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Corrales Parada CD, Mayer U, Chagnaud BP. The Dorsal Part of the Anterior Tuberal Nucleus Responds to Auditory Stimulation in Zebrafish ( Danio rerio). eNeuro 2024; 11:ENEURO.0062-24.2024. [PMID: 38918052 PMCID: PMC11236576 DOI: 10.1523/eneuro.0062-24.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/27/2024] Open
Abstract
The zebrafish, a widely used model in neurobiology, relies on hearing in aquatic environments. Unfortunately, its auditory pathways have mainly been studied in larvae. In this study, we examined the involvement of the anterior tuberal nucleus (AT) in auditory processing in adult zebrafish. Our tract-tracing experiments revealed that the dorsal subdivision of AT is strongly bidirectionally connected to the central nucleus of the torus semicircularis (TSc), a major auditory nucleus in fishes. Immunohistochemical visualization of the ribosomal protein S6 (pS6) phosphorylation to map neural activity in response to auditory stimulation substantiated this finding: the dorsal but not the ventral part of AT responded strongly to auditory stimulation. A similar response to auditory stimulation was present in the TSc but not in the nucleus isthmi, a visual region, which we used as a control for testing if the pS6 activation was specific to the auditory stimulation. We also measured the time course of pS6 phosphorylation, which was previously unreported in teleost fish. After auditory stimulation, we found that pS6 phosphorylation peaked between 100 and 130 min and returned to baseline levels after 190 min. This information will be valuable for the design of future pS6 experiments. Our results suggest an anatomical and functional subdivision of AT, where only the dorsal part connects to the auditory network and processes auditory information.
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Affiliation(s)
| | - Uwe Mayer
- Center for Mind/Brain Sciences, University of Trento, Rovereto 38068 TN, Italy
| | - Boris P Chagnaud
- Institute for Biology, Karl-Franzens-University Graz, Graz 8010 ST, Austria
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2
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Lugli M. Toward a general model for the evolution of the auditory sensitivity under variable ambient noise conditionsa). THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:2236-2255. [PMID: 37819375 DOI: 10.1121/10.0021306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 09/21/2023] [Indexed: 10/13/2023]
Abstract
Ambient noise constrains the evolution of acoustic signals and hearing. An earlier fitness model showed that the trade-off between sound detection and recognition helps predict the best level of auditory sensitivity for acoustic communication in noise. Here, the early model is improved to investigate the effects of different noise masking conditions and signal-to-noise ratios (SNRs). It is revealed that low sensitivity is expected for acoustic communication over short distances in complex noisy environments provided missed sound recognition is costly. By contrast, high sensitivity is expected for acoustic communication over long distances in quieter habitats or when sounds are received with good SNRs under unfavorable noise conditions. High sensitivity is also expected in noisy environments characterized by one dominant source of noise with a fairly constant spectrum (running-water noise) or when sounds are processed using anti-masking strategies favoring the detection and recognition of sound embedded in noise. These predictions help explain unexpected findings that do not fit with the current view on the effects of environmental selection on signal and sensitivity. Model predictions are compared with those of models of signal detection in noisy conditions and results of empirical studies.
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Affiliation(s)
- Marco Lugli
- Department of Chemistry, Life Sciences and Environmental Sustainability-Unit of Behavioral Biology, University of Parma, Parma, Italy
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3
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Calvo R, Hofmann MH, Schluessel V. Brain areas activated during visual learning in the cichlid fish Pseudotropheus zebra. Brain Struct Funct 2023; 228:859-873. [PMID: 36920630 PMCID: PMC10147796 DOI: 10.1007/s00429-023-02627-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 03/05/2023] [Indexed: 03/16/2023]
Abstract
The neural correlates of most cognitive functions in fish are unknown. This project aimed to identify brain regions involved in visual learning in the cichlid fish Pseudotropheus zebra. The expression of the protein pS6 was measured in 19 brain areas and compared between groups of individuals subjected to four different behavioral contexts (control, avoidance, trained, and novelty groups). Control group individuals were sacrificed with minimal interactions. Fish in the avoidance group were chased with a net for an hour, after which they were sacrificed. Individuals in the trained group received daily training sessions to associate a visual object with a food reward. They were sacrificed the day they reached learning criterion. Fish in the novelty group were habituated to one set of visual stimuli, then faced a change in stimulus type (novelty stimulus) before they were sacrificed. Fish in the three treatment groups showed the largest activation of pS6 in the inferior lobes and the tectum opticum compared to the control group. The avoidance group showed additional activation in the preoptic area, several telencephalic regions, the torus semicircularis, and the reticular formation. The trained group that received a food reward, showed additional activation of the torus lateralis, a tertiary gustatory center. The only area that showed strong activation in all three treatment groups was the nucleus diffusus situated within the inferior lobe. The inferior lobe receives prominent visual input from the tectum via the nucleus glomerulosus but so far, nothing is known about the functional details of this pathway. Our study showed for the first time that the inferior lobes play an important role in visual learning and object recognition.
