scholarly journals Seasonal-like growth and regression of the avian song control system: Neural and behavioral plasticity in adult male Gambel’s white-crowned sparrows

2008 ◽  
Vol 157 (3) ◽  
pp. 259-265 ◽  
Author(s):  
John Meitzen ◽  
Christopher K. Thompson
Keyword(s):  
Control System ◽  
Adult Male ◽  
Behavioral Plasticity ◽  
Song Control System ◽  
Song Control ◽  
Avian Song

scholarly journals Use of PG-21 immunocytochemistry to detect androgen receptors in the songbird brain.

1996 ◽  
Vol 44 (9) ◽  
pp. 1075-1080 ◽  
Author(s):  
G T Smith ◽  
E A Brenowitz ◽  
G S Prins
Keyword(s):  
Androgen Receptor ◽  
Neural Plasticity ◽  
Behavioral Plasticity ◽  
Androgen Receptors ◽  
Brain Regions ◽  
Cell Nuclei ◽  
Low Concentrations ◽  
Song Control System ◽  
Song Control ◽  
Avian Song

The avian song control system is an excellent model in which to study the effects of gonadal steroid hormones on neural and behavioral plasticity. Several of the brain regions that control song behavior concentrate androgens and/or estrogens. Investigations of the distribution and regulation of androgen receptors have been limited by the lack of a reliable immunocytochemical method to detect androgen receptors in the songbird brain. We describe a protocol by which the PG-21 polygonal antibody to the rat androgen receptor can be used to label androgen receptor-containing cells in the songbird brain. By treating songbirds of several species with testosterone 90 min before sacrifice and by using relatively low concentrations (0.5 0.75 microg/ml) of PG-21 antibody to reduce nonspecific background staining, we were able to obtain strong specific labeling of cell nuclei in androgen-sensitive brain regions. This technique will facilitate the study of the role of androgens in mediating neural plasticity in the avian brain. Testosterone pretreatment may also facilitate the use of this antibody to label androgen receptors in tissues from a wide array of nonmammalian species.

Corticosterone and dehydroepiandrosterone have opposing effects on adult neuroplasticity in the avian song control system

2010 ◽  
Vol 518 (18) ◽  
pp. 3662-3678 ◽  
Author(s):  
Amy E.M. Newman ◽  
Scott A. MacDougall-Shackleton ◽  
Yong-Seok An ◽  
Buddhamas Kriengwatana ◽  
Kiran K. Soma
Keyword(s):  
Control System ◽  
Song Control System ◽  
Song Control ◽  
Opposing Effects ◽  
Avian Song

scholarly journals Postsynaptic neural activity regulates neuronal addition in the adult avian song control system

2013 ◽  
Vol 110 (41) ◽  
pp. 16640-16644 ◽  
Author(s):  
T. A. Larson ◽  
T.-W. Wang ◽  
S. D. Gale ◽  
K. E. Miller ◽  
N. M. Thatra ◽  
...  
Keyword(s):  
Control System ◽  
Neural Activity ◽  
Song Control System ◽  
Song Control ◽  
Avian Song

Estrogen contributes to seasonal plasticity of the adult avian song control system

2004 ◽  
Vol 58 (3) ◽  
pp. 413-422 ◽  
Author(s):  
Kiran K. Soma ◽  
Anthony D. Tramontin ◽  
Joy Featherstone ◽  
Eliot A. Brenowitz
Keyword(s):  
Control System ◽  
Seasonal Plasticity ◽  
Song Control System ◽  
Song Control ◽  
Avian Song
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