Absence of Jamming Avoidance and Flight Path Similarity in Paired Bent-Winged Bats, Miniopterus Fuliginosus DOI Creative Commons
Kazuma Hase,

Saori Sugihara,

Seiya Oka

et al.

Journal of Robotics and Mechatronics, Journal Year: 2021, Volume and Issue: 33(3), P. 564 - 571

Published: June 19, 2021

Echolocating bats perceive their surroundings by listening to the echoes of self-generated ultrasound pulses. When multiple conspecifics fly in close proximity each other, sounds emitted from nearby individuals could mutually interfere with echo reception. Many studies suggest that employ frequency shifts avoid spectral overlap pulses other bats. Technical constraints recording technology have made it challenging capture subtle changes pulse characteristics bat calls. Therefore, how change behavior extract own context acoustic interference remains unclear. Also, our best knowledge, no investigated whether individual flight paths when are present, although movements likely reduce masking. Here, we recorded echolocation flying alone or pairs using telemetry microphones. Flight trajectories were also reconstructed stereo camera recordings. We found clear tendency broaden differences compared alone. However, some showed pairs, which suggests can recognize calls based on initial call between individuals. In addition, paired spend more time same directions than opposite directions. Besides, similar “paired trials” virtual trials. Our results tend follow flight. For following bat, may be reduced, while opportunity eavesdrop bats’ increased.

Language: Английский

Cerebellar activity predicts vocalization in fruit bats DOI Creative Commons

S Hariharan,

Eugenia González‐Palomares, Susanne S. Babl

et al.

Current Biology, Journal Year: 2024, Volume and Issue: 34(21), P. 5112 - 5119.e3

Published: Oct. 9, 2024

Echolocating bats exhibit remarkable auditory behaviors, enabled by adaptations both within and outside their system. Yet research on echolocating has focused mostly brain areas that belong to the classic ascending pathway. This study provides direct evidence linking cerebellum, an evolutionarily ancient non-classic structure, vocalization hearing. We report in fruit-eating bat Carollia perspicillata, external sounds can evoke cerebellar responses with latencies below 20 ms. Such fast are indicative of early inputs cerebellum. After establishing as a good model responses, we searched for neural correlate vocal production investigated spike trains field potentials occurring before after found type sound produced (echolocation pulses or communication calls) be decoded from pre-vocal post-vocal signals, prediction accuracies reach above 85%. The latter motor-coordination structure lies Taken together, our findings provide specializations hearing cerebellum specialist.

Language: Английский

Citations

1
Neural Processing of Naturalistic Echolocation Signals in Bats DOI Creative Commons
M. Jerome Beetz, Julio C. Hechavarría

Frontiers in Neural Circuits, Journal Year: 2022, Volume and Issue: 16

Published: May 18, 2022

Echolocation behavior, a navigation strategy based on acoustic signals, allows scientists to explore neural processing of behaviorally relevant stimuli. For the purpose orientation, bats broadcast echolocation calls and extract spatial information from echoes. Because control call emission thus availability information, behavioral relevance these signals is undiscussable. While most neurophysiological studies, conducted in past, used synthesized stimuli that mimic portions recent progress has been made understand how naturalistic are encoded bat brain. Here, we review does stimulus history affect processing, multiple objects embedded naturalistic, noisy environment processed We end our by discussing huge potential state-of-the-art recording techniques provide gain more complete picture neuroethology behavior.

Language: Английский

Citations

7
Doppler shift compensation performance in Hipposideros pratti across experimental paradigms DOI Creative Commons
Jinhong Luo,

Manman Lu,

Xindong Wang

et al.

Frontiers in Systems Neuroscience, Journal Year: 2022, Volume and Issue: 16

Published: Aug. 1, 2022

A central aim of neuroethological research is to discover the mechanisms natural behaviors in controlled laboratory studies. This goal, however, comes with challenges, namely selection experimental paradigms that allow full expression behaviors. Here, we explore this problem echolocating bats evolved Doppler shift compensation (DSC) sonar vocalizations yield close matching between echo frequency and hearing sensitivity. We ask if behavioral tasks influence precision DSC Pratt’s roundleaf bat, Hipposideros pratti , three classic evoking audio-vocal adjustments: Stationary listening playbacks, transported on a moving pendulum, flying freely. found conditions had strong audiovocal adjustments bats. H. exhibited robust both free-flying moving-pendulum experiments but did not exhibit consistent playback experiments. featured maximum magnitude 87% 0.27% free flight experiment. Interestingly, pendulum experiment displayed surprisingly high-precision DSC, an 84% precision. Such performance places among bat species exhibiting most precise control frequency. These data support emerging view Hipposiderid have system highlight importance selecting

Language: Английский

Citations

5
Flexible control of vocal timing in Carollia perspicillata bats enables escape from acoustic interference DOI Creative Commons
Ava Kiai, Jan Clemens, Manfred Kössl

et al.