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Affiliation(s)
- R Calvo
- Institute of Zoology, Rheinische Friedrich-Wilhelms-Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany.
| | - M H Hofmann
- Institute of Zoology, Rheinische Friedrich-Wilhelms-Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany
| | - V Schluessel
- Institute of Zoology, Rheinische Friedrich-Wilhelms-Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany
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4
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Wang D, Pan X, Zhou Y, Wu Z, Ren K, Liu H, Huang C, Yu Y, He T, Zhang X, Yang L, Zhang H, Han MH, Liu C, Cao JL, Yang C. Lateral septum-lateral hypothalamus circuit dysfunction in comorbid pain and anxiety. Mol Psychiatry 2023; 28:1090-1100. [PMID: 36642737 PMCID: PMC10005966 DOI: 10.1038/s41380-022-01922-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 01/17/2023]
Abstract
Pain and anxiety comorbidities are a common health problem, but the neural mechanisms underlying comorbidity remain unclear. We propose that comorbidity implies that similar brain regions and neural circuits, with the lateral septum (LS) as a major candidate, process pain and anxiety. From results of behavioral and neurophysiological experiments combined with selective LS manipulation in mice, we find that LS GABAergic neurons were critical for both pain and anxiety. Selective activation of LS GABAergic neurons induced hyperalgesia and anxiety-like behaviors. In contrast, selective inhibition of LS GABAergic neurons reduced nocifensive withdrawal responses and anxiety-like behaviors. This was found in two mouse models, one for chronic inflammatory pain (induced by complete Freund's adjuvant) and one for anxiety (induced by chronic restraint stress). Additionally, using TetTag chemogenetics to functionally mark LS neurons, we found that activation of LS neurons by acute pain stimulation could induce anxiety-like behaviors and vice versa. Furthermore, we show that LS GABAergic projection to the lateral hypothalamus (LH) plays an important role in the regulation of pain and anxiety comorbidities. Our study revealed that LS GABAergic neurons, and especially the LSGABAergic-LH circuit, are a critical to the modulation of pain and anxiety comorbidities.
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Affiliation(s)
- Di Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Xiangyu Pan
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, 221000, China
| | - Yu Zhou
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, 221000, China
| | - Zifeng Wu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Kunpeng Ren
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, 221000, China
| | - Hanyu Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Chaoli Huang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yumei Yu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, 221000, China
| | - Teng He
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Xiao Zhang
- Department of Anesthesiology, The Affiliated Wuxi NO. 2 People's Hospital of Nanjing Medical University, Wuxi, 214000, China
| | - Ling Yang
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, China
| | - Hongxing Zhang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, 221000, China
| | - Ming-Hu Han
- Department of Mental Health and Public Health, Faculty of Life and Health Sciences, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518000, China
| | - Cunming Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Jun-Li Cao
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, 221000, China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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King T, Ray EJ, Tramontana B, Maruska K. Behavior and neural activation patterns of nonredundant visual and acoustic signaling during courtship in an African cichlid fish. J Exp Biol 2022; 225:276887. [PMID: 36082938 DOI: 10.1242/jeb.244548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/30/2022] [Indexed: 11/20/2022]
Abstract
Animals evolve mechanisms to send and receive communication signals through multiple sensory channels during crucial behavioral contexts like aggression and reproduction. This assures the transmission of important context-dependent signals that supply either the same (redundant) or different (nonredundant) information to the receiver. Despite the importance of multimodal communication, there are relatively few species in which information on sender signals and receiver responses are known. Further, little is known about where context-dependent unimodal and multimodal information is processed in the brain to produce adaptive behaviors. We used the African cichlid, Astatotilapia burtoni, to investigate how unimodal and multimodal signals are processed within the female brain in a reproductive context. During courtship, dominant males produce low frequency sounds in conjunction with visual displays (quivers) directed towards receptive gravid females. We compared affiliation behaviors and neural activation patterns in gravid females exposed to visual, acoustic, and visual-acoustic signals from courting dominant males. Females displayed reduced affiliation in auditory only conditions, but similar affiliation during visual and visual-acoustic conditions, demonstrating that visual-acoustic signaling from males is nonredundant but vision dominates. Using the neural activation marker cfos, we identified differential activation in specific socially-relevant brain nuclei between unimodal and multimodal conditions and distinct neural co-activation networks associated with each sensory context. Combined with our previous work on chemosensory signaling, we propose that A. burtoni represents a valuable vertebrate model for studying context-dependent behavioral and neural decision making associated with nonredundant multimodal communication.
