The Reliability of Electrodermal Audiometry with Aphasic Adults

1967 ◽  
Vol 10 (2) ◽  
pp. 328-332 ◽  
Author(s):  
George T. Mencher
Keyword(s):  
Pure Tone ◽  
Auditory Thresholds ◽  
Threshold Measure

Forty hospitalized male aphasic subjects were tested to determine if electrodermal audiometry would yield more reliable auditory thresholds than Standard pure-tone tests. Each subject received a Standard pure-tone test to establish thresholds at 1,000 and 2,000 Hz in both ears, an EDR threshold measure of the same frequencies, and two exact replications of both tests, adminstered one to four weeks later. The data suggest that EDR audiometry can be reliably applied to aphasic males.

scholarly journals Audiological implications of COVID-19: an integrative literature review

Revista CEFAC ◽  
2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Georgea Espindola Ribeiro ◽  
Daniela Polo Camargo da Silva
Keyword(s):  
Hearing Loss ◽  
Auditory System ◽  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Exclusion Criteria ◽  
Auditory Thresholds ◽  
High Frequencies ◽  
Coronavirus Infection ◽  
Conductive Hearing ◽  
Pure Tone Threshold

ABSTRACT Purpose: to survey the national and international literature on the impacts of the coronavirus infection on the auditory system. Methods: an integrative review with search in the BIREME, PubMed, Scopus, and Web of Sciences databases. Inclusion criteria: articles in Portuguese and English whose subject was the coronavirus infection and its effects on the auditory system. Exclusion criteria: information from books and/or chapters, letters to editors, review articles, experience reports. The search strategy was based on the following combined descriptors, respectively in Portuguese and English: “Infecções por coronavírus”, “Audição”, “Perda auditiva”, “Coronavirus infections”, “Hearing”, “Hearing Loss”. Results: out of 43 articles found, two approached the issue. The first study assessed 20 patients that tested positive for COVID-19, though asymptomatic, who underwent pure-tone threshold audiometry and otoacoustic emissions. A significant increase in the auditory thresholds at high frequencies and a smaller response amplitude in the transient evoked otoacoustic emissions of those who tested positive for COVID-19 were observed when compared to that of controls. The second study reported the case of an asymptomatic 35-year-old COVID-19 female patient, who complained of otalgia and tinnitus, after being contaminated. The pure-tone threshold audiometry and tympanometry indicated mild unilateral (right ear) conductive hearing loss, with a type B tympanometric curve on that side. Conclusion: the studies included in this review showed different consequences of COVID-19 on hearing, with possible impairments on the sensory and mechanical structures of the auditory system. The knowledge of COVID-19 is limited, and further studies on its real impact on the auditory system are necessary.

Current Evaluation of Pseudohypacusis: Strategies and Classification

1998 ◽  
Vol 107 (8) ◽  
pp. 638-647 ◽  
Author(s):  
William W. Qiu ◽  
Fred J. Stucker ◽  
Shengguang S. Yin ◽  
Louis W. Welsh
Keyword(s):  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Objective Method ◽  
Quantitative Diagnosis ◽  
Auditory Thresholds ◽  
Medicolegal Aspects ◽  
Clinical Investigations ◽  
Auditory Brain Stem ◽  
Audiologic Evaluation ◽  
Complex Cases

Some cases of pseudohypacusis may involve medicolegal aspects and require a confirmed and quantitative diagnosis. These challenging cases must be identified, and then evaluated with basic audiologic and sophisticated electrophysiologic tests. Data on 64 patients with pseudohypacusis collected over a 4-year period are reported. A classification system was developed from an analysis of these cases and is presented for clinical evaluation and diagnosis. In many cases, conventional audiologic evaluation involving pure tone and speech audiometry may be adequate and sufficient for diagnosis. In more complex cases, evoked otoacoustic emissions (EOAEs) and auditory brain stem responses (ABRs) are needed for confirmation of peripheral auditory sensitivity. We found that EOAEs were the most rapid, economical, and objective method, and confirmed the diagnosis of hearing loss in 78.1 % of cases. Fifteen percent of subjects required ABRs to substantiate the diagnosis. The reliability of basic audiologic tests based on previous clinical investigations and data from the literature are discussed. We conclude that a thorough knowledge and understanding of pseudohypacusis is essential to verify the existence of pseudohypacusis, to determine its type, and to quantify the auditory thresholds.

