The mechanisms of sound localization are actively debated, especially which cues are predominately used and why. Our study provides behavioural data in chickens (Gallus gallus) and relates these to estimates of the perceived physical cues. Sound localization acuity was quantified as the Minimum Audible Angle (MAA) in azimuth. Pure-tone MAA was 12.3°, 9.3°, 8.9° and 14.5° for frequencies of 500, 1000, 2000, and 4000 Hz, respectively. Broadband-noise MAA was 12.2°, which indicates excellent behavioural acuity. We determined "external cues" from head-related transfer functions of chickens. These were used to derive "internal cues", taking into account published data on the effect of the coupled middle ears. Our estimates of the internal cues indicate that chickens likely relied on ITD cues alone at low frequencies of 500 and 1000 Hz, whereas at 2000 and 4000 Hz, ILD may be the dominant cue.
ACCEPTED MANUSCRIPT
SHORT COMMUNICATION|
14 February 2022
Chickens have excellent sound localization ability
Bianca Krumm,
Bianca Krumm
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
2
Cluster of Excellence “Hearing4all 2.0”, Division for Cochlea and auditory brainstem physiology, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
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Georg M. Klump
,
Georg M. Klump
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
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Christine Köppl,
Christine Köppl
2
Cluster of Excellence “Hearing4all 2.0”, Division for Cochlea and auditory brainstem physiology, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
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Rainer Beutelmann
,
Rainer Beutelmann
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
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Ulrike Langemann
Ulrike Langemann
*
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
*Author for correspondence: ulrike.langemann@uni-oldenburg.de
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Bianca Krumm
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
2
Cluster of Excellence “Hearing4all 2.0”, Division for Cochlea and auditory brainstem physiology, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
Georg M. Klump
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
Christine Köppl
2
Cluster of Excellence “Hearing4all 2.0”, Division for Cochlea and auditory brainstem physiology, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
Rainer Beutelmann
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
Ulrike Langemann
*
1
Cluster of Excellence “Hearing4all 2.0”, Division for Animal Physiology and Behaviour, School of Medicine and Health Sciences, Department of Neuroscience, Carl von Ossietzky University of Oldenburg, Oldenburg
, Germany
*Author for correspondence: ulrike.langemann@uni-oldenburg.de
Received:
28 Sep 2021
Accepted:
08 Feb 2022
Online ISSN: 1477-9145
Print ISSN: 0022-0949
Funding Group:
- Award Group:
- Funder(s): Deutsche Forschungsgemeinschaft
- Award Id(s): EXC2177, "Hearing4all 2.0"
- Funder(s):
J Exp Biol jeb.243601.
Article history
Received:
28 Sep 2021
Accepted:
08 Feb 2022
Currently Viewing Accepted Manuscript - Newer Version Available
11 Mar 2022
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Citation
Bianca Krumm, Georg M. Klump, Christine Köppl, Rainer Beutelmann, Ulrike Langemann; Chickens have excellent sound localization ability. J Exp Biol 2022; jeb.243601. doi: https://doi.org/10.1242/jeb.243601
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