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Affiliation(s)
- Teisha King
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Bldg., Baton Rouge, LA. 70803, USA
| | - Emily J Ray
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Bldg., Baton Rouge, LA. 70803, USA
| | - Brandon Tramontana
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Bldg., Baton Rouge, LA. 70803, USA
| | - Karen Maruska
- Department of Biological Sciences, Louisiana State University, 202 Life Sciences Bldg., Baton Rouge, LA. 70803, USA
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Ghahramani ZN, Perelmuter JT, Varughese J, Kyaw P, Palmer WC, Sisneros JA, Forlano PM. Activation of noradrenergic locus coeruleus and social behavior network nuclei varies with duration of male midshipman advertisement calls. Behav Brain Res 2022; 423:113745. [PMID: 35033611 DOI: 10.1016/j.bbr.2022.113745] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/28/2021] [Accepted: 01/11/2022] [Indexed: 11/17/2022]
Abstract
Vocal courtship is vital to the reproductive success of many vertebrates and is therefore a highly-motivated behavioral state. Catecholamines have been shown to play an essential role in the expression and maintenance of motivated vocal behavior, such as the coordination of vocal-motor output in songbirds. However, it is not well-understood if this relationship applies to anamniote vocal species. Using the plainfin midshipman fish model, we tested whether specific catecholaminergic (i.e., dopaminergic and noradrenergic) nuclei and nodes of the social behavior network (SBN) are differentially activated in vocally courting (humming) versus non-humming males. Herein, we demonstrate that tyrosine hydroxylase immunoreactive (TH-ir) neuron number in the noradrenergic locus coeruleus (LC) and induction of cFos (an immediate early gene product and proxy for neural activation) in the preoptic area differentiated humming from non-humming males. Furthermore, we found relationships between activation of the LC and SBN nuclei with the total amount of time that males spent humming, further reinforcing a role for these specific brain regions in the production of motivated reproductive-related vocalizations. Finally, we found that patterns of functional connectivity between catecholaminergic nuclei and nodes of the SBN differed between humming and non-humming males, supporting the notion that adaptive behaviors (such as the expression of advertisement hums) emerge from the interactions between various catecholaminergic nuclei and the SBN.
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Affiliation(s)
- Zachary N Ghahramani
- Department of Biological Sciences, University of Mary Washington, Fredericksburg, VA, USA; Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, USA; Doctoral Subprograms in Ecology, Evolutionary Biology and Behavior,.
| | - Jonathan T Perelmuter
- Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, USA; Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, USA; Neuroscience, and Behavioral and Cognitive Neuroscience, The Graduate Center, City University of New York, New York, NY, USA
| | - Joshua Varughese
- Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, USA
| | - Phoo Kyaw
- Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, USA
| | | | - Joseph A Sisneros
- Departments of Biology and Psychology,; University of Washington, Seattle, WA, USA; Virginia Bloedel Hearing Research Center, Seattle, WA, USA
| | - Paul M Forlano
- Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, USA; Doctoral Subprograms in Ecology, Evolutionary Biology and Behavior,; Neuroscience, and Behavioral and Cognitive Neuroscience, The Graduate Center, City University of New York, New York, NY, USA; Behavioral and Cognitive Neuroscience, The Graduate Center, City University of New York, New York, NY, USA.
