Objective: Distortion product otoacoustic emission (DPOAE) is a tool for an objective examination of the cochlea function. While the clinical application of DPOEA test is in progress, the measurements vary depending on the stimulus conditions. We aimed to determine the most appropriate stimulus level in the clinical application of DPOAE test.
Methods: Ninety-seven normal hearing ears and 80 hearing-impaired ears (total 177) were subjected to this study. Two levels of stimulations (L1 and L2) were applied as follows: L1 = L2 = 70 dB; L1 = L2 = 60 dB and L1 = 60/L2 = 50 dB, and DP level was measured at each stimulation, and compared with hearing level.
Results: DP level was highest at L1 = L2 = 70 dB. Normal hearing ears and hearing-impaired ears were well differentiated at L1 = L2 = 60 dB.
Conclusion: In clinical application of DPOAE test, DP levels should be measured at the stimulus level most appropriate for the purposes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0385-8146(01)00069-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Benefits of the "worst-case scenario": a multi-level examination of the effects of confronting the feared outcome during imagery-based exposure.
Cogn Behav Ther
January 2025
Department of Psychology, Vanderbilt University, 312 Wilson Hall, 111 21st Avenue South, Nashville, TN 37240, USA.
Exposure therapy is an efficacious treatment for anxiety-related disorders. Yet, fear often returns after treatment. Occasional reinforcement, in which the feared stimulus is intermittently presented during extinction, increases safety learning and slows fear renewal in conditioning paradigms and analogue samples, but no studies to date have examined this strategy in clinical samples.
View Article and Find Full Text PDFArtificial intelligence, recessionary pressures and population health.
Bull World Health Organ
February 2025
Swiss Academies of Arts and Sciences, Bern, Switzerland.
Economic and labour policies have a considerable influence on health and well-being through direct financial impacts, and by shaping social and physical environments. Strong economies are important for public health investment and employment, yet the rapid rise of generative artificial intelligence (AI) has the potential to reshape economies, presenting challenges beyond mere temporary market disruption. Generative AI can perform non-routine cognitive tasks, previously unattainable though traditional automation, creating new efficiencies.
View Article and Find Full Text PDFEx vivo electrophysiological evaluation of peripheral nerve functioning following exposition of adult mice to the organophosphorus pesticide chlormephos.
Environ Toxicol Pharmacol
January 2025
Université Paris-Saclay, CEA, Institut des sciences du vivant Frédéric Joliot, Département Médicaments et Technologies pour la Santé (DMTS), Service d'Ingénierie Moléculaire pour la Santé (SIMoS), EMR CNRS/CEA 9004, 91191 Gif-sur-Yvette, France. Electronic address:
The organophosphorus pesticide chlormephos was tested for its potential peripheral neurotoxicity by analyzing the diphasic compound action potential (CAP) of sciatic nerves isolated from adult mice chronically exposed to a sub-lethal dose of this pesticide, compared with control age-matched animals being only exposed to the vehicle. No significant modification was detected between chlormephos-exposed and control groups in their nerve responsiveness to stimulus. Furthermore, similar values of CAP kinetic variables were obtained from the two mouse groups.
View Article and Find Full Text PDFFeature-selective adaptation of numerosity perception.
Proc Biol Sci
January 2025
Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy.
Perceptual adaptation has been widely used to infer the existence of numerosity detectors, enabling animals to quickly estimate the number of objects in a scene. Here, we investigated, in humans, whether numerosity adaptation is influenced by stimulus feature changes as previous research suggested that adaptation is reduced when the colour of adapting and test stimuli did not match. We tested whether such adaptation reduction is due to unspecific novelty effects or changes of stimuli identity.
View Article and Find Full Text PDFA DOF transcriptional repressor-gibberellin feedback loop plays a crucial role in modulating light-independent seed germination.
Plant Commun
January 2025
Department of Biology and Biotechnology Charles Darwin, University of Rome, Sapienza, P. le Aldo Moro 5, 00185, Rome, Italy. Electronic address:
Plants evolved several strategies to cope with the ever-changing environment. One example of this is given by seed germination, which must occur when environmental conditions are suitable for plant life. In the model system Arabidopsis thaliana seed germination is induced by light; however in nature, seeds of several plant species can germinate regardless of this stimulus.
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!