Results 231 to 240 of about 21,078 (266)
Some of the next articles are maybe not open access.
The Oilbird: Hearing and Echolocation
Science, 1979Oilbirds can navigate in total darkness by echolocation. The sound energy in their sonar cries is unevenly distributed over the range from about 1 to 15 kilohertz, with a dominant frequency range of 1.5 to 2.5 kilohertz. This corresponds to the most sensitive range of their hearing as determined by neurophysiological methods.
Konishi, Masakazu, Knudsen, Eric I.
openaire +4 more sources
Reinforcement of the larynx and trachea in echolocating and non‐echolocating bats
Journal of Anatomy, 2020AbstractThe synchronization of flight mechanics with respiration and echolocation call emission by bats, while economizing these behaviors, presumably puts compressive loads on the cartilaginous rings that hold open the respiratory tract. Previous work has shown that during postnatal development of Artibeus jamaicensis (Phyllostomidae), the onset of ...
openaire +4 more sources
Psychophysics of Human Echolocation [PDF]
, 2013 The 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 ...
Daniel Kish +6 more
openaire +2 more sources
Neurobiology of echolocation in bats
Current Opinion in Neurobiology, 2003Echolocating bats (sub-order: Microchiroptera) form a highly successful group of animals, comprising approximately 700 species and an estimated 25% of living mammals. Many echolocating bats are nocturnal predators that have evolved a biological sonar system to orient and forage in three-dimensional space.
Shiva R Sinha, Cynthia F. Moss
openaire +3 more sources
Blindness in echolocating bats
Mammalia, 2018Abstract Vision in echolocating bats works complementary to their echolocation signals and is especially important in long-range orientation. Contrary to previous predictions, we report here the first case of blindness and ocular anomalies in healthy adult echolocating bats.
Emmanuel Messias Vilar +3 more
openaire +2 more sources
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.
Sabine Schmidt, Gerhard Neuweiler
openaire +3 more sources
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.
Sabine Schmidt, Gerhard Neuweiler
openaire +3 more sources
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
openaire +3 more sources
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
openaire +3 more sources
2014
Bats and toothed whales both emit ultrasonic pulses and listen for returning echoes in a process known as echolocation. However, their biosonars are the results of independent evolution under conditions of poor lighting in air and water that offer very different conditions for production, transmission, and reflection of ultrasound.
Madsen, Professor Peter Teglberg +1 more
openaire +3 more sources
Bats and toothed whales both emit ultrasonic pulses and listen for returning echoes in a process known as echolocation. However, their biosonars are the results of independent evolution under conditions of poor lighting in air and water that offer very different conditions for production, transmission, and reflection of ultrasound.
Madsen, Professor Peter Teglberg +1 more
openaire +3 more sources
Duration tuning in the auditory midbrain of echolocating and non-echolocating vertebrates
Journal of Comparative Physiology A, 2011(Uploaded by Plazi for the Bat Literature Project) Neurons tuned for stimulus duration were first discovered in the auditory midbrain of frogs. Durationtuned neurons (DTNs) have since been reported from the central auditory system of both echolocating and nonecholocating mammals, and from the central visual system of cats.
Paul A. Faure +2 more
openaire +3 more sources
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
Daniel Rowan +5 more
openaire +3 more sources