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7
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GABAergic Neurons in the Dorsal-Intermediate Lateral Septum Regulate Sleep-Wakefulness and Anesthesia in Mice. Anesthesiology 2021; 135:463-481. [PMID: 34259824 DOI: 10.1097/aln.0000000000003868] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND The γ-aminobutyric acid-mediated (GABAergic) inhibitory system in the brain is critical for regulation of sleep-wake and general anesthesia. The lateral septum contains mainly GABAergic neurons, being cytoarchitectonically divided into the dorsal, intermediate, and ventral parts. This study hypothesized that GABAergic neurons of the lateral septum participate in the control of wakefulness and promote recovery from anesthesia. METHODS By employing fiber photometry, chemogenetic and optogenetic neuronal manipulations, anterograde tracing, in vivo electrophysiology, and electroencephalogram/electromyography recordings in adult male mice, the authors measured the role of lateral septum GABAergic neurons to the control of sleep-wake transition and anesthesia emergence and the corresponding neuron circuits in arousal and emergence control. RESULTS The GABAergic neurons of the lateral septum exhibited high activities during the awake state by in vivo fiber photometry recordings (awake vs. non-rapid eye movement sleep: 3.3 ± 1.4% vs. -1.3 ± 1.2%, P < 0.001, n = 7 mice/group; awake vs. anesthesia: 2.6 ± 1.2% vs. -1.3 ± 0.8%, P < 0.001, n = 7 mice/group). Using chemogenetic stimulation of lateral septum GABAergic neurons resulted in a 100.5% increase in wakefulness and a 51.2% reduction in non-rapid eye movement sleep. Optogenetic activation of these GABAergic neurons promoted wakefulness from sleep (median [25th, 75th percentiles]: 153.0 [115.9, 179.7] s to 4.0 [3.4, 4.6] s, P = 0.009, n = 5 mice/group) and accelerated emergence from isoflurane anesthesia (514.4 ± 122.2 s vs. 226.5 ± 53.3 s, P < 0.001, n = 8 mice/group). Furthermore, the authors demonstrated that the lateral septum GABAergic neurons send 70.7% (228 of 323 cells) of monosynaptic projections to the ventral tegmental area GABAergic neurons, preferentially inhibiting their activities and thus regulating wakefulness and isoflurane anesthesia depth. CONCLUSIONS The results uncover a fundamental role of the lateral septum GABAergic neurons and their circuit in maintaining awake state and promoting general anesthesia emergence time. EDITOR’S PERSPECTIVE
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Davis SED, Sansone JM, Hurley LM. Postweaning Isolation Alters the Responses of Auditory Neurons to Serotonergic Modulation. Integr Comp Biol 2021; 61:302-315. [PMID: 33974061 DOI: 10.1093/icb/icab051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Juvenile social experience, such as social isolation, has profound effects on communicative behavior, including signal production and reception. In the current study, we explored responsiveness to the neuromodulator serotonin as a potential mechanistic link between early life social isolation and auditory processing. The serotonergic system is sensitive to social isolation in many brain regions including the inferior colliculus (IC), an auditory midbrain nucleus. We investigated the effects of social experience on serotonergic responsiveness by measuring cFos, an immediate early gene product, in the IC of female mice. Serotonin was manipulated pharmacologically by administering fenfluramine, pCPA, or saline to mice that had undergone an extreme dichotomy in social experience after weaning: being housed in social groups versus individually. These mice were exposed to a 60-min recording of vocalizations from an opposite-sex interaction and perfused. Using immunohistochemistry, we measured the density of cFos-positive (cFos+) nuclei in the major subdivisions of the IC. Housing condition, drug treatment, and IC subregion all had a significant effect on cFos+ density. The central IC showed the highest density of cFos+ cells and also the most pronounced effects of housing condition and drug treatment. In the central IC, cFos+ density was higher following fenfluramine treatment than saline, and lower following pCPA treatment than fenfluramine. Individually housed mice showed a higher cFos+ density than socially housed mice in both of the pharmacological treatment groups, but not in the saline group. Drug treatment but not housing condition had strong effects on the behaviors of grooming, digging, rearing, and movement. Once the effects of drug condition were controlled, there were no across-individual correlations between cFos+ densities and behaviors. These findings suggest that the responses of auditory neurons to neuromodulation by serotonin are influenced by early life experience.
