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The 2017 video game Perception places the player in the role of a blind woman who must use echolocation to navigate the environment. [34] In the 2012 film Imagine, the main character teaches echolocation to students at a clinic for the visually impaired. This unconventional method spurs a controversy but helps students explore the world.
The term echolocation was coined by 1944 by the American zoologist Donald Griffin, who, with Robert Galambos, first demonstrated the phenomenon in bats. [1] [2] As Griffin described in his book, [3] the 18th century Italian scientist Lazzaro Spallanzani had, by means of a series of elaborate experiments, concluded that when bats fly at night, they rely on some sense besides vision, but he did ...
Jack Kassewitz, from SpeakDolphin.com, said, "When we discovered that dolphins not exposed to the echolocation experiment could identify objects from recorded dolphin sounds with 92% accuracy, ...
Animal echolocation, non-human animals emitting sound waves and listening to the echo in order to locate objects or navigate. Human echolocation , the use of sound by people to navigate. Sonar ( so und n avigation a nd r anging), the use of sound on water or underwater, to navigate or to locate other watercraft, usually by submarines.
Subsequent experiments lent credence to this hypothesis, identifying four key amino acid distinctions in sonar mammals that likely contribute to their distinctive echolocation features. The confluence of evolutionary analyses and empirical findings provides robust evidence, marking a significant juncture in comprehending the Prestin gene's role ...
In the 1990s experiments were conducted broadcasting clicks to bats performing echolocation tasks on a platform [22] and with neurophysiological methods [23] to demonstrate a plausible mechanism for jamming. The researchers concluded that most tiger moths do not produce enough sound to jam bat sonar.
The melon is structurally part of the nasal apparatus and comprises most of the mass tissue between the blowhole and the tip of the snout. The function of the melon is not completely understood, but scientists believe it is a bioacoustic component, providing a means of focusing sounds used in echolocation and creating a similarity between characteristics of its tissue and the surrounding water ...
The time and sound-pressure pathways converge at the lateral shell of the central nucleus of the inferior colliculus. The lateral shell projects to the external nucleus, where each space-specific neuron responds to acoustic stimuli only if the sound originates from a restricted area in space, i.e. the receptive field of that neuron. These ...
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