Orienting responses and vocalizations produced by microstimulation in the superior colliculus of the echolocating bat, Eptesicus fuscus

Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
Doreen E ValentineCynthia F Moss

Abstract

An echolocating bat actively controls the spatial acoustic information that drives its behavior by directing its head and ears and by modulating the spectro-temporal structure of its outgoing sonar emissions. The superior colliculus may function in the coordination of these orienting components of the bat's echolocation system. To test this hypothesis, chemical and electrical microstimulation experiments were carried out in the superior colliculus of the echolocating bat, Eptesicus fuscus, a species that uses frequency modulated sonar signals. Microstimulation elicited pinna and head movements, similar to those reported in other vertebrate species, and the direction of the evoked behaviors corresponded to the site of stimulation, yielding a map of orienting movements in the superior colliculus. Microstimulation of the bat superior colliculus also elicited sonar vocalizations, a motor behavior specific to the bat's acoustic orientation by echolocation. Electrical stimulation of the adjacent periaqueductal gray, shown to be involved in vocal production in other mammalian species, elicited vocal signals resembling acoustic communication calls of E. fuscus. The control of vocal signals in the bat is an integral part of its acoustic...Continue Reading

Citations

May 12, 2005·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·James H FullardCassandra Guignion
Jun 16, 2006·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Barbara Claas, Jeffrey Dean
Dec 10, 2003·Current Opinion in Neurobiology·Cynthia F Moss, Shiva R Sinha
Jun 20, 2008·Proceedings of the National Academy of Sciences of the United States of America·Nachum Ulanovsky, Cynthia F Moss
Jun 22, 2007·Journal of Neurophysiology·Mark M G WaltonNeeraj J Gandhi
Feb 29, 2008·Journal of Neurophysiology·Mark M G WaltonNeeraj J Gandhi
Jun 20, 2008·Journal of Neurophysiology·Marie E Hemelt, Asaf Keller
Apr 12, 2006·PLoS Biology·Kaushik GhoseCynthia F Moss
Feb 1, 2003·The Journal of the Acoustical Society of America·Arjan M BoonmanGareth Jones
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Jan 18, 2007·Behavioural Brain Research·Thomas Fenzl, Gerd Schuller
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Sep 4, 2016·Current Opinion in Neurobiology·Melville J WohlgemuthCynthia F Moss
Jan 22, 2005·The Journal of the Acoustical Society of America·Rolf Müller
Apr 14, 2018·ELife·Manfred Kössl, Julio Hechavarría
Oct 12, 2005·The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology·Ellen Covey
Jan 18, 2015·Journal of the Association for Research in Otolaryngology : JARO·Shigeyuki KuwadaLaurel H Carney
Feb 23, 2020·The Journal of Comparative Neurology·Ted K DoykosGidon Felsen
May 14, 2016·Journal of Neurophysiology·Daria GenzelPaul R MacNeilage
Sep 9, 2018·Scientific Reports·Dustin BrewtonKhaleel A Razak
Jun 9, 2021·Annual Review of Vision Science·Bonnie Cooper, Robert M McPeek

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