Article (Scientific journals)
Male song quality modulates c-Fos expression in the auditory forebrain of the female canary.
Monbureau, Marie; Barker, Jennifer M.; Leboucher, Gerard et al.
2015In Physiology and Behavior, 147, p. 7-15
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Keywords :
Auditory processing; Canary song; Caudomedial mesopallium; Caudomedial nidopallium; Immediate early genes
Abstract :
[en] In canaries, specific phrases of male song (sexy songs, SS) that are difficult to produce are especially attractive for females. Females exposed to SS produce more copulation displays and deposit more testosterone into their eggs than females exposed to non-sexy songs (NS). Increased expression of the immediate early genes c-Fos or zenk (a.k.a. egr-1) has been observed in the auditory forebrain of female songbirds hearing attractive songs. C-Fos immunoreactive (Fos-ir) cell numbers were quantified here in the brain of female canaries that had been collected 30min after they had been exposed for 60min to the playback of SS or NS or control white noise. Fos-ir cell numbers increased in the caudomedial mesopallium (CMM) and caudomedial nidopallium (NCM) of SS birds as compared to controls. Song playback (pooled SS and NS) also tended to increase average Fos-ir cell numbers in the mediobasal hypothalamus (MBH) but this effect did not reach full statistical significance. At the individual level, Fos expression in CMM was correlated with its expression in NCM and in MBH but also with the frequency of calls that females produced in response to the playbacks. These data thus indicate that male songs of different qualities induce a differential metabolic activation of NCM and CMM. The correlation between activation of auditory regions and of the MBH might reflect the link between auditory stimulation and changes in behavior and reproductive physiology.
Disciplines :
Zoology
Neurosciences & behavior
Author, co-author :
Monbureau, Marie
Barker, Jennifer M.
Leboucher, Gerard
Balthazart, Jacques  ;  Université de Liège > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques
Language :
English
Title :
Male song quality modulates c-Fos expression in the auditory forebrain of the female canary.
Publication date :
2015
Journal title :
Physiology and Behavior
ISSN :
0031-9384
eISSN :
1873-507X
Publisher :
Elsevier, New-York, United States - New York
Volume :
147
Pages :
7-15
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2015 Elsevier Inc. All rights reserved.
Available on ORBi :
since 22 May 2015

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