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McCormick CA. Anatomical adventures in the fish auditory medullaa). THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:3696-3708. [PMID: 38171015 DOI: 10.1121/10.0022510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 11/04/2023] [Indexed: 01/05/2024]
Abstract
This paper provides an overview of my work on the central auditory system of fish. It focuses on my comparative analyses of a nucleus that receives input from the inner ear, the descending nucleus, and more specifically on that part of the descending nucleus supplied by the otolith end organs, the dorsal descending nucleus. I begin by summarizing my initial work on the bowfin, Amia calva, and go on to explain the importance of taking a comparative approach to understanding ancestral and specialized anatomical and putative functional characteristics of the dorsal descending nucleus in modern bony fishes, the teleosts.
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Fritzsch B, Elliott KL. Fish hearing revealed: Do we understand hearing in critical fishes and marine tetrapods. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:3019-3026. [PMID: 37955566 PMCID: PMC10769566 DOI: 10.1121/10.0022355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 11/14/2023]
Abstract
Hearing evolved in lampreys with a frequency range of 50-200 Hz. This hearing range is comparable to that of elasmobranchs, most non-teleosts, and lungfish. Elasmobranchs most likely use the saccule and the papilla neglecta (PN) for hearing. In non-teleosts and teleosts, lungfish, and certain tetrapods the saccule is the likely sensor for sound reception while the lagena and the PN are important for gravistatic sensing. Coelacanth and most tetrapods have a basilar papilla (BP) for hearing. In coelacanth and tetrapods, the hair cells of the BP are in contact with a basilar and a tectorial membrane. These membranes transmit mechanical vibrations. A cochlear aqueduct (CA) provides a connection between the cerebrospinal fluid that has a sodium rich space in coelacanth and tetrapods while the potassium rich endolymph is known in vertebrates. A unique feature is known in basic sarcopterygians, the intracranial joint, that never developed in actinopterygians and has been lost in lungfish and tetrapods. The BP in coelacanths is thought to generate pressure with the intracranial joint that will be transmitted to the CA. Lungs or a swim bladder are not forming in Chondrichthyes, structures that have a major impact on hearing in teleosts and tetrapods.
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Affiliation(s)
- Bernd Fritzsch
- Department of Biology & Department of Otolaryngology, The University of Iowa, Iowa City, Iowa 52242, USA
| | - Karen L Elliott
- Department of Biology & Department of Otolaryngology, The University of Iowa, Iowa City, Iowa 52242, USA
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Popper AN, Calfee RD. Sound and sturgeon: Bioacoustics and anthropogenic sounda). THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:2021-2035. [PMID: 37782124 DOI: 10.1121/10.0021166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 09/11/2023] [Indexed: 10/03/2023]
Abstract
Sturgeons are basal bony fishes, most species of which are considered threatened and/or endangered. Like all fishes, sturgeons use hearing to learn about their environment and perhaps communicate with conspecifics, as in mating. Thus, anything that impacts the ability of sturgeon to hear biologically important sounds could impact fitness and survival of individuals and populations. There is growing concern that the sounds produced by human activities (anthropogenic sound), such as from shipping, commercial barge navigation on rivers, offshore windfarms, and oil and gas exploration, could impact hearing by aquatic organisms. Thus, it is critical to understand how sturgeon hear, what they hear, and how they use sound. Such data are needed to set regulatory criteria for anthropogenic sound to protect these animals. However, very little is known about sturgeon behavioral responses to sound and their use of sound. To help understand the issues related to sturgeon and anthropogenic sound, this review first examines what is known about sturgeon bioacoustics. It then considers the potential effects of anthropogenic sound on sturgeon and, finally identifies areas of research that could substantially improve knowledge of sturgeon bioacoustics and effects of anthropogenic sound. Filling these gaps will help regulators establish appropriate protection for sturgeon.
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Affiliation(s)
- Arthur N Popper
- Department of Biology, University of Maryland, College Park, Maryland 20742, USA
| | - Robin D Calfee
- United States Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA
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Fay RR, Coombs S, Popper AN. The career and research contributions of Richard R. Fay. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 153:761. [PMID: 36859129 DOI: 10.1121/10.0017098] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
For over 50 years, Richard R. (Dick) Fay made major contributions to our understanding of vertebrate hearing. Much of Dick's work focused on hearing in fishes and, particularly, goldfish, as well as a few other species, in a substantial body of work on sound localization mechanisms. However, Dick's focus was always on using his studies to try and understand bigger issues of vertebrate hearing and its evolution. This article is slightly adapted from an article that Dick wrote in 2010 on the closure of the Parmly Hearing Institute at Loyola University Chicago. Except for small modifications and minor updates, the words and ideas herein are those of Dick.
