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Lefeuvre M, Rutkowska J. Zebra finch song parameters are affected by the breeding status of the male, but not temperature variability. Physiol Behav 2024; 281:114581. [PMID: 38734358 DOI: 10.1016/j.physbeh.2024.114581] [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: 03/11/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Bird song is a crucial feature for mate choice and reproduction. Song can potentially communicate information related to the quality of the mate, through song complexity, structure or finer changes in syllable characteristics. It has been shown in zebra finches that those characteristics can be affected by various factors including motivation, hormone levels or extreme temperature. However, although the literature on zebra finch song is substantial, some factors have been neglected. In this paper, we recorded male zebra finches in two breeding contexts (before and after pairing) and in two ambient temperature conditions (stable and variable) to see how those factors could influence song production. We found strong differences between the two breeding contexts: compared to their song before pairing, males that were paired had lower song rate, syllable consistency, frequency and entropy, while surprisingly the amplitude of their syllables increased. Temperature variability had an impact on the extent of these differences, but did not directly affect the song parameters that we measured. Our results describe for the first time how breeding status and temperature variability can affect zebra finch song, and give some new insights into the subtleties of the acoustic communication of this model species.
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Affiliation(s)
- Maëlle Lefeuvre
- Jagiellonian University, Doctoral School of Exact and Natural Sciences, Cracow, Poland; Jagiellonian University, Faculty of Biology, Institute of Environmental Sciences, Cracow, Poland.
| | - Joanna Rutkowska
- Jagiellonian University, Faculty of Biology, Institute of Environmental Sciences, Cracow, Poland
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2
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Kraft FLH, Crino OL, Adeniran-Obey SO, Moraney RA, Clayton DF, George JM, Buchanan KL. Parental developmental experience affects vocal learning in offspring. Sci Rep 2024; 14:13787. [PMID: 38877207 PMCID: PMC11178867 DOI: 10.1038/s41598-024-64520-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 06/10/2024] [Indexed: 06/16/2024] Open
Abstract
Cultural and genetic inheritance combine to enable rapid changes in trait expression, but their relative importance in determining trait expression across generations is not clear. Birdsong is a socially learned cognitive trait that is subject to both cultural and genetic inheritance, as well as being affected by early developmental conditions. We sought to test whether early-life conditions in one generation can affect song acquisition in the next generation. We exposed one generation (F1) of nestlings to elevated corticosterone (CORT) levels, allowed them to breed freely as adults, and quantified their son's (F2) ability to copy the song of their social father. We also quantified the neurogenetic response to song playback through immediate early gene (IEG) expression in the auditory forebrain. F2 males with only one corticosterone-treated parent copied their social father's song less accurately than males with two control parents. Expression of ARC in caudomedial nidopallium (NCM) correlated with father-son song similarity, and patterns of expression levels of several IEGs in caudomedial mesopallium (CMM) in response to father song playback differed between control F2 sons and those with a CORT-treated father only. This is the first study to demonstrate that developmental conditions can affect social learning and neurogenetic responses in a subsequent generation.
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Affiliation(s)
- Fanny-Linn H Kraft
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia.
- Department of Zoology, Stockholm University, Stockholm, Sweden.
