Document Detail


Songbird frequency selectivity and temporal resolution vary with sex and season.
MedLine Citation:
PMID:  23193125     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Many species of songbirds exhibit dramatic seasonal variation in song output. Recent evidence suggests that seasonal changes in auditory processing are coincident with seasonal variation in vocal output. Here, we show, for the first time, that frequency selectivity and temporal resolution of the songbird auditory periphery change seasonally and in a sex-specific manner. Male and female house sparrows (Passer domesticus) did not differ in their frequency sensitivity during the non-breeding season, nor did they differ in their temporal resolution. By contrast, female house sparrows showed enhanced frequency selectivity during the breeding season, which was matched by a concomitant reduction of temporal resolution. However, males failed to show seasonal plasticity in either of these auditory properties. We discuss potential mechanisms generating these seasonal patterns and the implications of sex-specific seasonal changes in auditory processing for vocal communication.
Authors:
Megan D Gall; Therese S Salameh; Jeffrey R Lucas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Proceedings. Biological sciences / The Royal Society     Volume:  280     ISSN:  1471-2954     ISO Abbreviation:  Proc. Biol. Sci.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-11-29     Completed Date:  2013-05-06     Revised Date:  2014-01-23    
Medline Journal Info:
Nlm Unique ID:  101245157     Medline TA:  Proc Biol Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  20122296     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation
Analysis of Variance
Animals
Auditory Perception / physiology*
Enzyme-Linked Immunosorbent Assay
Estradiol / blood
Evoked Potentials, Auditory / physiology
Female
Indiana
Male
Seasons*
Sex Factors
Sparrows / physiology*
Testosterone / blood
Time Factors
Vocalization, Animal / physiology*
Chemical
Reg. No./Substance:
3XMK78S47O/Testosterone; 4TI98Z838E/Estradiol
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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