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Affiliation(s)
- Richard R Fay
- Department of Psychology, Loyola University Chicago, Chicago, Illinois 60660, USA
| | - Sheryl Coombs
- Department of Biology, Bowling Green State University, Bowling Green, Ohio 43403, USA
| | - Arthur N Popper
- Department of Biology, University of Maryland, College Park, Maryland 20742, USA
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Vetter BJ, Sisneros JA. Swim bladder enhances lagenar sensitivity to sound pressure and higher frequencies in female plainfin midshipman ( Porichthys notatus). J Exp Biol 2020; 223:jeb225177. [PMID: 32587068 PMCID: PMC7406320 DOI: 10.1242/jeb.225177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/16/2020] [Indexed: 11/20/2022]
Abstract
The plainfin midshipman fish (Porichthys notatus) is an established model for investigating acoustic communication because the reproductive success of this species is dependent on the production and reception of social acoustic signals. Previous work showed that female midshipman have swim bladders with rostral horn-like extensions that project close to the saccule and lagena, while nesting (type I) males lack such rostral swim bladder extensions. The relative close proximity of the swim bladder to the lagena should increase auditory sensitivity to sound pressure and higher frequencies. Here, we test the hypothesis that the swim bladder of female midshipman enhances lagenar sensitivity to sound pressure and higher frequencies. Evoked potentials were recorded from auditory hair cell receptors in the lagena in reproductive females with intact (control condition) and removed (treated condition) swim bladders while pure tone stimuli (85-1005 Hz) were presented by an underwater speaker. Females with intact swim bladders had auditory thresholds 3-6 dB lower than females without swim bladders over a range of frequencies from 85 to 405 Hz. At frequencies from 545 to 1005 Hz, only females with intact swim bladders had measurable auditory thresholds (150-153 dB re. 1 µPa). The higher percentage of evoked lagenar potentials recorded in control females at frequencies >505 Hz indicates that the swim bladder extends the bandwidth of detectable frequencies. These findings reveal that the swim bladders in female midshipman can enhance lagenar sensitivity to sound pressure and higher frequencies, which may be important for the detection of behaviorally relevant social signals.
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Affiliation(s)
- Brooke J Vetter
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
| | - Joseph A Sisneros
- Department of Psychology, University of Washington, Seattle, WA 98195-1525, USA
- Department of Biology, University of Washington, Seattle, WA 98195-1800, USA
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA 98195-7923, USA
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Early functional alterations in membrane properties and neuronal degeneration are hallmarks of progressive hearing loss in NOD mice. Sci Rep 2019; 9:12128. [PMID: 31431657 PMCID: PMC6702171 DOI: 10.1038/s41598-019-48376-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 08/05/2019] [Indexed: 11/24/2022] Open
Abstract
Presbycusis or age-related hearing loss (ARHL) is the most common sensory deficit in the human population. A substantial component of the etiology stems from pathological changes in sensory and non-sensory cells in the cochlea. Using a non-obese diabetic (NOD) mouse model, we have characterized changes in both hair cells and spiral ganglion neurons that may be relevant for early signs of age-related hearing loss (ARHL). We demonstrate that hair cell loss is preceded by, or in parallel with altered primary auditory neuron functions, and latent neurite retraction at the hair cell-auditory neuron synapse. The results were observed first in afferent inner hair cell synapse of type I neurites, followed by type II neuronal cell-body degeneration. Reduced membrane excitability and loss of postsynaptic densities were some of the inaugural events before any outward manifestation of hair bundle disarray and hair cell loss. We have identified profound alterations in type I neuronal membrane properties, including a reduction in membrane input resistance, prolonged action potential latency, and a decrease in membrane excitability. The resting membrane potential of aging type I neurons in the NOD, ARHL model, was significantly hyperpolarized, and analyses of the underlying membrane conductance showed a significant increase in K+ currents. We propose that attempts to alleviate some forms of ARHL should include early targeted primary latent neural degeneration for effective positive outcomes.
