PMID: 15237846Jul 9, 2004Paper

The interaction of outgoing echolocation pulses and echoes in the false killer whale's auditory system: evoked-potential study

The Journal of the Acoustical Society of America
Alexander Ya SupinM Breese

Abstract

Brain auditory evoked potentials (AEP) associated with echolocation were recorded in a false killer whale Pseudorca crassidens trained to accept suction-cup EEG electrodes and to detect targets by echolocation. AEP collection was triggered by echolocation pulses transmitted by the animal. The target was a hollow aluminum cylinder of strength of -22 dB at a distance from 1 to 8 m. Each AEP record was obtained by averaging more than 1000 individual records. All the records contained two AEP sets: the first one of a constant latency and a second one with a delay proportional to the distance. The timing of these two AEP sets was interpreted as responses to the transmitted echolocation pulse and echo, respectively. The echo-related AEP, although slightly smaller, was comparable to the outgoing click-related AEP in amplitude, even though at a target distance as far as 8 m the echo intensity was as low as -64 dB relative to the transmitted pulse in front of the head. The amplitude of the echo-related AEP was almost independent of distance, even though variation of target distance from 1 to 8 m influenced the echo intensity by as much as 36 dB.

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Citations

Jun 17, 2010·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Jan 8, 2008·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Aug 1, 2006·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Apr 10, 2009·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Sep 8, 2010·The Journal of the Acoustical Society of America·James J FinneranSam H Ridgway
Nov 4, 2005·The Journal of the Acoustical Society of America·Michelle M L YuenAlexander Ya Supin
Sep 8, 2011·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Sep 18, 2012·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Apr 6, 2007·The Journal of the Acoustical Society of America·Michelle M L YuenStephanie A Vlachos
Jul 24, 2008·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Feb 15, 2007·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Nov 8, 2012·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Alexander Ya Supin, Paul E Nachtigall
Apr 6, 2006·The Journal of the Acoustical Society of America·Kristian BeedholmMarie-Anne Blanchet
Dec 15, 2015·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Paul E NachtigallAude F Pacini
May 23, 2015·The Journal of the Acoustical Society of America·Alexander Ya Supin, Vladimir V Popov
Sep 3, 2016·The Journal of the Acoustical Society of America·Paul E NachtigallRonald A Kastelein
Oct 28, 2017·Integrative Zoology·Paul E NachtigallRonald A Kastelein
Jul 16, 2005·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Mar 31, 2009·The Journal of Experimental Biology·F H JensenP T Madsen
May 21, 2008·The Journal of Experimental Biology·Paul E Nachtigall, Alexander Y Supin
Nov 24, 2012·The Journal of Experimental Biology·Danuta Maria WisniewskaPeter Teglberg Madsen
Jan 7, 2005·The Journal of Experimental Biology·P T MadsenP Tyack

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