| | - Ondi L Crino
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia
- College of Science and Engineering, Flinders University, Bedford Park, SA, Australia
| | | | - Raven A Moraney
- Department of Biological Sciences, Clemson University, Clemson, SC, USA
| | - David F Clayton
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
- Department of Genetics and Biochemistry, Clemson University, Clemson, SC, USA
| | - Julia M George
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
- Department of Biological Sciences, Clemson University, Clemson, SC, USA
| | - Katherine L Buchanan
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia
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3
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Lu Y, Sciaccotta F, Kiely L, Bellanger B, Erisir A, Meliza CD. Rapid, Activity-Dependent Intrinsic Plasticity in the Developing Zebra Finch Auditory Cortex. J Neurosci 2023; 43:6872-6883. [PMID: 37648449 PMCID: PMC10573762 DOI: 10.1523/jneurosci.0354-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/14/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023] Open
Abstract
The acoustic environment an animal experiences early in life shapes the structure and function of its auditory system. This process of experience-dependent development is thought to be primarily orchestrated by potentiation and depression of synapses, but plasticity of intrinsic voltage dynamics may also contribute. Here, we show that in juvenile male and female zebra finches, neurons in a cortical-level auditory area, the caudal mesopallium (CM), can rapidly change their firing dynamics. This plasticity was only observed in birds that were reared in a complex acoustic and social environment, which also caused increased expression of the low-threshold potassium channel Kv1.1 in the plasma membrane and endoplasmic reticulum (ER). Intrinsic plasticity depended on activity, was reversed by blocking low-threshold potassium currents, and was prevented by blocking intracellular calcium signaling. Taken together, these results suggest that Kv1.1 is rapidly mobilized to the plasma membrane by activity-dependent elevation of intracellular calcium. This produces a shift in the excitability and temporal integration of CM neurons that may be permissive for auditory learning in complex acoustic environments during a crucial period for the development of vocal perception and production.SIGNIFICANCE STATEMENT Neurons can change not only the strength of their connections to other neurons, but also how they integrate synaptic currents to produce patterns of action potentials. In contrast to synaptic plasticity, the mechanisms and functional roles of intrinisic plasticity remain poorly understood. We found that neurons in the zebra finch auditory cortex can rapidly shift their spiking dynamics within a few minutes in response to intracellular stimulation. This plasticity involves increased conductance of a low-threshold potassium current associated with the Kv1.1 channel, but it only occurs in birds reared in a rich acoustic environment. Thus, auditory experience regulates a mechanism of neural plasticity that allows neurons to rapidly adapt their firing dynamics to stimulation.
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Affiliation(s)
| | | | | | | | - Alev Erisir
- Psychology Department
- Neuroscience Graduate Program, University of Virginia, Charlottesville, Virginia 22904
| | - C Daniel Meliza
- Psychology Department
- Neuroscience Graduate Program, University of Virginia, Charlottesville, Virginia 22904
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4
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Mackevicius EL, Gu S, Denisenko NI, Fee MS. Self-organization of songbird neural sequences during social isolation. eLife 2023; 12:e77262. [PMID: 37252761 PMCID: PMC10229124 DOI: 10.7554/elife.77262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/19/2023] [Indexed: 05/31/2023] Open
Abstract
Behaviors emerge via a combination of experience and innate predispositions. As the brain matures, it undergoes major changes in cellular, network, and functional properties that can be due to sensory experience as well as developmental processes. In normal birdsong learning, neural sequences emerge to control song syllables learned from a tutor. Here, we disambiguate the role of tutor experience and development in neural sequence formation by delaying exposure to a tutor. Using functional calcium imaging, we observe neural sequences in the absence of tutoring, demonstrating that tutor experience is not necessary for the formation of sequences. However, after exposure to a tutor, pre-existing sequences can become tightly associated with new song syllables. Since we delayed tutoring, only half our birds learned new syllables following tutor exposure. The birds that failed to learn were the birds in which pre-tutoring neural sequences were most 'crystallized,' that is, already tightly associated with their (untutored) song.
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Affiliation(s)
- Emily L Mackevicius
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, MITCambridgeUnited States
| | - Shijie Gu
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, MITCambridgeUnited States
| | - Natalia I Denisenko
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, MITCambridgeUnited States
| | - Michale S Fee
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, MITCambridgeUnited States
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5
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Abstract
Birds are our best models to understand vocal learning – a vocal production ability guided by auditory feedback, which includes human language. Among all vocal learners, songbirds have the most diverse life histories, and some aspects of their vocal learning ability are well-known, such as the neural substrates and vocal control centers, through vocal development studies. Currently, species are classified as either vocal learners or non-learners, and a key difference between the two is the development period, extended in learners, but short in non-learners. But this clear dichotomy has been challenged by the vocal learning continuum hypothesis. One way to address this challenge is to examine both learners and canonical non-learners and determine whether their vocal development is dichotomous or falls along a continuum. However, when we examined the existing empirical data we found that surprisingly few species have their vocal development periods documented. Furthermore, we identified multiple biases within previous vocal development studies in birds, including an extremely narrow focus on (1) a few model species, (2) oscines, (3) males, and (4) songs. Consequently, these biases may have led to an incomplete and possibly erroneous conclusions regarding the nature of the relationships between vocal development patterns and vocal learning ability. Diversifying vocal development studies to include a broader range of taxa is urgently needed to advance the field of vocal learning and examine how vocal development patterns might inform our understanding of vocal learning.
