Results 31 to 40 of about 1,322 (144)

Neural Processing of Naturalistic Echolocation Signals in Bats

open access: yesFrontiers in Neural Circuits, 2022
Echolocation behavior, a navigation strategy based on acoustic signals, allows scientists to explore neural processing of behaviorally relevant stimuli.
M. Jerome Beetz, Julio C. Hechavarría
doaj   +1 more source

Wingtip folds and ripples on saturniid moths create decoy echoes against bat biosonar

open access: yes, 2021
Sensory coevolution has equipped certain moth species with passive acoustic defenses to counter predation by echolocating bats.1,2 Some large silkmoths (Saturniidae) possess curved and twisted biosonar decoys at the tip of elongated hindwing tails.3,4 ...
Harris, Brogan J   +10 more
core   +1 more source

Finite element simulation of broadband biosonar signal propagation in the near- and far-field of an echolocating Atlantic bottlenose dolphin (Tursiops truncatus) [PDF]

open access: yes, 2018
© 2018 Author(s). Bottlenose dolphins project broadband echolocation signals for detecting and locating prey and predators, and for spatial orientation. There are many unknowns concerning the specifics of biosonar signal production and propagation in the
Ketten, Darlene   +11 more
core   +2 more sources

Spike Train Similarity Space (SSIMS) Method Detects Effects of Obstacle Proximity and Experience on Temporal Patterning of Bat Biosonar

open access: yesFrontiers in Behavioral Neuroscience, 2018
Bats emit biosonar pulses in complex temporal patterns that change to accommodate dynamic surroundings. Efforts to quantify these patterns have included analyses of inter-pulse intervals, sonar sound groups, and changes in individual signal parameters ...
Alyssa W. Accomando   +3 more
doaj   +1 more source

The Sonar Model for Humpback Whale Song Revised

open access: yesFrontiers in Psychology, 2018
Why do humpback whales sing? This paper considers the hypothesis that humpback whales may use song for long range sonar. Given the vocal and social behavior of humpback whales, in several cases it is not apparent how they monitor the movements of distant
Eduardo Mercado III, Eduardo Mercado III
doaj   +1 more source

Numerical study of dynamic noseleaf models in greater horseshoe bats, Rhinolophus ferrumequinum [PDF]

open access: yesMATEC Web of Conferences, 2019
Echolocating greater horseshoe bats (Rhinolophus ferrumequinum) emit biosonar pulses through nostril. The nostrilis surrounded by sophisticated and delicate appendages, i.e. noseleaf.
Gao Li   +5 more
doaj   +1 more source

Adaptive Echolocation and Flight Behaviors in Bats Can Inspire Technology Innovations for Sonar Tracking and Interception

open access: yesSensors, 2020
Target tracking and interception in a dynamic world proves to be a fundamental challenge faced by both animals and artificial systems. To track moving objects under natural conditions, agents must employ strategies to mitigate interference and conditions
Clarice Anna Diebold   +2 more
doaj   +1 more source

Biosonar emission characteristics and beam control of odontocetes

open access: yes, 2020
Odontocetes have evolved for millions of years to own a unique echolocation system. The exceptional performance of odontocetes echolocation system can provide reference to artificial sonar systems, acoustic metamaterials and sound control designs ...
Chong Wei (23290120)   +4 more
core   +2 more sources

A biomimetic projector with high subwavelength directivity based on dolphin biosonar

open access: yes, 2014
Based on computed tomography of a Yangtze finless porpoise's biosonar system, a biomimetic structure was designed to include air cavity, gradient-index material, and steel outer-structure mimicking air sacs, melon, and skull, respectively.
Zhang, Yu   +6 more
core   +2 more sources

Size constancy in bat biosonar? [PDF]

open access: yes, 2013
Perception and encoding of object size is an important feature of sensory systems. In the visual system object size is encoded by the visual angle (visual aperture) on the retina, but the aperture depends on the distance of the object. As object distance
Heinrich, Melina   +7 more
core   +2 more sources

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