[1] | Tramontin AD, Brenowitz EA (2000) Seasonal plasticity in the adult brain. Trends Neurosci 23: 251–258.
|
[2] | Kirn J, O’loughlin B, Kasparian S, Nottebohm F (1994) Cell death and neuronal recruitment in the high vocal center of adult male canaries are temporally related to changes in song. Proc Natl Acad Sci U S A 91: 7844–7848.
|
[3] | Louissaint A Jr, Rao S, Leventhal C, Goldman SA (2002) Coordinated interaction of neurogenesis and angiogenesis in the adult songbird brain. Neuron 34: 945–960.
|
[4] | Kafitz KW, Güttinger HR, Müller CM (1999) Seasonal changes in astrocytes parallel neuronal plasticity in the song control area HVc of the canary. Glia 27: 88–100.
|
[5] | Smith GT, Brenowitz EA, Beecher MD, Wingfield JC (1997) Seasonal changes in testosterone, neural attributes of song control nuclei, and song structure in wild songbirds. J Neurosci 17: 6001–6010.
|
[6] | Meitzen J, Perkel DJ, Brenowitz EA (2007) Seasonal changes in intrinsic electrophysiological activity of song control neurons in wild song sparrows. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 193: 677–683.
|
[7] | Bernard DJ, Ball GF (1997) Photoperiodic condition modulates the effects of testosterone on song control nuclei volumes in male European starlings. Gen Comp Endocrinol 105: 276–283.
|
[8] | Gulledge CC, Deviche P (1997) Androgen control of vocal control region volumes in a wild migratory songbird (Junco hyemalis) is region and possibly age dependent. J Neurobiol 32: 391–402.
|
[9] | Tramontin AD, Wingfield JC, Brenowitz EA (2003) Androgens and estrogens induce seasonal-like growth of song nuclei in the adult songbird brain. J Neurobiol 57: 130–140.
|
[10] | Schlinger BA (1997) Sex steroids and their actions on the birdsong system. J Neurobiol 33: 619–631.
|
[11] | Russell DW, Wilson JD (1994) Steroid 5 alpha-reductase: two genes/two enzymes. Annu Rev Biochem 63: 25–61.
|
[12] | Riters LV, Baillien M, Eens M, Pinxten R, Foidart A, et al. (2001) Seasonal variation in androgen-metabolizing enzymes in the diencephalon and telencephalon of the male European starling (Sturnus vulgaris). J Neuroendocrinol 13: 985–997.
|
[13] | Metzdorf R, Gahr M, Fusani L (1999) Distribution of aromatase, estrogen receptor, and androgen receptor mRNA in the forebrain of songbirds and nonsongbirds. J Comp Neurol 407: 115–129.
|
[14] | Ball GF, Bernard DJ, Foidart A, Lakaye B, Balthazart J (1999) Steroid sensitive sites in the avian brain: does the distribution of the estrogen receptor alpha and beta types provide insight into their function? Brain Behav Evol 54: 28–40.
|
[15] | Devoogd T, Nottebohm F (1981) Gonadal hormones induce dendritic growth in the adult avian brain. Science 214: 202–204.
|
[16] | Yamamura T, Barker JM, Balthazart J, Ball GF (2011) Androgens and estrogens synergistically regulate the expression of doublecortin and enhance neuronal recruitment in the song system of adult female canaries. J Neurosci 31: 9649–9657.
|
[17] | Hidalgo A, Barami K, Iversen K, Goldman SA (1995) Estrogens and non-estrogenic ovarian influences combine to promote the recruitment and decrease the turnover of new neurons in the adult female canary brain. J Neurobiol 27: 470–487.
|
[18] | Soma KK, Tramontin AD, Featherstone J, Brenowitz EA (2003) Estrogen contributes to seasonal plasticity of the adult avian song control system. J Neurobiol 58: 413–422.
|
[19] | Newman AEM, Soma KK (2009) Corticosterone and dehydroepiandrosterone in songbird plasma and brain: effects of season and acute stress. Eur J Neurosci 29: 1905–1914.
