Sound Detection and Processing by Fish: Critical Review and Major Research Questions (Part 1 of 2)

Popper, Arthur N.; Fay, Richard R.

doi:10.1159/000113821

Cited by 333 publications

(198 citation statements)

References 138 publications

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“…Stimulus amplitudes were then adjusted in MATLAB so that relative sound pressures across all frequencies (75-385Hz) were within a ±1dB window. Although all calibrations and data are reported as measures of pressure, previous studies have shown that the midshipman peripheral auditory system is primarily sensitive to particle motion and not pressure (Weeg et al, 2002), like many other fishes that lack specialized adaptations for pressure detection (Popper and Fay, 1993). Despite their sensitivity to particle motion, midshipman auditory afferents respond similarly to both iso-pressure stimuli from sound sources such as those used in the present study and vertical acceleration (Weeg et al, 2002).…”

Section: Stimulus Generationmentioning

confidence: 99%

“…We have investigated peripheral auditory plasticity in a teleost fish, the plainfin midshipman (Porichthys notatus Girard 1854; family Batrachoididae), that shows seasonal, reproductive state-dependent plasticity in the ability to encode the upper harmonics of vocalizations (Fig.1A,B). As females shift from a non-reproductive to a reproductive state, they exhibit a steroid-dependent improvement in frequency encoding by eighth nerve afferents to the saccule (Sisneros and Bass, 2003;Sisneros et al, 2004a), the main auditory division of the inner ear in midshipman and most teleosts (Fig.1C insert) (McKibben and Bass, 1999;Popper and Fay, 1993). We tested the hypothesis that this plasticity is not sex dependent, with males also exhibiting concurrent shifts in plasma steroid levels and auditory encoding as reflected in frequency sensitivity of the hair cell epithelium of the saccule.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal plasticity of auditory hair cell frequency sensitivity correlates with plasma steroid levels in vocal fish

Rohmann

Bass

2011

Journal of Experimental Biology

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SUMMARYVertebrates displaying seasonal shifts in reproductive behavior provide the opportunity to investigate bidirectional plasticity in sensory function. The midshipman teleost fish exhibits steroid-dependent plasticity in frequency encoding by eighth nerve auditory afferents. In this study, evoked potentials were recorded in vivo from the saccule, the main auditory division of the inner ear of most teleosts, to test the hypothesis that males and females exhibit seasonal changes in hair cell physiology in relation to seasonal changes in plasma levels of steroids. Thresholds across the predominant frequency range of natural vocalizations were significantly less in both sexes in reproductive compared with non-reproductive conditions, with differences greatest at frequencies corresponding to call upper harmonics. A subset of non-reproductive males exhibiting an intermediate saccular phenotype had elevated testosterone levels, supporting the hypothesis that rising steroid levels induce non-reproductive to reproductive transitions in saccular physiology. We propose that elevated levels of steroids act via long-term (days to weeks) signaling pathways to upregulate ion channel expression generating higher resonant frequencies characteristic of nonmammalian auditory hair cells, thereby lowering acoustic thresholds.

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Section: Stimulus Generationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Seasonal plasticity of auditory hair cell frequency sensitivity correlates with plasma steroid levels in vocal fish

Rohmann

Bass

2011

Journal of Experimental Biology

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“…Continuous white noise of 110 and 130 dB L Leq significantly influenced auditory thresholds in both otophysine species, whereas in L. gibbosus the 110 dB noise did not shift hearing thresholds; only the 130 dB noise level evoked a smaller (as compared to the otophysines) loss in auditory sensitivity. Hearing generalists such as sunfish are generally less sensitive to sounds than hearing specialists (i.e., otophysines; Hawkins and Myrberg 1983;Popper and Fay 1993;Ladich and Popper, 2004). In our experiments, the spectrum level of the lower noise lies at least 25 dB below the hearing thresholds so that the noise has no masking effect.…”