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6
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Gabbay-Dizdar N, Ilan M, Meiri G, Faroy M, Michaelovski A, Flusser H, Menashe I, Koller J, Zachor DA, Dinstein I. Early diagnosis of autism in the community is associated with marked improvement in social symptoms within 1-2 years. AUTISM : THE INTERNATIONAL JOURNAL OF RESEARCH AND PRACTICE 2021; 26:1353-1363. [PMID: 34623179 PMCID: PMC9340129 DOI: 10.1177/13623613211049011] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
LAY ABSTRACT It is widely believed that early diagnosis and treatment of autism spectrum disorder is essential for better outcome. This is demonstrated by the American Academy of Pediatrics recommendation to screen all 1.5-2.5-year-old toddlers for autism spectrum disorder. However, multiple longitudinal studies of children diagnosed with autism spectrum disorder at 1.5-6 years of age and treated in community settings have not reported any associations between earlier diagnosis and improved outcome in core autism spectrum disorder symptoms. In this study, we measured changes in core autism spectrum disorder symptoms over a 1-2-year period in 131 children diagnosed with autism spectrum disorder at 1.2-5 years of age, and treated in the community. The results revealed that children who were diagnosed before 2.5 years of age were three times more likely to exhibit considerable improvements in social autism spectrum disorder symptoms in comparison to children diagnosed at later ages. These results highlight the importance of early diagnosis and treatment of autism spectrum disorder even in community settings with heterogeneous services. In addition, these results motivate further prioritization of universal screening for autism spectrum disorder before 2.5 years of age.
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Affiliation(s)
| | - Michal Ilan
- Ben-Gurion University of the Negev, Israel.,Soroka University Medical Center, Israel
| | - Gal Meiri
- Ben-Gurion University of the Negev, Israel.,Soroka University Medical Center, Israel
| | - Michal Faroy
- Ben-Gurion University of the Negev, Israel.,Soroka University Medical Center, Israel
| | - Analya Michaelovski
- Ben-Gurion University of the Negev, Israel.,Soroka University Medical Center, Israel
| | - Hagit Flusser
- Ben-Gurion University of the Negev, Israel.,Soroka University Medical Center, Israel
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Gogola JV, Gores EO, London SE. Inhibitory cell populations depend on age, sex, and prior experience across a neural network for Critical Period learning. Sci Rep 2019; 9:19867. [PMID: 31882750 PMCID: PMC6934704 DOI: 10.1038/s41598-019-56293-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 12/10/2019] [Indexed: 12/16/2022] Open
Abstract
In many ways, the complement of cell subtypes determines the information processing that a local brain circuit can perform. For example, the balance of excitatory and inhibitory (E/I) signaling within a brain region contributes to response magnitude and specificity in ways that influence the effectiveness of information processing. An extreme example of response changes to sensory information occur across Critical Periods (CPs). In primary mammalian visual cortex, GAD65 and parvalbumin inhibitory cell types in particular control experience-dependent responses during a CP. Here, we test how the density of GAD65- and parvalbumin-expressing cells may inform on a CP for complex behavioral learning. Juvenile male zebra finch songbirds (females cannot sing) learn to sing through coordinated sensory, sensorimotor, and motor learning processes distributed throughout a well-defined neural network. There is a CP for sensory learning, the process by which a young male forms a memory of his “tutor’s” song, which is then used to guide the young bird’s emerging song structure. We quantified the effect of sex and experience with a tutor on the cell densities of GAD65- and parvalbumin-expressing cells across major nodes of the song network, using ages that span the CP for tutor song memorization. As a resource, we also include whole-brain mapping data for both genes. Results indicate that inhibitory cell populations differ across sex, age, and experiential conditions, but not always in the ways we predicted.
