23 papers · ranked by Valyu relevance
Takahiro Hiraga, Yasufumi Yamada, Ryo Kobayashi
Bats perceive the three-dimensional (3D) environment by emitting ultrasound pulses from their nose or mouth and receiving echoes through both ears. To detect the position of a target object, it is necessary to know the distance and direction of the target. Certain bat species synchronize the movement of their pinnae…
Wu-Jung Lee, John R. Buck, Peter L. Tyack
Echolocation is a closed-loop active sensing modality in which animals not only choose how they move to acquire information, but also actively modulate incoming sensory (echo) information by shaping the acoustic signals they emit to probe the environment. While many models describe how echolocating animals react to…
Yu Teshima, Yasufumi Yamada, Takao Tsuchiya, Olga Heim + 1 more
'Shizuko Hiryu'] Background Echolocating bats use echo information to perceive space, control their behavior, and adjust flight navigation strategies in various environments. However, the echolocation behavior of bats, including echo information, has not been thoroughly investigated as it is technically difficult to…
M. Jerome Beetz, Julio C. Hechavarría
Echolocation behavior, a navigation strategy based on acoustic signals, allows scientists to explore neural processing of behaviorally relevant stimuli. For the purpose of orientation, bats broadcast echolocation calls and extract spatial information from the echoes. Because bats control call emission and thus the…
Haydée G García-Lázaro, Santani Teng
Echolocation enables blind individuals to perceive and navigate their environment by emitting clicks and interpreting their returning echoes. While expert blind echolocators demonstrate remarkable spatial accuracy, the behavioral and neural mechanisms supporting the temporal integration of spatial echoacoustic cues…
Santani Teng, Giovanni Fusco, Aarshil Patel
Blindness imposes constraints on the acquisition of environmental sensory information. To mitigate those constraints, some blind people employ active echolocation, a technique in which self-generated tongue “clicks” produce informative reflections from surrounding surfaces. Practitioners typically produce multiple…
Michał Bujacz, Aleksandra Królak, Bartłomiej Sztyler, Piotr Skulimowski + 2 more
'Piotr Skulimowski' 'Paweł Strumiłło' 'Abel C.H. Chen'] Echolocation is a vital method of spatial orientation for many visually impaired individuals who are willing to and able to learn it. Blind echolocators use a variety of sounds, such as mouth clicks, cane taps, or specialized sound-emitting devices, to perceive…
Lore Thaler, Giammarco Di Gregorio, Denise Foresteire
Click-based echolocation can support mobility and orientation in people with vision impairments (VI) when used alongside other mobility methods. Only a small number of people with VI use click-based echolocation. Previous research about echolocation addresses the skill of echolocation per se to understand how…
Ravi Umadi, Uwe Firzlaff
Echolocating bats dynamically adjust their sonar signals during prey pursuit, yet the mechanistic limits that govern these rapid transitions have remained unclear. Here, we introduce the responsivity framework, a predictive model that formalises the scaling between echo delay, call rate, and relative velocity through a…
Ming Chen, James A. Simmons
Accurate imaging of target shape is a crucial aspect of wideband FM biosonar in echolocating bats, for which we have developed new algorithms that provide a solution for the shape of complicated targets in the computational domain. We use recurrent neural networks and convolutional neural networks to determine the…
Junsu Jang, Florian Meyer, Eric R. Snyder, Sean M. Wiggins + 2 more
'Simone Baumann‐Pickering' 'John A. Hildebrand'] Localizing and tracking of marine mammals can reveal key insights into behaviors underwater that otherwise would remain unexplored. A promising nonintrusive approach to obtaining location information of marine mammals is based on recordings of bio-acoustic signals by…
Yu Teshima, Mayuko Mogi, Hare Nishida, Takao Tsuchiya + 2 more
