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Titolo:
CORRELATED AMPLITUDE FLUCTUATIONS OF SPONTANEOUS OTOACOUSTIC EMISSIONS IN 6 LIZARD SPECIES
Autore:
VANDIJK P; MANLEY GA; GALLO L;
Indirizzi:
UNIV GRONINGEN HOSP,DEPT OTORHINOLARYNGOL,POB 30-001 NL-9700 RB GRONINGEN NETHERLANDS TECH UNIV MUNICH,INST ZOOL D-85748 GARCHING GERMANY
Titolo Testata:
The Journal of the Acoustical Society of America
fascicolo: 3, volume: 104, anno: 1998,
parte:, 1
pagine: 1559 - 1564
SICI:
0001-4966(1998)104:3<1559:CAFOSO>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXTERNAL TONES; FREQUENCY FLUCTUATIONS; RELAXATION DYNAMICS; ACOUSTIC EMISSIONS; BOBTAIL LIZARD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
P. Vandijk et al., "CORRELATED AMPLITUDE FLUCTUATIONS OF SPONTANEOUS OTOACOUSTIC EMISSIONS IN 6 LIZARD SPECIES", The Journal of the Acoustical Society of America, 104(3), 1998, pp. 1559-1564

Abstract

Spontaneous otoacoustic emissions were recorded from 17 lizard ears (six species: Gerrhosaurus major, Iguana iguana, Basiliscus vittatus, Tupinambis teguixin, Varanus exanthematicus, and Cordylus tropidosternum), The spectrum of each recording contained multiple spectral peaks. For each peak, the envelope cross-correlation R(tau) With all other peaks from the same ear was computed. Of the total of 346 emission peak pairs, 58 (17%) showed a significant correlation. Thus like in humans,multiple emission peaks in lizards frequently interact. In the lizards, the cross-correlation was positive in 30 cases, and negative in 28 cases. The cross-correlation function peaked at either a positive (tau(peak)>0) or a negative (tau(peak)<0) delay time. Peak delays ranged from -3.7 ms to 6.2 ms with an average 0.2 ms (s.d. 1.8 ms). The range of observed peak delay values differs from that in human [average tau(peak) = 110 ms (s.d. 22.1 ms)]. (C) 1998 Acoustical Society of America. [S0001-4966(98)01209-X]

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Documento generato il 30/11/20 alle ore 02:43:26