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Affiliation(s)
- Joseph V Gogola
- Department of Psychology, Institute for Mind and Biology, Chicago, USA
| | - Elisa O Gores
- Department of Psychology, Institute for Mind and Biology, Chicago, USA
| | - Sarah E London
- Department of Psychology, Institute for Mind and Biology, Chicago, USA. .,Grossman Institute for Neuroscience, Quantitative Biology and Human Behavior, Committee on Neurobiology, Committee on Evolutionary Biology, The University of Chicago, Chicago, IL, USA.
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8
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Schmitt LM, Wang J, Pedapati EV, Thurman AJ, Abbeduto L, Erickson CA, Sweeney JA. A neurophysiological model of speech production deficits in fragile X syndrome. Brain Commun 2019; 2. [PMID: 32924010 PMCID: PMC7425415 DOI: 10.1093/braincomms/fcz042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Fragile X syndrome is the most common inherited intellectual disability and monogenic cause of autism spectrum disorder. Expressive language deficits, especially in speech production, are nearly ubiquitous among individuals with fragile X, but understanding of the neurological bases for these deficits remains limited. Speech production depends on feedforward control and the synchronization of neural oscillations between speech-related areas of frontal cortex and auditory areas of temporal cortex. Interaction in this circuitry allows the corollary discharge of intended speech generated from an efference copy of speech commands to be compared against actual speech sounds, which is critical for making adaptive adjustments to optimize future speech. We aimed to determine whether alterations in coherence between frontal and temporal cortices prior to speech production are present in individuals with fragile X and whether they relate to expressive language dysfunction. Twenty-one participants with full-mutation fragile X syndrome (aged 7-55 years, eight females) and 20 healthy controls (matched on age and sex) completed a talk/listen paradigm during high-density EEG recordings. During the talk task, participants repeated pronounced short vocalizations of 'Ah' every 1-2 s for a total of 180 s. During the listen task, participants passively listened to their recordings from the talk task. We compared pre-speech event-related potential activity, N1 suppression to speech sounds, single trial gamma power and fronto-temporal coherence between groups during these tasks and examined their relation to performance during a naturalistic language task. Prior to speech production, fragile X participants showed reduced pre-speech negativity, reduced fronto-temporal connectivity and greater frontal gamma power compared to controls. N1 suppression during self-generated speech did not differ between groups. Reduced pre-speech activity and increased frontal gamma power prior to speech production were related to less intelligible speech as well as broader social communication deficits in fragile X syndrome. Our findings indicate that coordinated pre-speech activity between frontal and temporal cortices is disrupted in individuals with fragile X in a clinically relevant way and represents a mechanism contributing to prominent speech production problems in the disorder.
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Affiliation(s)
- Lauren M Schmitt
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jun Wang
- Department of Psychology, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Ernest V Pedapati
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA.,Department of Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Angela John Thurman
- Psychiatry and Behavioral Sciences, University of California, Davis, MIND Institute, Sacramento, CA, USA
| | - Leonard Abbeduto
- Psychiatry and Behavioral Sciences, University of California, Davis, MIND Institute, Sacramento, CA, USA
| | - Craig A Erickson
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA.,Department of Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - John A Sweeney
- Department of Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
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Lansverk AL, Schroeder KM, London SE, Griffith SC, Clayton DF, Balakrishnan CN. The variability of song variability in zebra finch ( Taeniopygia guttata) populations. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190273. [PMID: 31218064 PMCID: PMC6549970 DOI: 10.1098/rsos.190273] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/12/2019] [Indexed: 05/03/2023]
Abstract
Birdsong is a classic example of a learned social behaviour. Song behaviour is also influenced by genetic factors, and understanding the relative contributions of genetic and environmental influences remains a major goal. In this study, we take advantage of captive zebra finch populations to examine variation in a population-level song trait: song variability. Song variability is of particular interest in the context of individual recognition and in terms of the neuro-developmental mechanisms that generate song novelty. We find that the Australian zebra finch Taeniopygia guttata castanotis (TGC) maintains higher song diversity than the Timor zebra finch T. g. guttata (TGG) even after experimentally controlling for early life song exposure, suggesting a genetic basis to this trait. Although wild-derived TGC were intermediate in song variability between domesticated TGC populations and TGG, the difference between domesticated and wild TGC was not statistically significant. The observed variation in song behaviour among zebra finch populations represents a largely untapped opportunity for exploring the mechanisms of social behaviour.