|
[20] | Schlinger BA, Arnold AP (1992) Circulating estrogens in a male songbird originate in the brain. Proc Natl Acad Sci U S A 89: 7650–7653.
|
[21] | Fair JM, Paul E, Jones J (2010) Guidelines to the use of wild birds in research. Washington, DC: Ornithological Council.
|
[22] | Dawson A, Goldsmith AR (1983) Plasma prolactin and gonadotrophins during gonadal development and the onset of photorefractoriness in male and female starlings (Sturnus vulgaris) on artificial photoperiods. J Endocrinol 97: 253–260.
|
[23] | Kirn JR, Fishman Y, Sasportas K, Alvarez-Buylla A, Nottebohm F (1999) Fate of new neurons in adult canary high vocal center during the first 30 days after their formation. J Comp Neurol 411: 487–494.
|
[24] | Absil P, Pinxten R, Balthazart J, Eens M (2003) Effect of age and testosterone on autumnal neurogenesis in male European starlings (Sturnus vulgaris). Behav Brain Res 143: 15–30.
|
[25] | Mullen RJ, Buck CR, Smith AM (1992) NeuN, a neuronal specific nuclear protein in vertebrates. Development 116: 201–211.
|
[26] | Newman AEM, MacDougall-Shackleton SA, An Y-S, Kriengwatana B, Soma KK (2010) Corticosterone and dehydroepiandrosterone have opposing effects on adult neuroplasticity in the avian song control system. J Comp Neurol 518: 3662–3678.
|
[27] | Boseret G, Ball GF, Balthazart J (2007) The microtubule-associated protein doublecortin is broadly expressed in the telencephalon of adult canaries. J Chem Neuroanat 33: 140–154.
|
[28] | Balthazart J, Boseret G, Konkle ATM, Hurley LL, Ball GF (2008) Doublecortin as a marker of adult neuroplasticity in the canary song control nucleus HVC. Eur J Neurosci 27: 801–817.
|
[29] | Thompson CK, Brenowitz EA (2005) Seasonal change in neuron size and spacing but not neuronal recruitment in a basal ganglia nucleus in the avian song control system. J Comp Neurol 481: 276–283.
|
[30] | Bernard DJ, Ball GF (1995) Two histological markers reveal a similar photoperiodic difference in the volume of the high vocal center in male European starlings. J Comp Neurol 360: 726–734.
|
[31] | Wade J, Buhlman L (2000) Lateralization and effects of adult androgen in a sexually dimorphic neuromuscular system controlling song in zebra finches. J Comp Neurol 426: 154–164.
|
[32] | Chen TT, Huang CC, Lee TY, Lin KJ, Chang CC, et al. (2010) Effect of caponization and exogenous androgen implantation on muscle characteristics of male chickens. Poult Sci 89: 558–563.
|
[33] | Stevenson TJ, Bentley GE, Ubuka T, Arckens L, Hampson E, et al. (2008) Effects of social cues on GnRH-I, GnRH-II, and reproductive physiology in female house sparrows (Passer domesticus). Gen Comp Endocrinol 156: 385–394.
|
[34] | Bernard DJ, Wilson FE, Ball GF (1997) Testis-dependent and -independent effects of photoperiod on volumes of song control nuclei in American tree sparrows (Spizella arborea). Brain Res 760: 163–169.
|
[35] | Fusani L, Day LB, Canoine V, Reinemann D, Hernandez E, et al. (2007) Androgen and the lebaorate courtship behavior of a tropical lekking bird. Horm Behav 51: 62–68.
|
[36] | Bentley GE (2003) Melatonin receptor density in Area X of European starlings is correlated with reproductive state and is unaffected by plasma melatonin concentration. Gen Comp Endocrinol 134: 187–192.
|
[37] | Brenowitz EA, Lent K (2001) Afferent input is necessary for seasonal growth and maintenance of adult avian song control circuits. J Neurosci 21: 2320–2329.