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Affiliation(s)
- Sarah E D Davis
- Department of Biology, Indiana University, 1001 East Third Street, Bloomington, IN 47401, USA
| | - Jack M Sansone
- Department of Biology, Indiana University, 1001 East Third Street, Bloomington, IN 47401, USA
| | - Laura M Hurley
- Department of Biology, Indiana University, 1001 East Third Street, Bloomington, IN 47401, USA.,Center for the Integrative Study of Animal Behavior, 409 N Park Ave, Bloomington, IN 47408, USA
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Hawkins AD, Popper AN. Sound detection by Atlantic cod: An overview. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2020; 148:3027. [PMID: 33261395 DOI: 10.1121/10.0002363] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/08/2020] [Indexed: 06/12/2023]
Abstract
The Atlantic cod (Gadus morhua) is among the commercially most important fish species in the world. Since sound plays such an important role in the lives of Atlantic cod and its related species, understanding of their bioacoustics is of great importance. Moreover, since cod are amenable to studies of hearing, especially in open bodies of water, they have the potential to become a "model species" for investigations of fish hearing. To serve as the basis for future studies, and to bring together what is now known about cod hearing, this paper reviews the literature to date. While there is some discussion of other species in the paper, the focus is upon what is already known about cod hearing, and what now needs to be known. An additional focus is on what knowledge of cod hearing tells about hearing in fishes in general.
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Affiliation(s)
- Anthony D Hawkins
- The Aquatic Noise Trust, Kincraig, Blairs, Aberdeen, AB12 5YT, United Kingdom
| | - Arthur N Popper
- Department of Biology, University of Maryland, College Park, Maryland 20742, USA
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Timothy M, Forlano PM. Serotonin distribution in the brain of the plainfin midshipman: Substrates for vocal-acoustic modulation and a reevaluation of the serotonergic system in teleost fishes. J Comp Neurol 2020; 528:3451-3478. [PMID: 32361985 DOI: 10.1002/cne.24938] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 12/18/2022]
Abstract
Serotonin (5-HT) is a modulator of neural circuitry underlying motor patterning, homeostatic control, and social behavior. While previous studies have described 5-HT distribution in various teleosts, serotonergic raphe subgroups in fish are not well defined and therefore remain problematic for cross-species comparisons. Here we used the plainfin midshipman fish, Porichthys notatus, a well-studied model for investigating the neural and hormonal mechanisms of vertebrate vocal-acoustic communication, to redefine raphe subgroups based on both stringent neuroanatomical landmarks as well as quantitative cell measurements. In addition, we comprehensively characterized 5-HT-immunoreactive (-ir) innervation throughout the brain, including well-delineated vocal and auditory nuclei. We report neuroanatomical heterogeneity in populations of the serotonergic raphe nuclei of the brainstem reticular formation, with three discrete subregions in the superior raphe, an intermediate 5-HT-ir cell cluster, and an extensive inferior raphe population. 5-HT-ir neurons were also observed within the vocal motor nucleus (VMN), forming putative contacts on those cells. In addition, three major 5-HT-ir cell groups were identified in the hypothalamus and one group in the pretectum. Significant 5-HT-ir innervation was found in components of the vocal pattern generator and cranial motor nuclei. All vocal midbrain nuclei showed considerable 5-HT-ir innervation, as did thalamic and hindbrain auditory and lateral line areas and vocal-acoustic integration sites in the preoptic area and ventral telencephalon. This comprehensive atlas offers new insights into the organization of 5-HT nuclei in teleosts and provides neuroanatomical evidence for serotonin as a modulator of vocal-acoustic circuitry and behavior in midshipman fish, consistent with findings in vocal tetrapods.