scholarly journals A comparison of pure tone auditory thresholds in human infants and adults

1983 ◽  
Vol 6 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Joan M. Sinnott ◽  
David B. Pisoni ◽  
Richard N. Aslin
Keyword(s):  
Pure Tone ◽  
Human Infants ◽  
Auditory Thresholds

Non-simultaneous auditory masking in the goldfish, Carassius auratus

1979 ◽  
Vol 83 (1) ◽  
pp. 145-158
Author(s):  
A. N. Popper ◽  
N. L. Clarke
Keyword(s):  
Inner Ear ◽  
Pulse Duration ◽  
Carassius Auratus ◽  
Pure Tone ◽  
Auditory Masking ◽  
Auditory Thresholds ◽  
Noise Pulse ◽  
Goldfish Carassius Auratus ◽  
Tone Pulse

Auditory thresholds were determined for 500 HZ pure tone pulses of 15, 25 and 50 ms duration presented leading, following or simultaneously with noise pulses of 50 or 250 ms duration. Masking by the noise decreased: (i) with an increase in tone pulse duration; (ii) with a shortening of the noise pulse duration; and (iii) as the interval between tone and noise pulses was increased from 0 to 350 ms. The effect of the noise was independent of whether the noise led or followed the pure tone. It is suggested that the most significant factor affecting masking was the duration of the interval between tone and noise, and that the site for the interactions between signals is central to the inner ear.

Sensorineural Hearing Loss and Upward Spread of Masking

1970 ◽  
Vol 13 (2) ◽  
pp. 426-437 ◽  
Author(s):  
Ellen S. Martin ◽  
J. M. Pickett
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Pure Tone ◽  
Normal Hearing ◽  
Sensorineural Hearing ◽  
Auditory Thresholds ◽  
Noise Rejection ◽  
Low Pass ◽  
Masking Noise ◽  
Sensorineural Loss

Pure-tone auditory thresholds were obtained in quiet and in three levels of masking noise for one normal-hearing group and five groups of subjects with different degrees of sensorineural loss. The masker was a low-pass noise, cut off at 250 Hz. It was presented at overall levels of 77, 97, and 107 dB SPL. Pure-tone thresholds were obtained at test frequencies within and above the masking band. A measure of noise rejection slope was used to describe spread of masking. Degree of loss, configuration of loss, and level of masking noise appear to have marked influences on upward spread of masking patterns in sensorineural subjects.

Adults with Auditory Neuropathy: Comparison of Auditory Steady-State Response and Pure-Tone Audiometry

2009 ◽  
Vol 20 (10) ◽  
pp. 621-628 ◽  
Author(s):  
Zahra Jafari ◽  
Saeed Malayeri ◽  
Hassan Ashayeri ◽  
Mahdi Azizabadi Farahani
Keyword(s):  
Steady State ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Auditory Neuropathy ◽  
High Rate ◽  
Steady State Response ◽  
Low Frequencies ◽  
Auditory Thresholds ◽  
State Response ◽  
Auditory Steady State Response

Background: The relation between the auditory steady-state response (ASSR) and behavioral audiometric thresholds requires further clarification in the case of adults with auditory neuropathy/auditory dys-synchrony (AN/AD). Purpose: The aim of this study was to compare pure-tone audiometric threshold (PTAT) and ASSR in adults with AN/AD. Study Sample: Sixteen adult participants (32 ears) with AN/AD, ranging in age from 14 to 34 years. Data Collection and Analysis: PTAT and ASSR with high-rate stimulus modulation were measured at four octave frequencies, 500, 1000, 2000, and 4000 Hz, in each ear. The behavioral auditory thresholds were compared with ASSR estimated thresholds at each frequency. Analyses included comparison of group means and coefficients of correlation. Results: The average pure-tone thresholds revealed a moderate hearing loss in the AN/AD patients with a focus on the low frequencies. Low-frequency loss audiograms were observed in almost two-thirds of the participants. The estimated auditory thresholds measured by ASSR at all frequencies were substantially higher than the PTAT measures. There were no significant correlations between the PTAT and ASSR measurements at the 1000, 2000, and 4000 Hz frequencies (p > .05); the correlation between the two measures at 500 Hz (p = .029, r = 0.39) was weak but significant. Conclusion: There was no significant correlation between the PTAT and ASSR results at the majority of the frequencies usually tested in adults with AN/AD. Although ASSR is not a suitable method to estimate auditory thresholds in this group of patients, perhaps it can be utilized as an adjunct technique for the differential diagnosis of this disorder.