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Vetter BJ, Seeley LH, Sisneros JA. Lagenar potentials of the vocal plainfin midshipman fish, Porichthys notatus. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2019; 205:163-175. [PMID: 30635725 DOI: 10.1007/s00359-018-01314-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/19/2018] [Accepted: 12/26/2018] [Indexed: 11/29/2022]
Abstract
The plainfin midshipman fish (Porichthys notatus) is a species of marine teleost that produces acoustic signals that are important for mediating social behavior. The auditory sensitivity of the saccule is well established in this species, but the sensitivity and function of the midshipman's putative auditory lagena are unknown. Here, we characterize the auditory-evoked potentials from hair cells in the lagena of reproductive type I males to determine the frequency response and auditory sensitivity of the lagena to behaviorally relevant acoustic stimuli. Lagenar potentials were recorded from the caudal and medial region of the lagena, while acoustic stimuli were presented by an underwater speaker. Our results indicate that the midshipman lagena has a similar low-frequency sensitivity to that of the midshipman saccule based on sound pressure and acceleration (re: 1 µPa and 1 ms-2, respectively), but the thresholds of the lagena were higher across all frequencies tested. The relatively high auditory thresholds of the lagena may be important for encoding high levels of behaviorally relevant acoustic stimuli when close to a sound source.
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Affiliation(s)
- Brooke J Vetter
- Department of Psychology, University of Washington, Seattle, WA, 98195-1525, USA.
| | - Lane H Seeley
- Department of Physics, Seattle Pacific University, Seattle, WA, 98199-1997, USA
| | - Joseph A Sisneros
- Department of Psychology, University of Washington, Seattle, WA, 98195-1525, USA.,Department of Biology, University of Washington, Seattle, WA, 98195-1800, USA.,Virginia Merrill Bloedel Hearing Research Center, University of Washington, Seattle, WA, 98195-7923, USA
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Walton PL, Christensen-Dalsgaard J, Carr C. Evolution of Sound Source Localization Circuits in the Nonmammalian Vertebrate Brainstem. BRAIN, BEHAVIOR AND EVOLUTION 2017; 90:131-153. [PMID: 28988244 PMCID: PMC5691234 DOI: 10.1159/000476028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 04/25/2017] [Indexed: 12/31/2022]
Abstract
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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Affiliation(s)
| | | | - Catherine Carr
- Department of Biology, University of Maryland, College Park MD, 20742-4415, USA
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Martin SB, Popper AN. Short- and long-term monitoring of underwater sound levels in the Hudson River (New York, USA). THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2016; 139:1886. [PMID: 27106335 DOI: 10.1121/1.4944876] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
There is a growing body of research on natural and man-made sounds that create aquatic soundscapes. Less is known about the soundscapes of shallow waters, such as in harbors, rivers, and lakes. Knowledge of soundscapes is needed as a baseline against which to determine the changes in noise levels resulting from human activities. To provide baseline data for the Hudson River at the site of the Tappan Zee Bridge, 12 acoustic data loggers were deployed for a 24-h period at ranges of 0-3000 m from the bridge, and four of the data loggers were re-deployed for three months of continuous recording. Results demonstrate that this region of the river is relatively quiet compared to open ocean conditions and other large river systems. Moreover, the soundscape had temporal and spatial diversity. The temporal patterns of underwater noise from the bridge change with the cadence of human activity. Bridge noise (e.g., road traffic) was only detected within 300 m; farther from the bridge, boating activity increased sound levels during the day, and especially on the weekend. Results also suggest that recording near the river bottom produced lower pseudo-noise levels than previous studies that recorded in the river water column.
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Affiliation(s)
- S Bruce Martin
- JASCO Applied Sciences, 32 Troop Avenue, Suite 202, Dartmouth, Nova Scotia B3B 1Z1, Canada
| | - Arthur N Popper
- Department of Biology, University of Maryland, College Park, Maryland 20742, USA
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Fishy Hearing: A Short Biography of Arthur N. Popper, PhD. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 877:3-11. [PMID: 26515307 DOI: 10.1007/978-3-319-21059-9_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Biologist Dr. Arthur Popper's career spans decades, from his early work on comparative inner ear morphology in fishes to his recent interest in how underwater noise impacts aquatic vertebrates. Along the way Dr. Popper's research subjects span at least 19 vertebrate taxa, from lamprey to lungfish to humans, and he's had a profound influence in the field of fish bioacoustics. This brief biography describes some of Dr. Popper's many contributions to fish hearing research and highlights both some of his major discoveries and some of the biological mysteries he has yet to solve.