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Affiliation(s)
- Miky Timothy
- Department of Biology, Brooklyn College, City University of New York, 2900 Bedford Avenue, Brooklyn, New York, 11210, USA
| | - Paul M Forlano
- Department of Biology, Brooklyn College, City University of New York, 2900 Bedford Avenue, Brooklyn, New York, 11210, USA.,Biology Subprogram in Ecology, Evolution, and Behavior, The Graduate Center, City University of New York, 365 5th Avenue, New York, New York, 10016, USA.,Biology Subprogram in Neuroscience, The Graduate Center, City University of New York, 365 5th Avenue, New York, New York, 10016, USA.,Psychology Subprogram in Behavioral and Cognitive Neuroscience, The Graduate Center, City University of New York, 365 5th Avenue, New York, New York, 10016, USA.,Aquatic Research and Environmental Assessment Center, Brooklyn College, Brooklyn, New York, USA
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Privat M, Romano SA, Pietri T, Jouary A, Boulanger-Weill J, Elbaz N, Duchemin A, Soares D, Sumbre G. Sensorimotor Transformations in the Zebrafish Auditory System. Curr Biol 2019; 29:4010-4023.e4. [PMID: 31708392 PMCID: PMC6892253 DOI: 10.1016/j.cub.2019.10.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/27/2019] [Accepted: 10/15/2019] [Indexed: 11/25/2022]
Abstract
Organisms use their sensory systems to acquire information from their environment and integrate this information to produce relevant behaviors. Nevertheless, how sensory information is converted into adequate motor patterns in the brain remains an open question. Here, we addressed this question using two-photon and light-sheet calcium imaging in intact, behaving zebrafish larvae. We monitored neural activity elicited by auditory stimuli while simultaneously recording tail movements. We observed a spatial organization of neural activity according to four different response profiles (frequency tuning curves), suggesting a low-dimensional representation of frequency information, maintained throughout the development of the larvae. Low frequencies (150-450 Hz) were locally processed in the hindbrain and elicited motor behaviors. In contrast, higher frequencies (900-1,000 Hz) rarely induced motor behaviors and were also represented in the midbrain. Finally, we found that the sensorimotor transformations in the zebrafish auditory system are a continuous and gradual process that involves the temporal integration of the sensory response in order to generate a motor behavior.
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Affiliation(s)
- Martin Privat
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Sebastián A Romano
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France; Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - CONICET - Partner Institute of the Max Planck Society, Godoy Cruz 2390, C1425FQD Buenos Aires, Argentina
| | - Thomas Pietri
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Adrien Jouary
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France; Champalimaud Research, Champalimaud Centre for the Unknown, Lisbon 1400-038, Portugal
| | - Jonathan Boulanger-Weill
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France; Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA, USA
| | - Nicolas Elbaz
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Auriane Duchemin
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Daphne Soares
- Department of Biological Sciences, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Germán Sumbre
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France.
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Timothy M, Forlano PM. A versatile macro-based neurohistological image analysis suite for ImageJ focused on automated and standardized user interaction and reproducible data output. J Neurosci Methods 2019; 324:108286. [PMID: 31063801 DOI: 10.1016/j.jneumeth.2019.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 04/16/2019] [Accepted: 04/18/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND The development and increasing adoption of advanced microscopy imaging technologies, including high resolution, multi-dimensional digital photography and multiple fluorescence channel acquisition, as well as the availability of inexpensive terabyte-capacity storage, have enabled research laboratories to pursue neurohistological imaging experiments involving multiple neurochemical probes and experimental conditions covering a variety of brain regions. Analyzing and processing the resulting datasets, composed of hundreds of micrographs, presents challenges in ensuring accuracy and reproducibility under demanding time and training constraints. NEW METHOD The 'Custom Macros' plugin suite for ImageJ automates and systematizes user interaction in neurohistological image analysis tasks, including region selection and thresholding, point/object counts, area measurement, batch filter processing, and data review. Written in the accessible ImageJ macro language, the plugin implements a user login-based data storage framework and facilitates inter-laboratory collaboration over cloud file server clients. RESULTS A macro-based interface approach integrates dozens of novel operations, software interactions, algorithm calls, and background tasks into individual shortcut commands. Every completed procedure generates image, region, and calibrated measurement records that are saved in a standardized folder structure. COMPARISONS WITH EXISTING METHODS Plugin installation adds startup access to a persistent interface layer of extensive and streamlined functionality that is generalizable to a variety of neurohistological contexts, thus providing an efficient and reliable alternative to the use of analysis software in an unstructured, provisional manner that necessitates repeated menu and plugin interaction. CONCLUSIONS Our free/open-source software provides researchers a straightforward solution to addressing daunting usability and data oversight issues, ultimately making efficient, accessible, and reproducible image analysis methodology attainable for many laboratories.
