Related Experiment Video
Updated: Jun 28, 2026
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Determining Ultrasonic Vocalization Preferences in Mice using a Two-choice Playback Test
Published on: September 3, 2015
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Rodent ultrasonic vocal interaction resolved with millimeter precision using hybrid beamforming.
Max L Sterling1,2,3, Ruben Teunisse1, Bernhard Englitz1
1Computational Neuroscience Lab, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, Netherlands.
Elife
|July 26, 2023
Summary
A new Hybrid Vocalization Localizer (HyVL) system precisely tracks rodent ultrasonic vocalizations (USVs), improving social communication studies. This affordable, open-source technology enhances accuracy in behavioral research.
Area of Science:
- Neuroscience
- Bioacoustics
- Animal Behavior
Background:
- Rodent ultrasonic vocalizations (USVs) are crucial for communication and navigation.
- USVs are increasingly vital in neurodevelopmental and neurolinguistic research.
- Accurate emitter attribution of USVs during social interactions is a significant challenge.
Purpose of the Study:
- To introduce a novel system for precise localization of ultrasonic vocalizations (USVs) in rodents.
- To overcome limitations in current methods for attributing USVs to their emitters.
- To enhance the reliability of behavioral analyses in rodent social communication studies.
Main Methods:
- Development of a hybrid ultrasonic tracking system (HyVL) integrating an acoustic camera and microphones.
- Achieving millimeter precision in USV localization (~3.4-4.8 mm).
- Analysis of mouse courtship and social interactions using the HyVL system.
Main Results:
- HyVL achieved ~3x better localization precision than existing systems.
- Demonstrated distinct spatial positioning of male and female USVs during courtship.
- Identified dominance roles in male-female-male interactions based on vocalization rate and location.
- Revealed potential overestimation of female USVs in previous studies due to localization imprecision.
Conclusions:
- HyVL significantly advances the precision of studying rodent social communication.
- The system is affordable, open-source, and easily integrated into existing experimental setups.
- HyVL reduces the need for extensive experiments and animal subjects, improving research efficiency.