|
[38] | Brenowitz EA, Lent K (2002) Act locally and think globally: intracerebral testosterone implants induce seasonal-like growth of adult avian song control circuits. Proc Natl Acad Sci U S A 99: 12421–12426.
|
[39] | Vellema M, Van Der Linden A, Gahr M (2010) Area-specific migration and recruitment of new neurons in the adult songbird brain. J Comp Neurol 518: 1442–1459.
|
[40] | Rasika S, Nottebohm F, Alvarez-Buylla A (1994) Testosterone increases the recruitment and/or survival of new high vocal center neurons in adult female canaries. Proc Natl Acad Sci U S A 91: 7854–7858.
|
[41] | Rasika S, Alvarez-Buylla A, Nottebohm F (1999) BDNF mediates the effects of testosterone on the survival of new neurons in an adult brain. Neuron 22: 53–62.
|
[42] | MacDougall-Shackleton SA, Hernandez AM, Valyear KF, Clark AP (2003) Photostimulation induces rapid growth of song-control brain regions in male and female chickadees (Poecile atricapilla). Neurosci Lett 340: 165–168.
|
[43] | MacDougall-Shackleton SA, Deviche PJ, Crain RD, Ball GF, Hahn TP (2001) Seasonal changes in brain GnRH immunoreactivity and song-control nuclei volumes in an opportunistically breeding songbird. Brain Behav Evol 58: 38–48.
|
[44] | Nordeen EJ, Nordeen KW (1988) Sex and regional differences in the incorporation of neurons born during song learning in zebra finches. J Neurosci 8: 2869–2874.
|
[45] | Kirn JR, DeVoogd TJ (1989) Genesis and death of vocal control neurons during sexual differentiation in the zebra finch. J Neurosci 9: 3176–3187.
|
[46] | Nottebohm F (1981) A brain for all seasons: cyclical anatomical changes in song control nuclei of the canary brain. Science 214: 1368–1370.
|
[47] | Riebel K (2003) The ‘mute’ sex revisited: vocal production and perception learning in female songbirds. Adv Study Behav 33: 49–86.
|
[48] | Pavlova DZ, Pinxten R, Eens M (2007) Seasonal singing patterns and individual consistency in song activity in female European starlings (Sturnus vulgaris). Behaviour 144: 663–680.
|
[49] | Gentner TQ, Hulse SH (2000) Perceptual classification based on the component structure of song in European starlings. J Acoust Soc Am 107: 3369–3381.
|
[50] | Hall ZJ, MacDougall-Shackleton SA, Osorio-Beristain M, Murphy TG (2010) Male bias in the song control system despite female bias in song rate in streak-backed orioles (Icterus pustulatus). Brain Behav Evol 76: 168–175.
|
[51] | Tramontin AD, Smith GT, Breuner CW, Brenowitz EA (1998) Seasonal plasticity and sexual dimorphism in the avian song control system: stereological measurement of neuron density and number. J Comp Neurol 396: 186–192.
|
[52] | Schmidt KL, Pradhan DS, Shah AH, Charlier TD, Chin EH, et al. (2008) Neurosteroids, immunosteroids, and the Balkanization of endocrinology. Gen Comp Endocrinol 157: 266–274.
|
[53] | London SE, Remage-Healey L, Schlinger BA (2009) Neurosteroid production in the songbird brain: a re-evaluation of core principles. Front Neuroendocrinol 30: 302–314.
|
[54] | Grisham W, Park SH, Hsia JK, Kim C, Leung MC, et al. (2007) Effects of long-term fluatmide treatment during development in zebra finches. Neurosci Lett 418: 92–96.
|
[55] | Soma KK, Sullivan K, Wingfield J (1999) Combined aromaste inhibitor and antiandrogen treatment decreases territorial aggression in a wild songbird during the nonbreeding season. Gen Comp Endocrinol 115: 442–453.
|
[56] | Ball GF, Auger CJ, Bernard DJ, Charlier TD, Sartor JJ, et al. (2004) Seasonal plasticity in the song control system: multiple brain sites of steroid hormone action and the importance of variation in song behavior. Ann N Y Acad Sci 1016: 586–610.
|