Coding of sound direction in the auditory periphery of the lake sturgeon,<i>Acipenser fulvescens</i>

Meyer, Michaela; Popper, Arthur N.; Fay, Richard R.

doi:10.1152/jn.00390.2011

Cited by 16 publications

(4 citation statements)

References 42 publications

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“…The work on modern fishes described above provides a framework for how the auditory systems of these early aquatic tetrapods could have been organized. Although most of the physiological data on directional hearing come from teleosts, the data are consistent with anatomical and physiological results from other taxonomically distant fishes [McCormick 1999; Meyer, 2010, 2012] and thus may reflect the organization of the auditory systems of the early aquatic tetrapods [Carr and Christensen-Dalsgaard, 2016]. It seems unlikely that neural circuits sensitive to sound in air appeared de novo because sound sensitivity would have been based on the same auditory end organs as in the ancestors.…”

Section: The Transition Onto Land: Early Tetrapodssupporting

confidence: 66%

“…The directional response properties of nVIII afferents have been assessed only in the lake sturgeon ( Acipenser fulvescens) [Meyer et al 2010, 2012]. Primary auditory afferents in the posterior ramus of nVIII (after the convergence of afferents from the saccule, lagena, and macula neglecta) responded to low frequencies (100–300 Hz), exhibited phase locking to the sinusoidal stimuli, and had the characteristic cosine directional response pattern of hair cells and primary afferents found in teleost fishes (fig.…”

Section: Directional Hearing In Osteichthyesmentioning

confidence: 99%

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Evolution of Sound Source Localization Circuits in the Nonmammalian Vertebrate Brainstem

Walton

Christensen‐Dalsgaard

Carr

2017

Brain Behav Evol

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The earliest vertebrate ears likely subserved a gravistatic function for orientation in the aquatic environment. However, in addition to detecting acceleration created by the animal's own movements, the otolithic end organs that detect linear acceleration would have responded to particle movement created by external sources. The potential to identify and localize these external sources may have been a major selection force in the evolution of the early vertebrate ear and in the processing of sound in the central nervous system. The intrinsic physiological polarization of sensory hair cells on the otolith organs confers sensitivity to the direction of stimulation, including the direction of particle motion at auditory frequencies. In extant fishes, afferents from otolithic end organs encode the axis of particle motion, which is conveyed to the dorsal regions of first-order octaval nuclei. This directional information is further enhanced by bilateral computations in the medulla and the auditory midbrain. We propose that similar direction-sensitive neurons were present in the early aquatic tetrapods and that selection for sound localization in air acted upon preexisting brain stem circuits like those in fishes. With movement onto land, the early tetrapods may have retained some sensitivity to particle motion, transduced by bone conduction, and later acquired new auditory papillae and tympanic hearing. Tympanic hearing arose in parallel within each of the major tetrapod lineages and would have led to increased sensitivity to a broader frequency range and to modification of the preexisting circuitry for sound source localization.

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Section: The Transition Onto Land: Early Tetrapodssupporting

confidence: 66%

Section: Directional Hearing In Osteichthyesmentioning

confidence: 99%

Evolution of Sound Source Localization Circuits in the Nonmammalian Vertebrate Brainstem

Walton

Christensen‐Dalsgaard

Carr

2017

Brain Behav Evol

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“…Michaela pointed out that the Fay shaker table represents a carefully controlled stimulus device simulating water particle motion. This work showed that peripheral coding mechanisms for spatial and spectral analysis of sound in sturgeon appear similar to those of teleost fish, such as the goldfish (Meyer et al, 2010;Meyer et al, 2012).…”

Section: Hearing In Vertebrates: a Psychophysical Databookmentioning

confidence: 69%

Comparative Hearing: Honoring Dick Fay

Yost¹,

Popper

2016

Proceedings of Meetings on Acoustics

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“…The sensory role of the inner ear endorgans can be vestibular and/or auditory, depending on the response frequencies and how the brain uses the information encoded in the VIIIth nerve afferents that project into the first order octaval nuclei in the brainstem (McCormick, 1999). The saccule has been described as the main auditory endorgan in teleost fishes (Brown et al, 2019;Coffin et al, 2012;Ladich and Schulz-Mirbach, 2016;Lu and DeSmidt, 2013;Smith et al, 2011), although the auditory sensitivity of utricle (Denton and Gray, 1979;Lu et al, 2004;Rogers and Sisneros, 2020) and lagena (Lu et al, 2003;Meyer et al, 2012;Sand, 1974;Vetter et al, 2019) has also been reported in a few species.…”

Section: Introductionmentioning

confidence: 99%

Noise-induced damage in the zebrafish inner ear endorgans: evidence for higher acoustic sensitivity of saccular and lagenar hair cells

Lau

Vasconcelos

2023

Preprint

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The three otolithic endorgans of the inner ear are known to be involved in sound detection in different teleost fishes, yet their relative roles for auditory-vestibular functions within the same species remain unclear. In zebrafish (Danio rerio), saccule and utricle are thought to play key functions in encoding auditory and vestibular information, respectively, but the biological function of lagena is not clear. We hypothesized that the saccule is the main auditory endorgan and lagena might serve an auditory function given its connectivity to the saccule and dominant vestibular function of the utricle in this species. We investigated the acoustic sensitivity of the three otolithic endorgans in adult zebrafish by comparing the impact of acoustic trauma (continuous white noise at 168 dB for 24 h) on their sensory epithelia. Noise treatment caused hair cell loss in both saccule and lagena, but not in the utricle. This effect was identified immediately after acoustic treatment and did not increase 24h post trauma. Furthermore, hair cell loss was accompanied by a reduction in presynaptic activity measured based on Ribeye b expression but mainly in the saccule, supporting its main contribution for noise-induced hearing loss. Our findings support the hypothesis that the saccule plays a major role in hearing and that lagena is also acoustically affected but with less sensitivity most likely extending the species hearing dynamic range.

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Coding of sound direction in the auditory periphery of the lake sturgeon,Acipenser fulvescens

Abstract: Meyer M, Popper AN, Fay RR. Coding of sound direction in the auditory periphery of the lake sturgeon, Acipenser fulvescens.

Cited by 16 publications

References 42 publications

Evolution of Sound Source Localization Circuits in the Nonmammalian Vertebrate Brainstem

Evolution of Sound Source Localization Circuits in the Nonmammalian Vertebrate Brainstem

Comparative Hearing: Honoring Dick Fay

Noise-induced damage in the zebrafish inner ear endorgans: evidence for higher acoustic sensitivity of saccular and lagenar hair cells

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