Characteristics of Temporary Noise-Induced Tinnitus in Male and Female Subjects

Chermak, Gail D.; Dengerink, Joan E.

doi:10.3109/01050398709042158

Cited by 22 publications

(11 citation statements)

References 16 publications

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“…The acute form of noise-induced tinnitus has been described in several previous reports based on studies in human subjects (Loeb and Smith, 1967; Atherley et al, 1968; George and Kemp, 1989; Chermak and Dengerink., 1987). Some of its key features are its rapid onset (seconds to minutes) and its temporary duration (minutes to hours).…”

Section: Discussionmentioning

confidence: 72%

Evidence of activity-dependent plasticity in the dorsal cochlear nucleus, in vivo, induced by brief sound exposure

2016

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The purpose of the present study was to investigate the immediate effects of acute exposure to intense sound on spontaneous and stimulus-driven activity in the dorsal cochlear nucleus (DCN). We examined the levels of multi- and single-unit spontaneous activity before and immediately following brief exposure (2 minutes) to tones at levels of either 109 or 85 dB SPL. Exposure frequency was selected to either correspond to the units’ best frequency (BF) or fall within the borders of its inhibitory side band. The results demonstrate that these exposure conditions caused significant alterations in spontaneous activity and responses to BF tones. The induced changes have a fast onset (minutes) and are persistent for durations of at least 20 minutes. The directions of the change were found to depend on the frequency of exposure relative to BF. Transient decreases followed by more sustained increases in spontaneous activity were induced when the exposure frequency was at or near the units’ BF, while sustained decreases of activity resulted when the exposure frequency fell inside the inhibitory side band. Follow-up studies at the single unit level revealed that the observed activity changes were found on unit types having properties which have previously been found to represent fusiform cells. The changes in spontaneous activity occurred despite only minor changes in response thresholds. Noteworthy changes also occurred in the strength of responses to BF tones, although these changes tended to be in the direction opposite those of the spontaneous rate changes. We discuss the possible role of activity-dependent plasticity as a mechanism underlying the rapid emergence of increased spontaneous activity after tone exposure and suggest that these changes may represent a neural correlate of acute noise-induced tinnitus.

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Section: Discussionmentioning

confidence: 72%

Evidence of activity-dependent plasticity in the dorsal cochlear nucleus, in vivo, induced by brief sound exposure

2016

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“…This interpretation is not mutually exclusive with the presence of tinnitus. Another concern is that one study of temporary tinnitus in humans reported a tinnitus percept that appeared as early as 5 min after exposure (Chermak and Dengerink, 1987), whereas we did not observe an increase in gap detection deficits until 40e60 min after exposure. It is not clear whether this reflects a difference in the underlying tinnitus phenomena, or a methodological difference (i.e., perceptual report vs. measurements of gap-detection deficits).…”

Section: Discussionmentioning

confidence: 81%

“…Although relatively few studies have been performed (Loeb and Smith, 1967;Atherley et al, 1968;Chermak and Dengerink, 1987), it is clear that exposure to 5 min of a 110 dB sound pressure level (SPL) pure tone causes temporary, tonal tinnitus, lasting from 15 to 50 min, in most (70e90%) human subjects. The relationship between tinnitus pitch and trauma frequency appears to be variable, although tinnitus pitch tends to increase with increasing trauma frequency, and tinnitus pitch does not necessarily match the frequency of maximum temporary hearing threshold shift.…”

Section: Introductionmentioning

confidence: 99%

Isoflurane blocks temporary tinnitus

2012

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“…Here the outcome was that tinnitus generally is experienced as a continuous tonal sound with a pitch distributed over the mid-and high frequency range. [9,10] To the best of our knowledge, there are no publications available addressing the characteristics of transient and chronic tinnitus induced by leisure noise. In the present study, the characteristics of both transient and chronic tinnitus induced by leisure noise were documented by means of a questionnaire.…”

Section: Discussionmentioning

confidence: 98%

“…In general, transient tinnitus does usually not last longer than a few seconds to a maximum of a couple of days, while chronic tinnitus lasts from months to years. [7] Both transient and chronic tinnitus are generally characterized as tonal [8,9] with a high pitch. [8,10,11] Studies on the effects of leisure noise exposure on hearing thresholds revealed inconsistent results.…”

Section: Introductionmentioning

confidence: 99%

Prevalence and characteristics of tinnitus after leisure noise exposure in young adults

et al. 2014

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The main goal of this study was to assess the prevalence and characteristics of tinnitus among students after exposure to leisure noise. In addition, the effects of tinnitus on otoacoustic emissions (OAEs) in participants suffering from chronic tinnitus were evaluated. The study consisted of two parts. First, a questionnaire regarding leisure noise exposure and tinnitus was completed. Second, the hearing status of the subjects suffering from chronic tinnitus was evaluated and compared with a matched control group (CG). Furthermore, the psychoacoustical characteristics of their tinnitus in the chronic tinnitus group (TG) were established. The questionnaire was answered by 151 respondents. Seven persons suffering from chronic tinnitus were examined further in the second part of the study. Transient tinnitus was observed in 73.5% of the respondents after leisure noise exposure and 6.6% experienced chronic tinnitus. Transient and chronic tinnitus had similar characteristics, as established by the questionnaire. The amplitude of transient evoked otoacoustic emissions and distortion product otoacoustic emissions was reduced and the amount of efferent suppression was smaller in the TG as compared with the CG. Tinnitus induced by leisure noise is observed frequently in young adults. The characteristics of tinnitus cannot predict whether it will have a transient or rather a chronic nature. In subjects suffering from tinnitus, subclinical damage that cannot be detected by audiometry can be demonstrated by measuring OAEs. These findings underpin the importance of educating youth about the risks of noise exposure during leisure activities.

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Characteristics of Temporary Noise-Induced Tinnitus in Male and Female Subjects

Cited by 22 publications

References 16 publications

Evidence of activity-dependent plasticity in the dorsal cochlear nucleus, in vivo, induced by brief sound exposure

Evidence of activity-dependent plasticity in the dorsal cochlear nucleus, in vivo, induced by brief sound exposure

Isoflurane blocks temporary tinnitus

Prevalence and characteristics of tinnitus after leisure noise exposure in young adults

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