Results 131 to 140 of about 4,726 (165)
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Resonance, 1996
Bats are capable of avoiding obstacles that they encounter, even in complete darkness. This is because they emit ultrasound (high frequency sound) and analyse the echo produced when the sound hits objects on their path. This article describes the hunting flight of bats and how echolocation is useful in prey capture.
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Bats are capable of avoiding obstacles that they encounter, even in complete darkness. This is because they emit ultrasound (high frequency sound) and analyse the echo produced when the sound hits objects on their path. This article describes the hunting flight of bats and how echolocation is useful in prey capture.
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Nature, 2010
Echolocation of bats is a fascinating topic with an ongoing controversy regarding the signal processing that bats perform on the echo. Veselka et al. found that bats that use the larynx for producing the echolocating ultrasound have a stylohyal bone that connects the larynx to the auditory bulla. I propose that the stylohyal bone is used for heterodyne
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Echolocation of bats is a fascinating topic with an ongoing controversy regarding the signal processing that bats perform on the echo. Veselka et al. found that bats that use the larynx for producing the echolocating ultrasound have a stylohyal bone that connects the larynx to the auditory bulla. I propose that the stylohyal bone is used for heterodyne
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Current Opinion in Neurobiology, 1993
Abstract In bat audition, major advances have been made concerning the frequency tuning in the bats' cochlea, cortical maps and the related subcortical echo information processing, and the perceptual mechanisms creating auditory images.
G, Neuweiler, S, Schmidt
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Abstract In bat audition, major advances have been made concerning the frequency tuning in the bats' cochlea, cortical maps and the related subcortical echo information processing, and the perceptual mechanisms creating auditory images.
G, Neuweiler, S, Schmidt
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Why pinnipeds don’t echolocate
The Journal of the Acoustical Society of America, 2000Odontocete cetaceans have evolved a highly advanced system of active biosonar. It has been hypothesized that other groups of marine animals, such as the pinnipeds, possess analogous sound production, reception, and processing mechanisms that allow for underwater orientation using active echolocation.
R J, Schusterman +4 more
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Investigations of mammalian echolocation
2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009Active echolocation is a sensory modality possessed by a variety of mammals and is used for the identification, classification and localization of objects. A multi stage model of the bat echolocation process has been used with recordings of rotated disks to plot frequency spectrums of the signals reaching each of the bats' ears. Recordings from objects
D S, Edwards +5 more
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Propagation of beluga echolocation signals
The Journal of the Acoustical Society of America, 1987The propagation characteristics of high-frequency echolocation signals (peak energies above 100 kHz) of the beluga (Delphinapterus leucas) were measured while the animal performed a target detection task. The whale was trained to station on a bite plate so that its transmission beam could be measured in the vertical and horizontal planes using ...
W W, Au, R H, Penner, C W, Turl
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Psychophysics of Human Echolocation
2013The skills of some blind humans orienting in their environment through the auditory analysis of reflections from self-generated sounds have received only little scientific attention to date. Here we present data from a series of formal psychophysical experiments with sighted subjects trained to evaluate features of a virtual echo-acoustic space ...
Sven, Schörnich +6 more
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