Communications Biology, Journal Year: 2023, Volume and Issue: 6(1)

Published: Nov. 13, 2023

In natural environments, background noise can degrade the integrity of acoustic signals, posing a problem for animals that rely on their vocalizations communication and navigation. A simple behavioral strategy to combat interference would be restrict call emissions periods low-amplitude or no noise. Using audio playback computational tools automated detection over 2.5 million from groups freely vocalizing bats, we show bats (Carollia perspicillata) dynamically adapt timing calls avoid jamming in both predictably unpredictably patterned This study demonstrates spontaneously seek out temporal windows opportunity acoustically crowded providing mechanism efficient echolocation cluttered landscapes.

Language: Английский

Citations

2
Echo-locate: Cerebellar activity predicts vocalization in fruit-eating bats DOI Creative Commons

S Hariharan,

Eugenia González‐Palomares, Julio C. Hechavarría

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 11, 2024

Abstract Echolocating bats exhibit remarkable auditory behaviors, enabled by adaptations within and outside their system. Yet, research in echolocating has focused mostly on brain areas that belong to the classic ascending pathway. This study provides direct evidence linking cerebellum, an evolutionarily ancient non-classic structure, vocalization hearing. We report fruit-eating bat Carollia perspicillata , external sounds can evoke cerebellar responses with latencies below 20 ms. Such fast are indicative of early inputs cerebellum. In vocalizing bats, distinct spike train patterns allow prediction over 85% accuracy sound they about produce, or have just produced, i.e., communication calls echolocation pulses. Taken together, our findings provide specializations for hearing cerebellum specialist. Teaser The responds predicts future past vocalizations

Language: Английский

Citations

0
Flexible control of vocal timing in bats enables escape from acoustic interference DOI Creative Commons
Jan Clemens, Manfred Kössl, David Poeppel

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: June 9, 2023

Abstract In natural environments, background noise can degrade the integrity of acoustic signals, posing a problem for animals that rely on their vocalizations communication and navigation. A simple behavioral strategy to combat interference would be restrict call emissions periods low-amplitude or no noise. Using audio playback computational tools automated detection over 2.5 million from groups freely vocalizing bats, we show bats ( Carollia perspicillata ) dynamically adapt timing calls avoid jamming in both predictably unpredictably patterned This study demonstrates spontaneously seek out temporal windows opportunity acoustically crowded providing mechanism efficient echolocation cluttered landscapes.

Language: Английский

Citations

1
Flexible control of vocal timing inCarollia perspicillatabats enables escape from acoustic interference DOI Creative Commons
Ava Kiai, Jan Clemens, Manfred Kössl

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: May 9, 2023

Abstract In natural environments, background noise can degrade the integrity of acoustic signals, posing a problem for animals that rely on their vocalizations communication and navigation. A simple behavioral strategy to combat interference would be restrict call emissions periods low-amplitude or no noise. Using audio playback computational tools automated detection over 2.5 million from groups freely vocalizing bats, we show bats ( Carollia perspicillata ) dynamically adapt timing calls avoid jamming in both predictably unpredictably patterned This study demonstrates spontaneously seek out temporal windows opportunity acoustically crowded providing mechanism efficient echolocation cluttered landscapes. One Sentence Summary Bats by rapidly adjusting pattern varying

Language: Английский

Citations

0
Absence of Jamming Avoidance and Flight Path Similarity in Paired Bent-Winged Bats, Miniopterus Fuliginosus DOI Creative Commons
Kazuma Hase,

Saori Sugihara,

Seiya Oka

et al.

Journal of Robotics and Mechatronics, Journal Year: 2021, Volume and Issue: 33(3), P. 564 - 571

Published: June 19, 2021

Echolocating bats perceive their surroundings by listening to the echoes of self-generated ultrasound pulses. When multiple conspecifics fly in close proximity each other, sounds emitted from nearby individuals could mutually interfere with echo reception. Many studies suggest that employ frequency shifts avoid spectral overlap pulses other bats. Technical constraints recording technology have made it challenging capture subtle changes pulse characteristics bat calls. Therefore, how change behavior extract own context acoustic interference remains unclear. Also, our best knowledge, no investigated whether individual flight paths when are present, although movements likely reduce masking. Here, we recorded echolocation flying alone or pairs using telemetry microphones. Flight trajectories were also reconstructed stereo camera recordings. We found clear tendency broaden differences compared alone. However, some showed pairs, which suggests can recognize calls based on initial call between individuals. In addition, paired spend more time same directions than opposite directions. Besides, similar “paired trials” virtual trials. Our results tend follow flight. For following bat, may be reduced, while opportunity eavesdrop bats’ increased.

Language: Английский

Citations

0