Loudness adaptation at high frequenciesa)

Miskiewicz, Andrzej; Scharf, Bertram; Hellman, Rhona P.; Meiselman, Carol H.

doi:10.1121/1.408154

Cited by 24 publications

(21 citation statements)

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“…A large intersubject variability in loudness adaptation similar to that observed here for tone decay has also been indicated by previous reports (Miskiewicz, Scharf, Hellman, & Meiselman, 1993;Scharf, 1983). The main finding in the present study is the increased tone decay in the presence ofcontralateral noise.…”

Section: Increased Tone Decay In the Presence Of Contralateral Noisesupporting

confidence: 90%

Tones disappear faster in the right ear than in the left

Khalfa

Micheyl

Pham

et al. 2000

Perception & Psychophysics

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In order to gain further information on the characteristics and physiological correlates oftone decay in humans, the tone decay test was administered to 58 normal-hearing subjects, successively in the left and right ears and in absence and presence of a contralateral noise. The results revealed that tone decay was greater in the right than in the left ear and was increased by contralateral noise. The contralateral effect of this noise on cochlear biomechanisms was then estimated by measuring contralaterally induced variations in the amplitude of click-evoked otoacoustic emissions in the same subjects. In the right ear, the increase in tone decay and the decrease in otoacoustic emission amplitude-both induced by contralateral noise-were positively correlated (r = .315, p =.016). Furthermore, the contralateral changes in otoacoustic emission amplitude were found to be on average larger in the right than in the left ear, this asymmetry being correlated with that observed for the tone decay. These findings are discussed in relation to previous results on simple and induced loudness adaptation in the vicinity of threshold, on contralateral attenuation of otoacoustic emissions and on the influence of the auditory efferents on cochlear biomechanisms.

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Section: Increased Tone Decay In the Presence Of Contralateral Noisesupporting

confidence: 90%

Tones disappear faster in the right ear than in the left

Khalfa

Micheyl

Pham

et al. 2000

Perception & Psychophysics

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“…On average, the amount of decrease in discharge rate was about 40% and the time constant was 3-4 s in high-spontaneous-rate fibers for stimuli presented at 20-40 dB SL. Javel noticed that these values obtained in cat auditory nerve fibers closely resembled that observed in human loudness adaptation (Miskiewicz et al 1993), suggesting a peripherally based neural mechanism for loudness adaptation. One problem with the neural adaptation mechanism is that neural adaptation increases with increasing stimulation level but loudness adaptation decreases with increasing stimulation level.…”

Section: Introductionmentioning

confidence: 67%

“…Over the course of several minutes, the loudness of a sustained, fixed-level pure-tone can decrease by 70-100% at 5 dB sensation level (SL), 20% at 40 dB SL, and stay essentially unchanged at higher SLs (Hellman et al 1997). Loudness adaptation occurs mostly with high-frequency sounds (94,000 Hz) while low-frequency sounds show little or no adaptation (Miskiewicz et al 1993;Hellman et al 1997). …”

Section: Introductionmentioning

confidence: 99%

“…Both high-frequency and low-level tones produce more restricted excitation, and accordingly more adaptation than low-frequency and high-level tones (Scharf 1983). Quantitatively, the restricted excitation mechanism further suggests that the spread of excitation towards the basal part be used to calculate the amount of loudness adaptation (Miskiewicz et al 1993). …”

Section: Introductionmentioning

confidence: 99%

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Loudness Adaptation in Acoustic and Electric Hearing

Tang

Liu

Zeng

2006

JARO

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The present study is aimed to evaluate and compare loudness adaptation between normal hearing and cochlear-implant subjects. Loudness adaptation for 367-s pure tones was measured in five normal-hearing subjects at three frequencies (125, 1,000, and 8,000 Hz) and three levels (30, 60, and 90 dB SPL). In addition, loudness adaptation for 367-s pulse trains was measured in five Clarion cochlear-implant subjects at three stimulation rates (100, 991, and 4,296 Hz), three levels (10, 50, and 90% of the electric dynamic range), three stimulation positions (apical, middle and basal), and two stimulation modes (monopolar and bipolar). The method of successive magnitude estimation was used to quantify loudness adaptation. Similar to the previous results, we found that loudness adaptation in normal-hearing subjects increases with decreasing level and increasing frequency. However, we also found a small but significant loudness enhancement at 90 dB SPL in acoustic hearing. Despite large individual variability, we found that loudness adaptation in cochlear-implant subjects increases with decreasing levels, but is not significantly affected by the rate, place and mode of stimulation. A phenomenological model was proposed to predict loudness adaptation as a function of stimulus frequency and level in acoustic hearing. The present results were not fully compatible with either the restricted excitation hypothesis or the neural adaptation hypothesis. Loudness adaptation may have a central component that is dependent on the peripheral excitation pattern.

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“…The degree of auditory adaptation depends greatly on the method of stimulation and measurement, owing to the presence of sizable interaural interactions (Miskiewicz, Scharf, Hellman, & Meiselman, 1993;Scharf, 1991). Nevertheless, it is possible to say that auditory adaptation is considerably less than in most other senses.…”

Section: Fit Of the Model To Existing Psychophysical Datamentioning

confidence: 99%

A heuristic model of sensory adaptation

McBurney

Balaban

2009

Attention, Perception & Psychophysics

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Adaptation is a universal process in organisms as diverse as bacteria and humans, and across the various senses. This article proposes a simple, heuristic, mathematical model containing tonic and phasic processes. The model demonstrates properties not commonly associated with adaptation, such as increased sensitivity to changes, range shifting, and phase lead. Changes in only four parameters permit the model to predict empirical psychophysical data from different senses. The relatively prolonged time courses of responses to oral and topical capsaicin are used to illustrate and validate this mathematical modeling approach for different stimulus profiles. Other examples of phenomena elucidated by this modeling approach include the time courses of taste sensation, brightness perception, loudness perception, cross-adaptation to oral irritants, and cutaneous mechanoreception. It also predicts such apparently unrelated phenomena as perceived alcohol intoxication, habituation, and drug tolerance. Because the integration of phasic and tonic components is a conservative, highly efficacious solution to a ubiquitous biological challenge, sensory adaptation is seen as an evolutionary adaptation, and as a prominent feature of Mother Nature's small bag of tricks.

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Loudness adaptation at high frequenciesa)

Cited by 24 publications

References 0 publications

Tones disappear faster in the right ear than in the left

Tones disappear faster in the right ear than in the left

Loudness Adaptation in Acoustic and Electric Hearing

A heuristic model of sensory adaptation

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