay test, reliable results were obtained at contralateral 500 Hz. Acoustic reflex measurements with low- and high-frequency band noise may also be used to assess middle ear functions.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5782969 | PMC |
| http://dx.doi.org/10.5152/tao.2016.1556 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of Metabolic Dysfunction-Associated Steatohepatitis in Alertness, Associative Learning, and Astrocyte Density.
Brain Behav
January 2025
INEUROPA, Instituto de Neurociencias del Principado de Asturias, Oviedo, Spain.
Purpose: Metabolic dysfunction-associated steatohepatitis (MASH) is a prevalent disease caused by high fat and high cholesterol intake, which leads to systemic deterioration. The aim of this research is to conduct a psychobiological exploration of MASH in adult male rats.
Methods: Subjects who were administered a high-fat and high-cholesterol diet for 14 weeks.
[Acoustic reflex as one of the indicators of the maturity of the functioning of the auditory analyzer].
Vestn Otorinolaringol
December 2024
Pirogov Russian National Research Medical University, Moscow, Russia.
Unlabelled: The acoustic reflex is a physiological protective mechanism of the sound-conducting system of the auditory analyzer, which allows to identify various retrocochlear lesions of the human auditory system. The absence of its registration may indicate both pathology and immaturity of the auditory analyzer in children of the first year of life.
Objective: To register the acoustic reflex in children of the first year of life, to identify a full-fledged acoustic reflex at various frequencies and to analyze the dependence of its appearance on the timing of gestation.
Auricular Acupuncture Effect on Facial Contraction via Middle Ear Muscles Reflexes.
J Acupunct Meridian Stud
December 2024
Department of Audiology, Faculty of Health Sciences, Üsküdar University, Istanbul, Turkey.
Importance: Auricular acupuncture (AA) regulates the function of systems or organs by stimulating specific regions of the body via efferent pathways in the central areas through the auricle. This case aims to investigate the causes of facial contractions observed during AA.
Case Presentation: A female patient, diagnosed with depression and refusing medication, was referred for AA.
Didn't Even Blink: Dissociation, Complex Trauma Exposure and Decreased Startle Reactivity.
J Trauma Dissociation
December 2024
Department of Psychology, Smith College, Northampton, Massachusetts, USA.
The startle eyeblink reflex is thought to function as a means of orienting to salient stimuli, and, by proxy, sensitivity to threat cues. The absence or attenuation of this reflex may thus suggest disengagement from one's environment, potentially in circumstances when engagement is called for, and, therefore, may serve as a potential marker for dissociation as it occurs. The present study investigates whether individual differences in startle response magnitude and habituation are attributable to early and multiple trauma exposure, dissociation, and PTSD symptom severity.
View Article and Find Full Text PDFAffective modulation of emotional reactivity in euthymic patients with bipolar disorder.
Int J Psychophysiol
January 2025
Department of Psychiatry, Hacettepe University, Ankara, Türkiye.
Background: Affective modulation of startle reflex (AMSR) is a widely used experimental tool for assessing emotional reactivity. Previous research has shown inconsistent findings of emotional reactivity in amplitude in bipolar patients (BP). This study examined emotional reactivity (ER) in euthymic BP compared to healthy controls using both subjective and objective measures.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!