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Affiliation(s)
- Miky Timothy
- Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, United States.
| | - Paul M Forlano
- Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, United States; Doctoral Subprogram in Ecology, Evolutionary Biology and Behavior, The Graduate Center, City University of New York, New York, NY, United States; Doctoral Subprogram in Neuroscience, The Graduate Center, City University of New York, New York, NY, United States; Doctoral Subprogram in Behavioral and Cognitive Neuroscience, The Graduate Center, City University of New York, New York, NY, United States; Aquatic Research and Environmental Assessment Center (AREAC), Brooklyn College, Brooklyn, NY, United States
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Ghahramani ZN, Timothy M, Varughese J, Sisneros JA, Forlano PM. Dopaminergic neurons are preferentially responsive to advertisement calls and co-active with social behavior network nuclei in sneaker male midshipman fish. Brain Res 2018; 1701:177-188. [PMID: 30217439 DOI: 10.1016/j.brainres.2018.09.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/01/2018] [Accepted: 09/10/2018] [Indexed: 12/29/2022]
Abstract
Vocal species use acoustic signals to facilitate diverse behaviors such as mate attraction and territorial defense. However, little is known regarding the neural substrates that interpret such divergent conspecific signals. Using the plainfin midshipman fish model, we tested whether specific catecholaminergic (i.e., dopaminergic and noradrenergic) nuclei and nodes of the social behavior network (SBN) are differentially responsive following exposure to playbacks of divergent social signals in sneaker males. We chose sneaker (type II) males since they attempt to steal fertilizations from territorial type I males who use an advertisement call (hum) to attract females yet are also subjected to vocal agonistic behavior (grunts) by type I males. We demonstrate that induction of cFos (an immediate early gene product and proxy for neural activation) in two forebrain dopaminergic nuclei is greater in sneaker males exposed to hums but not grunts compared to ambient noise, suggesting hums preferentially activate these nuclei, further asserting dopamine as an important regulator of social-acoustic behaviors. Moreover, acoustic exposure to social signals with divergent salience engendered contrasting shifts in functional connectivity between dopaminergic nuclei and nodes of the SBN, supporting the idea that interactions between these two circuits may underlie adaptive decision-making related to intraspecific male competition.
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Affiliation(s)
- Zachary N Ghahramani
- Department of Biology, Brooklyn College, Brooklyn, NY, United States; Doctoral Subprogram in Ecology, Evolutionary Biology and Behavior, The Graduate Center, City University of New York, New York, NY, United States.
| | - Miky Timothy
- Department of Biology, Brooklyn College, Brooklyn, NY, United States
| | - Joshua Varughese
- Department of Biology, Brooklyn College, Brooklyn, NY, United States
| | - Joseph A Sisneros
- Department of Biology, University of Washington, Seattle, WA, United States; Department of Psychology, University of Washington, Seattle, WA, United States; Virginia Bloedel Hearing Research Center, Seattle, WA, United States
| | - Paul M Forlano
- Department of Biology, Brooklyn College, Brooklyn, NY, United States; Aquatic Research and Environmental Assessment Center (AREAC), Brooklyn College, Brooklyn, NY, United States; Doctoral Subprogram in Ecology, Evolutionary Biology and Behavior, The Graduate Center, City University of New York, New York, NY, United States; Doctoral Subprogram in Neuroscience, The Graduate Center, City University of New York, New York, NY, United States; Doctoral Subprogram in Behavioral and Cognitive Neuroscience, The Graduate Center, City University of New York, New York, NY, United States
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