Pure tone auditory thresholds can change according to duration of interrupted tones in patients with psychogenic hearing loss

2011 ◽  
Vol 131 (6) ◽  
pp. 628-632 ◽  
Author(s):  
Naoki Oishi ◽  
Yasuhiro Inoue ◽  
Akemi Hori ◽  
Reiko Yakushimaru ◽  
Naoyuki Kohno ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Pure Tone ◽  
Auditory Thresholds

Computerized Pure-Tone Audiometric Procedures

1973 ◽  
Vol 16 (4) ◽  
pp. 676-684 ◽  
Author(s):  
Thomas J. Wood ◽  
Walter W. Wittich ◽  
Robert B. Mahaffey
Keyword(s):  
Pure Tone ◽  
Bone Conduction ◽  
Correlation Coefficients ◽  
Testing Procedure ◽  
Computerized Testing ◽  
Test Procedures ◽  
Auditory Thresholds ◽  
Computerized Procedures ◽  
Auditory Functions ◽  
Audiometric Test

The purpose of this study was to develop a computer program and the necessary interfacing systems which would enable a PDP/8-I digital computer to (1) control all aspects of administering pure-tone air- and bone-conduction stimuli; (2) recognize the need for masking based on unmasked auditory thresholds, determine the appropriate level of masking, and regulate the presentation of the masker to the nontest ear; (3) analyze the subject’s responses to the above procedures in terms of threshold-determination criteria; and (4) present the obtained thresholds in audiogram format at the conclusion of the computerized testing procedure. The threshold accuracy of this automated design was evaluated in terms of Pearson product-moment correlation coefficients and average deviations of differences obtained between thresholds determined by a clinical audiologist and computer-determined threshold values when each performed these audiometric test procedures on the same hypacusic subjects. The results of this study indicate that the computerized procedures used to determine pure-tone air- and bone-conduction thresholds are, in terms of the patients tested, a clinically feasible means of assessing these auditory functions.

Relation of Pure Tone Thresholds to Background Noise Level in the Atlantic Cod (Gadus morhua)

1968 ◽  
Vol 25 (6) ◽  
pp. 1155-1160 ◽  
Author(s):  
Udo Buerkle
Keyword(s):  
Noise Level ◽  
Background Noise ◽  
Pure Tone ◽  
Gadus Morhua ◽  
Atlantic Cod ◽  
Noise Levels ◽  
Conditioning Procedure ◽  
Signal To Noise ◽  
Auditory Thresholds ◽  
Four Levels

A conditioning procedure was used to determine auditory thresholds of cod at frequencies 35.3, 70.7, 141, 283, and 400 Hz at four levels of background noise. The noise was produced in octave bands centered at the test frequencies, and ranged in level from −14 db to +4 db (re 1 microbar). Up to 283 Hz thresholds varied directly with background noise, and signal-to-noise levels at thresholds remained approximately the same at all background noise levels for each frequency. Thresholds at 400 Hz were much higher and showed no relationship to noise. Mean signal-to-noise levels are calculated.

Pure-tone auditory thresholds are decreased in depressed people with post-traumatic stress disorder

2010 ◽  
Vol 127 (1-3) ◽  
pp. 169-176 ◽  
Author(s):  
Stéphanie Aubert-Khalfa ◽  
Jean-Pierre Granier ◽  
Emmanuelle Reynaud ◽  
Myriam El Khoury ◽  
Eva-Maria Grosse ◽  
...  
Keyword(s):  
Post Traumatic Stress Disorder ◽  
Traumatic Stress ◽  
Pure Tone ◽  
Stress Disorder ◽  
Post Traumatic Stress ◽  
Auditory Thresholds ◽  
Post Traumatic
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