Section: Differential Effects Of Background Noise On Hearing Sensitivitymentioning

confidence: 99%

Hearing in Fishes under Noise Conditions

Wysocki

Ladich

2005

JARO

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Our current knowledge on sound detection in fishes is mainly based on data acquired under quiet laboratory conditions. However, it is important to relate auditory thresholds to background noise in order to determine the signal-detecting abilities of animals in the natural environment. We investigated the influence of two noise levels within the naturally occurring range on the auditory sensitivity of two hearing specialists (otophysines) and a hearing generalist. Audiograms of the goldfish Carassius auratus, the lined Raphael catfish Platydoras costatus and the pumpkinseed sunfish Lepomis gibbosus (hearing generalist) were determined between 200 and 4000 Hz (100Y800 Hz for L. gibbosus) under laboratory conditions and under continuous white noise by recording auditory evoked potentials (AEPs). Baseline thresholds showed greatest hearing sensitivity around 500 Hz in goldfish and catfish and at 100 Hz in the sunfish. Continuous white noise of 110 dB RMS elevated the thresholds by 15Y20 dB in C. auratus and by 4Y22 dB in P. costatus. White noise of 130 dB RMS elevated overall hearing thresholds significantly in the otophysines by 23Y44 dB. In the goldfish, threshold did not shift at 4 kHz. In contrast, auditory thresholds in the sunfish declined only at the higher noise level by 7Y11 dB. Our data show that the AEP recording technique is suitable for studying masking in fishes, and that the occurrence and degree of the threshold shift (masking) depend on the hearing sensitivity of fishes, the frequency, and noise levels tested. The results indicate that acoustic communication and orientation of fishes, in particular of hearing specialists, are limited by noise regimes in their environment.

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“…It has been proposed that the inner ear of otophysans can be stimulated by particle motion via the direct pathway and by sound pressure via the indirect pathway, i.e., the swim bladder and the Weberian ossicles (see Popper and Fay 1993;Lu 2004 for reviews). The swim bladder in zebrafish starts to inflate at 5 dpf but the Weberian ossicles do not exist for zebrafish younger than 1 week old (Higgs et al 2003;Grande and Young 2004).…”

Section: Introductionmentioning

confidence: 99%

Early Development of Hearing in Zebrafish

DeSmidt

2013

JARO

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The zebrafish (Danio rerio) has become a valuable vertebrate model for human hearing and balance disorders because it combines powerful genetics, excellent embryology, and exceptional in vivo visualization in one organism. In this study, we investigated auditory function of zebrafish at early developmental stages using the microphonic potential method. This is the first study to report ontogeny of response of hair cells in any fish during the first week post fertilization. The right ear of each zebrafish embedded in agarose was linearly stimulated with a glass probe that was driven by a calibrated piezoelectric actuator. Using beveled micropipettes filled with standard fish saline, extracellular microphonic potentials were recorded from hair cells in the inner ear of zebrafish embryos or larvae in response to 20, 50, 100, and 200-Hz stimulation. Saccular hair cells expressing green fluorescent protein of the transgenic zebrafish from 2 to 7 days post fertilization (dpf) were visualized and quantified using confocal microscopy. The otic vesicles' areas, otoliths' areas, and saccular hair cell count and density increased linearly with age and standard body length. Microphonic responses increased monotonically with stimulus intensity, stimulus frequency, and age of zebrafish. Microphonic threshold at 200 Hz gradually decreased with zebrafish age. The increases in microphonic response and sensitivity correlate with the increases in number and density of hair cells in the saccule. These results enhance our knowledge of early development of auditory function in zebrafish and provide the control data that can be used to evaluate hearing of young zebrafish morphants or mutants.

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Sound Detection and Processing by Fish: Critical Review and Major Research Questions (Part 1 of 2)

Cited by 333 publications

References 138 publications

Seasonal plasticity of auditory hair cell frequency sensitivity correlates with plasma steroid levels in vocal fish

Seasonal plasticity of auditory hair cell frequency sensitivity correlates with plasma steroid levels in vocal fish

Hearing in Fishes under Noise Conditions

Early Development of Hearing in Zebrafish

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