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Affiliation(s)
- Allison L. Lansverk
- Department of Biology, East Carolina University, Greenville, NC, USA
- Author for correspondence: Allison L. Lansverk e-mail:
| | | | - Sarah E. London
- Department of Psychology, University of Chicago, Chicago, IL, USA
| | - Simon C. Griffith
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - David F. Clayton
- Department of Biological & Experimental Psychology, Queen Mary University of London, London, UK
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10
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Kelly TK, Ahmadiantehrani S, Blattler A, London SE. Epigenetic regulation of transcriptional plasticity associated with developmental song learning. Proc Biol Sci 2019; 285:rspb.2018.0160. [PMID: 29720411 DOI: 10.1098/rspb.2018.0160] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/06/2018] [Indexed: 12/19/2022] Open
Abstract
Ethologists discovered over 100 years ago that some lifelong behavioural patterns were acquired exclusively during restricted developmental phases called critical periods (CPs). Developmental song learning in zebra finches is one of the most striking examples of a CP for complex learned behaviour. After post-hatch day 65, whether or not a juvenile male can memorize the song of a 'tutor' depends on his experiences in the month prior. If he experienced a tutor, he can no longer learn, but if he has been isolated from hearing a tutor the learning period is extended. We aimed to identify how tutor experience alters the brain and controls the ability to learn. Epigenetic landscapes are modulated by experience and are able to regulate the transcription of sets of genes, thereby affecting cellular function. Thus, we hypothesized that tutor experiences determine the epigenetic landscape in the auditory forebrain, a region required for tutor song memorization. Using ChIPseq, RNAseq and molecular biology, we provide evidence that naturalistic experiences associated with the ability to learn can induce epigenetic changes, and propose transcriptional plasticity as a mediator of CP learning potential.
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Affiliation(s)
| | - Somayeh Ahmadiantehrani
- Department of Psychology, Institute for Mind and Biology, University of Chicago, Chicago, IL 60637, USA
| | | | - Sarah E London
- Department of Psychology, Institute for Mind and Biology, University of Chicago, Chicago, IL 60637, USA
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Vahaba DM, Remage-Healey L. Neuroestrogens rapidly shape auditory circuits to support communication learning and perception: Evidence from songbirds. Horm Behav 2018; 104:77-87. [PMID: 29555375 PMCID: PMC7025793 DOI: 10.1016/j.yhbeh.2018.03.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/15/2018] [Accepted: 03/15/2018] [Indexed: 12/19/2022]
Abstract
Contribution to Special Issue on Fast effects of steroids. Steroid hormones, such as estrogens, were once thought to be exclusively synthesized in the ovaries and enact transcriptional changes over the course of hours to days. However, estrogens are also locally synthesized within neural circuits, wherein they rapidly (within minutes) modulate a range of behaviors, including spatial cognition and communication. Here, we review the role of brain-derived estrogens (neuroestrogens) as modulators within sensory circuits in songbirds. We first present songbirds as an attractive model to explore how neuroestrogens in auditory cortex modulate vocal communication processing and learning. Further, we examine how estrogens may enhance vocal learning and auditory memory consolidation in sensory cortex via mechanisms similar to those found in the hippocampus of rodents and birds. Finally, we propose future directions for investigation, including: 1) the extent of developmental and hemispheric shifts in aromatase and membrane estrogen receptor expression in auditory circuits; 2) how neuroestrogens may impact inhibitory interneurons to regulate audition and critical period plasticity; and, 3) dendritic spine plasticity as a candidate mechanism mediating estrogen-dependent effects on vocal learning. Together, this perspective of estrogens as neuromodulators in the vertebrate brain has opened new avenues in understanding sensory plasticity, including how hormones can act on communication circuits to influence behaviors in other vocal learning species, such as in language acquisition and speech processing in humans.
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Affiliation(s)
- Daniel M Vahaba
- Neuroscience and Behavior Program, Center for Neuroendocrine Studies, University of Massachusetts Amherst, Amherst, MA 01003, United States
| | - Luke Remage-Healey
- Neuroscience and Behavior Program, Center for Neuroendocrine Studies, University of Massachusetts Amherst, Amherst, MA 01003, United States.
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