How greater mouse-eared bats deal with ambiguous echoic scenes.

Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
Mariana Laura MelconH-U Schnitzler

Abstract

Echolocating bats have to assign the received echoes to the correct call that generated them. Failing to do so will result in the perception of virtual targets that are positioned where there is no actual target. The assignment of echoes to the emitted calls can be ambiguous especially if the pulse intervals between calls are short and kept constant. Here, we present first evidence that greater mouse-eared bats deal with ambiguity by changing the pulse interval more often, in particular by reducing the number of calls in the terminal group before landing. This strategy separates virtual targets from real ones according to their change in position. Real targets will always remain in a constant position, and virtual targets will jitter back and forth according to the change in the time interval.

References

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Dec 7, 2007·The Journal of Experimental Biology·Mariana L MelcónHans-Ulrich Schnitzler
Nov 11, 2008·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Mariana L MelcónAnnette Denzinger
Mar 27, 2009·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Anthony E PetritesCaroline M DeLong
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Citations

Apr 9, 2011·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Björn M SiemersBenedikt Grothe
Sep 21, 2011·PLoS Biology·Yossi YovelNachum Ulanovsky
Mar 17, 2019·The Journal of Experimental Biology·James A SimmonsUday Shriram
Dec 5, 2016·The Journal of the Acoustical Society of America·Beatrice MaoCynthia F Moss
Jul 8, 2020·Proceedings of the National Academy of Sciences of the United States of America·Chen MingJames A Simmons
Jun 7, 2014·The Journal of Experimental Biology·Sonja SändigAnnette Denzinger

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