The effects of interaural time and level differences on the binaural interaction component of the auditory brainstem response in Cope's gray treefrogs.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος:	The effects of interaural time and level differences on the binaural interaction component of the auditory brainstem response in Cope's gray treefrogs.
Συγγραφείς:	Pushpalatha Krishnan J; Department of Biology, Oklahoma State University, Stillwater, OK, USA., Chawla A; Department of Biology, Oklahoma State University, Stillwater, OK, USA., McCullagh EA; Department of Biology, Oklahoma State University, Stillwater, OK, USA., Reichert MS; Department of Biology, Oklahoma State University, Stillwater, OK, USA. michael.reichert@okstate.edu.
Πηγή:	Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology [J Comp Physiol A Neuroethol Sens Neural Behav Physiol] 2026 Sep; Vol. 212 (5), pp. 869-885. Date of Electronic Publication: 2026 May 03.
Τύπος έκδοσης:	Journal Article
Γλώσσα:	English
Στοιχεία περιοδικού:	Publisher: Springer Country of Publication: Germany NLM ID: 101141792 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1432-1351 (Electronic) Linking ISSN: 03407594 NLM ISO Abbreviation: J Comp Physiol A Neuroethol Sens Neural Behav Physiol Subsets: MEDLINE
Imprint Name(s):	Original Publication: Berlin ; New York : Springer, c2001-
Ιατρικοί όροι (MeSH):	Evoked Potentials, Auditory, Brain Stem/physiology , Anura/physiology , Sound Localization/physiology , Brain Stem/physiology , Auditory Perception*/physiology, Reaction Time/physiology ; Animals ; Female ; Male ; Acoustic Stimulation ; Time Factors
Περίληψη:	Processing binaural cues is crucial for many acoustic communication tasks, and understanding the neural mechanisms of binaural sound processing gives important insights into how receivers localize signalers, which in anurans is a key component of mate selection. We characterized the binaural interaction component (BIC) of the auditory brainstem response (ABR) by collecting monaural and binaural ABRs using click stimuli with varying interaural time difference (ITD) and interaural level difference (ILD) in male and female Cope's gray treefrogs (Hyla chrysoscelis). We hypothesized that the latency of the BIC peaks would increase with larger ITDs and ILDs. We also hypothesized that females would show a stronger relationship between binaural cues and BIC characteristics than males because of the greater importance of directional hearing for females. We characterized two prominent BIC peaks, DN1 and DN2. Both BIC peak latencies had a positive relationship with ITD, but there was no effect of ITD on peak amplitudes. The amplitude and latency of the BIC peaks were not affected by variation in ILD. There were no sex or body size effects on ABR or BIC characteristics. Our findings demonstrate that the BIC is driven primarily by ITD in H. chrysoscelis. This is the first study to characterize the BIC in an amphibian, which expands the comparative understanding of the neural mechanisms of binaural hearing in vertebrates. (© 2026. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Competing Interests:	Declarations. Conflict of interest: The authors declare no competing interests.
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Contributed Indexing:	Keywords: Auditory brainstem response; Binaural interaction component; Directional hearing; Interaural level difference; Interaural time difference; Sexual selection
Entry Date(s):	Date Created: 20260503 Date Completed: 20261006 Latest Revision: 20261006
Update Code:	20261007
DOI:	10.1007/s00359-026-01811-7
PMID:	42070176
Βάση Δεδομένων:	MEDLINE

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Items	– Name: Title Label: Title Group: Ti Data: The effects of interaural time and level differences on the binaural interaction component of the auditory brainstem response in Cope's gray treefrogs. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AU" term="%22Pushpalatha+Krishnan+J%22">Pushpalatha Krishnan J</searchLink>; Department of Biology, Oklahoma State University, Stillwater, OK, USA.<br /><searchLink fieldCode="AU" term="%22Chawla+A%22">Chawla A</searchLink>; Department of Biology, Oklahoma State University, Stillwater, OK, USA.<br /><searchLink fieldCode="AU" term="%22McCullagh+EA%22">McCullagh EA</searchLink>; Department of Biology, Oklahoma State University, Stillwater, OK, USA.<br /><searchLink fieldCode="AU" term="%22Reichert+MS%22">Reichert MS</searchLink>; Department of Biology, Oklahoma State University, Stillwater, OK, USA. michael.reichert@okstate.edu. – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22101141792%22">Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology</searchLink> [J Comp Physiol A Neuroethol Sens Neural Behav Physiol] 2026 Sep; Vol. 212 (5), pp. 869-885. <i>Date of Electronic Publication: </i>2026 May 03. – Name: TypePub Label: Publication Type Group: TypPub Data: Journal Article – Name: Language Label: Language Group: Lang Data: English – Name: TitleSource Label: Journal Info Group: Src Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Springer%22">Springer </searchLink><i>Country of Publication: </i>Germany <i>NLM ID: </i>101141792 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1432-1351 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2203407594%22">03407594 </searchLink><i>NLM ISO Abbreviation: </i>J Comp Physiol A Neuroethol Sens Neural Behav Physiol <i>Subsets: </i>MEDLINE – Name: PublisherInfo Label: Imprint Name(s) Group: PubInfo Data: <i>Original Publication</i>: Berlin ; New York : Springer, c2001- – Name: SubjectMESH Label: MeSH Terms Group: Su Data: <searchLink fieldCode="MM" term="%22Evoked+Potentials%2C+Auditory%2C+Brain+Stem%22">Evoked Potentials, Auditory, Brain Stem</searchLink>/<searchLink fieldCode="MM" term="%22Evoked+Potentials%2C+Auditory%2C+Brain+Stem+physiology%22">physiology</searchLink> <br /><searchLink fieldCode="MM" term="%22Anura%22">Anura</searchLink>/<searchLink fieldCode="MM" term="%22Anura+physiology%22">physiology</searchLink> <br /><searchLink fieldCode="MM" term="%22Sound+Localization%22">Sound Localization</searchLink>/<searchLink fieldCode="MM" term="%22Sound+Localization+physiology%22">physiology</searchLink> <br /><searchLink fieldCode="MM" term="%22Brain+Stem%22">Brain Stem</searchLink>/<searchLink fieldCode="MM" term="%22Brain+Stem+physiology%22">physiology</searchLink> <br /><searchLink fieldCode="MM" term="%22Auditory+Perception%22">Auditory Perception*</searchLink>/<searchLink fieldCode="MM" term="%22Auditory+Perception+physiology%22">physiology</searchLink><br /><searchLink fieldCode="MH" term="%22Reaction+Time%22">Reaction Time</searchLink>/<searchLink fieldCode="MH" term="%22Reaction+Time+physiology%22">physiology</searchLink> ; <searchLink fieldCode="MH" term="%22Animals%22">Animals</searchLink> ; <searchLink fieldCode="MH" term="%22Female%22">Female</searchLink> ; <searchLink fieldCode="MH" term="%22Male%22">Male</searchLink> ; <searchLink fieldCode="MH" term="%22Acoustic+Stimulation%22">Acoustic Stimulation</searchLink> ; <searchLink fieldCode="MH" term="%22Time+Factors%22">Time Factors</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Processing binaural cues is crucial for many acoustic communication tasks, and understanding the neural mechanisms of binaural sound processing gives important insights into how receivers localize signalers, which in anurans is a key component of mate selection. We characterized the binaural interaction component (BIC) of the auditory brainstem response (ABR) by collecting monaural and binaural ABRs using click stimuli with varying interaural time difference (ITD) and interaural level difference (ILD) in male and female Cope's gray treefrogs (Hyla chrysoscelis). We hypothesized that the latency of the BIC peaks would increase with larger ITDs and ILDs. We also hypothesized that females would show a stronger relationship between binaural cues and BIC characteristics than males because of the greater importance of directional hearing for females. We characterized two prominent BIC peaks, DN1 and DN2. Both BIC peak latencies had a positive relationship with ITD, but there was no effect of ITD on peak amplitudes. The amplitude and latency of the BIC peaks were not affected by variation in ILD. There were no sex or body size effects on ABR or BIC characteristics. Our findings demonstrate that the BIC is driven primarily by ITD in H. chrysoscelis. This is the first study to characterize the BIC in an amphibian, which expands the comparative understanding of the neural mechanisms of binaural hearing in vertebrates.<br /> (© 2026. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.) – Name: Abstract Label: Competing Interests Group: Ab Data: Declarations. Conflict of interest: The authors declare no competing interests. – Name: Ref Label: References Group: RefInfo Data: Arak A (1983) Sexual selection by male-male competition in natterjack toad choruses. Nature 306:261–262. (PMID: <searchLink fieldCode="PM" term="%2210%2E1038%2F306261a0%22">10.1038/306261a0)</searchLink><br />Bates D, Maechler M, Bolker BM, Walker S (2015) Fitting linear mixed-effects models using lme4. J Stat Softw 67:1–48. https://doi.org/10.18637/jss.v067.i01. 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RecordInfo	BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00359-026-01811-7 Languages: – Code: eng Text: English PhysicalDescription: Pagination: StartPage: 869 Subjects: – SubjectFull: Reaction Time physiology Type: general – SubjectFull: Animals Type: general – SubjectFull: Female Type: general – SubjectFull: Male Type: general – SubjectFull: Acoustic Stimulation Type: general – SubjectFull: Time Factors Type: general – SubjectFull: Evoked Potentials, Auditory, Brain Stem physiology Type: general – SubjectFull: Anura physiology Type: general – SubjectFull: Sound Localization physiology Type: general – SubjectFull: Brain Stem physiology Type: general – SubjectFull: Auditory Perception physiology Type: general Titles: – TitleFull: The effects of interaural time and level differences on the binaural interaction component of the auditory brainstem response in Cope's gray treefrogs. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pushpalatha Krishnan J – PersonEntity: Name: NameFull: Chawla A – PersonEntity: Name: NameFull: McCullagh EA – PersonEntity: Name: NameFull: Reichert MS IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: 2026 Sep Type: published Y: 2026 Identifiers: – Type: issn-electronic Value: 1432-1351 Numbering: – Type: volume Value: 212 – Type: issue Value: 5 Titles: – TitleFull: Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology Type: main
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