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The evolution of the Lombard effect: 100 years of psychoacoustic research

The evolution of the Lombard effect: 100 years of psychoacoustic research AbstractOn the occasion of the centenary of the discovery of the Lombard effect, wereview the literature on noise-dependent regulation of vocal amplitude inhumans and other animals. The article addresses the scientific and thebiological history of the Lombard effect: first, it sketches the evolutionof the study of the Lombard effect, and second it reflects on the biologicalevolution of the effect itself. By comparing the findings from anurans,birds and mammals, we try to trace back the phylogenetic origins of thisbasic vocal mechanism for acoustic communication in noise. The currentevidence suggests two alternative parsimonious hypotheses: either theLombard effect is the outcome of a convergent evolution in birds and mammalsor it may be a synapomorphy of all amniotes. If the latter is true, then theLombard effect would have evolved to maintain vocal communication in thepresence of noise more than 300 million years ago. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

The evolution of the Lombard effect: 100 years of psychoacoustic research

Behaviour , Volume 148 (11-13): 26 – Jan 1, 2011

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
DOI
10.1163/000579511X605759
Publisher site
See Article on Publisher Site

Abstract

AbstractOn the occasion of the centenary of the discovery of the Lombard effect, wereview the literature on noise-dependent regulation of vocal amplitude inhumans and other animals. The article addresses the scientific and thebiological history of the Lombard effect: first, it sketches the evolutionof the study of the Lombard effect, and second it reflects on the biologicalevolution of the effect itself. By comparing the findings from anurans,birds and mammals, we try to trace back the phylogenetic origins of thisbasic vocal mechanism for acoustic communication in noise. The currentevidence suggests two alternative parsimonious hypotheses: either theLombard effect is the outcome of a convergent evolution in birds and mammalsor it may be a synapomorphy of all amniotes. If the latter is true, then theLombard effect would have evolved to maintain vocal communication in thepresence of noise more than 300 million years ago.

Journal

BehaviourBrill

Published: Jan 1, 2011

Keywords: ACOUSTIC COMMUNICATION; LOMBARD EFFECT; SIGNAL AMPLITUDE; VOCAL PLASTICITY; NOISE; AUDITORY FEEDBACK

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