High-precision visual sensing has been achieved by combining cameras with deep learning. However, an unresolved challenge involves identifying information that remains elusive for optical sensors, such as occlusion spots hidden behind objects. Compared to light, sound waves have longer wavelengths and can, therefore…
Frederike Dümbgen, Adrien Hoffet, Mihailo Kolundžija, Adam Scholefield + 1 more
'Adam Scholefield' 'Martin Vetterli'] Abstract—For safe and efficient operation, mobile robots need to perceive their environment, and in particular, perform tasks such as obstacle detection, localization, and mapping. Although robots are often equipped with microphones and speakers, the audio modality is rarely used…
Federico Bosia, Vinícius F. Dal Poggetto, Antonio S. Gliozzi, Gabriele Greco + 7 more
'Gabriele Greco' 'Martin Lott' 'Marco Miniaci' 'Federica Ongaro' 'M. Onorato' 'S. F. Seyyedizadeh' 'M. Tortello' 'Nicola M. Pugno'] 1 Department of Applied Science and Technology, Politecnico di Torino, Torino, 10129, Italy 2 Laboratory for Bioinspired, Bionic, Nano, Meta Materials and Mechanics, Department of Civil…
Wouter Jansen, Jan Steckel
Echolocation is the prime sensing modality for many species of bats, who show the intricate ability to perform a plethora of tasks in complex and unstructured environments. Understanding this exceptional feat of sensorimotor interaction is a key aspect into building more robust and performant man-made sonar sensors. In…
Ravi Umadi
Accurate three-dimensional localisation of ultrasonic bat calls is essential for advancing behavioural and ecological research. I present a comprehensive, open-source simulation framework-Array WAH-for designing, evaluating, and optimising microphone arrays tailored to bioacoustic tracking. The tool incorporates…
Miyoko Tsumaki, Yu Teshima, Takao Tsuchiya, Kaoru Ashihara + 2 more
Bats use a sophisticated ultrasonic sensing method called echolocation to recognize the environment. Recently, it has been reported that normal sight participants with no prior experience in echolocation can improve their ability to perceive the spatial layout of various environments through training to hear echoes…
Léna de Framond, Thejasvi Beleyur, Daniel Lewanzik, Holger R. Goerlitz
'Holger R. Goerlitz'] Title: ABSTRACT Echolocating bats use ultrasound for orientation and prey capture in darkness. Ultrasound is strongly attenuated in air. Consequently, aerial-hawking bats generally emit very intense echolocation calls to maximize detection range. However, call levels vary more than tenfold (>20…
Livio Oboti, Federico Pedraja, Marie Ritter, Marlena Lohse + 2 more
Since the pioneering work by Moeller, Szabo and Bullock, weakly electric fish have been widely used as a model to approach the study of both spatial and social cognitive abilities in a vertebrate taxon typically less approachable than mammals or other terrestrial vertebrates. Through their electric organ, weakly…
Omer Mazar, Yossi Yovel
Bats face a complex navigation challenge when emerging from densely populated roosts, where vast numbers take off at once in dark, confined spaces. Each bat must avoid collisions with walls and conspecifics while locating the exit, all amidst overlapping acoustic signals. This crowded environment creates the risk of…
Sefawe, Maatla, Ganti, Sravya + 8 more
Effective monitoring of mobile animal populations is crucial for ecological research, wildlife management, and agricultural applications. Monitoring of bats specifically can help understand the spread of disease as well as shine light on bat migration patterns, population dynamics, and the impacts of environmental…
Authors not listed
Nondestructive ultrasonic testing is finding increasing use in battery science. We provide instructions and software for the development of a low cost, modular, and easy to use scanning acoustic microscope. Basic principles of ultrasonic testing are discussed with particular attention to its application for operando…
Alessandro Carlini, Camille Bordeau, Maxime Ambard
Auditory localization is a fundamental ability that allows to perceive the spatial location of a sound source in the environment. The present work aims to provide a comprehensive overview of the mechanisms and acoustic cues used by the human perceptual system to achieve such accurate auditory localization. Acoustic…