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Sisneros JA, Rogers PH. Directional Hearing and Sound Source Localization in Fishes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 877:121-55. [DOI: 10.1007/978-3-319-21059-9_7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Comparison of Electrophysiological Auditory Measures in Fishes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 877:227-54. [DOI: 10.1007/978-3-319-21059-9_11] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Curthoys IS, Grant JW. How does high-frequency sound or vibration activate vestibular receptors? Exp Brain Res 2015; 233:691-9. [PMID: 25567092 DOI: 10.1007/s00221-014-4192-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 12/22/2014] [Indexed: 01/08/2023]
Abstract
The mechanism by which vestibular neural phase locking occurs and how it relates to classical otolith mechanics is unclear. Here, we put forward the hypothesis that sound and vibration both cause fluid pressure waves in the inner ear and that it is these pressure waves which displace the hair bundles on vestibular receptor hair cells and result in activation of type I receptor hair cells and phase locking of the action potentials in the irregular vestibular afferents, which synapse on type I receptors. This idea has been suggested since the early neural recordings and recent results give it greater credibility.
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Affiliation(s)
- I S Curthoys
- Vestibular Research Laboratory, School of Psychology A 18, University of Sydney, Sydney, NSW, 2006, Australia,
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Bhandiwad AA, Zeddies DG, Raible DW, Rubel EW, Sisneros JA. Auditory sensitivity of larval zebrafish (Danio rerio) measured using a behavioral prepulse inhibition assay. ACTA ACUST UNITED AC 2014; 216:3504-13. [PMID: 23966590 DOI: 10.1242/jeb.087635] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Zebrafish (Danio rerio) have become a valuable model for investigating the molecular genetics and development of the inner ear in vertebrates. In this study, we employed a prepulse inhibition (PPI) paradigm to assess hearing in larval wild-type (AB) zebrafish during early development at 5-6 days post-fertilization (d.p.f.). We measured the PPI of the acoustic startle response in zebrafish using a 1-dimensional shaker that simulated the particle motion component of sound along the fish's dorsoventral axis. The thresholds to startle-inducing stimuli were determined in 5-6 d.p.f. zebrafish, and their hearing sensitivity was then characterized using the thresholds of prepulse tone stimuli (90-1200 Hz) that inhibited the acoustic startle response to a reliable startle stimulus (820 Hz at 20 dB re. 1 m s(-2)). Hearing thresholds were defined as the minimum prepulse tone level required to significantly reduce the startle response probability compared with the baseline (no-prepulse) condition. Larval zebrafish showed greatest auditory sensitivity from 90 to 310 Hz with corresponding mean thresholds of -19 to -10 dB re. 1 m s(-2), respectively. Hearing thresholds of prepulse tones were considerably lower than previously predicted by startle response assays. The PPI assay was also used to investigate the relative contribution of the lateral line to the detection of acoustic stimuli. After aminoglycoside-induced neuromast hair-cell ablation, we found no difference in PPI thresholds between treated and control fish. We propose that this PPI assay can be used to screen for novel zebrafish hearing mutants and to investigate the ontogeny of hearing in zebrafish and other fishes.
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Affiliation(s)
- Ashwin A Bhandiwad
- Department of Psychology, University of Washington, Seattle, WA 98195, USA.
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Meyer M, Popper AN, Fay RR. Coding of sound direction in the auditory periphery of the lake sturgeon, Acipenser fulvescens. J Neurophysiol 2011; 107:658-65. [PMID: 22031776 DOI: 10.1152/jn.00390.2011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The lake sturgeon, Acipenser fulvescens, belongs to one of the few extant nonteleost ray-finned fishes and diverged from the main vertebrate lineage about 250 million years ago. The aim of this study was to use this species to explore the peripheral neural coding strategies for sound direction and compare these results to modern bony fishes (teleosts). Extracellular recordings were made from afferent neurons innervating the saccule and lagena of the inner ear while the fish was stimulated using a shaker system. Afferents were highly directional and strongly phase locked to the stimulus. Directional response profiles resembled cosine functions, and directional preferences occurred at a wide range of stimulus intensities (spanning at least 60 dB re 1 nm displacement). Seventy-six percent of afferents were directionally selective for stimuli in the vertical plane near 90° (up down) and did not respond to horizontal stimulation. Sixty-two percent of afferents responsive to horizontal stimulation had their best axis in azimuths near 0° (front back). These findings suggest that in the lake sturgeon, in contrast to teleosts, the saccule and lagena may convey more limited information about the direction of a sound source, raising the possibility that this species uses a different mechanism for localizing sound. For azimuth, a mechanism could involve the utricle or perhaps the computation of arrival time differences. For elevation, behavioral strategies such as directing the head to maximize input to the area of best sensitivity may be used. Alternatively, the lake sturgeon may have a more limited ability for sound source localization compared with teleosts.
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Affiliation(s)
- Michaela Meyer
- Department of Biology and Center for Comparative and Evolutionary Biology of Hearing, University of Maryland, College Park, Maryland, USA.
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