Hormonal Modulation of Singing: Hormonal Modulation of the Songbird Brain and Singing Behavior

@article{Harding2004HormonalMO,
  title={Hormonal Modulation of Singing: Hormonal Modulation of the Songbird Brain and Singing Behavior},
  author={Cheryl F. Harding},
  journal={Annals of the New York Academy of Sciences},
  year={2004},
  volume={1016}
}
  • C. Harding
  • Published 1 June 2004
  • Biology, Medicine
  • Annals of the New York Academy of Sciences
Abstract: During the past three decades research on the hormonal control of singing has fundamentally altered our basic concepts about how hormones modulate brain function and activate behavior. Exciting discoveries first documented in songbird brains have since been documented in a wide variety of vertebrate species, including humans. Circulating hormones organize sexual dimorphisms in brain structure during development, activate changes in brain structure during adulthood, and modulate the… Expand
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Differential effects of global versus local testosterone on singing behavior and its underlying neural substrate
TLDR
POM is a key site where T acts to activate copulation and increase song rate, an appetitive sexual behavior in songbirds, but T action in other areas of the brain or periphery is required to enhance the quality of song as well as regulate context-specific vocalizations. Expand
Steroid Hormones Act Transsynaptically within the Forebrain to Regulate Neuronal Phenotype and Song Stereotypy
TLDR
It is found that ARs and ERs in the song-control nucleus HVC mediate systemic testosterone-induced changes in song stereotypy but not rate, part of a concerted change in key premotor nuclei, enabling stereotyped song. Expand
Testosterone and social context affect singing behavior but not song control region volumes in adult male songbirds in the fall
TLDR
The data suggest that photoperiodic condition and social context may modulate the effects of steroids on SCRs and singing behavior. Expand
Social context affects testosterone-induced singing and the volume of song control nuclei in male canaries (Serinus canaria).
TLDR
The effects of T on singing rate and on the volume of the song control nuclei are modulated by the social environment, including the presence/absence of a potential mate and dominance status among males. Expand
Testosterone‐induced neuroendocrine changes in the medial preoptic area precede song activation and plasticity in song control nuclei of female canaries
TLDR
Although testosterone increased the number of newborn neurons in HVC rapidly, it is unlikely that these new neurons affect singing behavior before they mature and integrate into functional circuits, and rapid action of testosterone in POM supports its proposed role in controlling singing motivation. Expand
A Neuroethological Approach to Song Behavior and Perception in European Starlings: Interrelationships Among Testosterone, Neuroanatomy, Immediate Early Gene Expression, and Immune Function
TLDR
This chapter illustrates how by studying a single species from multiple viewpoints one can start to make connections among the major physiological communications systems—namely, the nervous system, the endocrine system, and the immune system. Expand
Co-localization patterns of neurotensin receptor 1 and tyrosine hydroxylase in brain regions involved in motivation and social behavior in male European starlings
TLDR
The hypothesis that interactions between NTR1 and dopamine in the ventral tegmental area may modulate vocalizations is supported, but it is suggested that testosterone- or photoperiod-induced changes in N TR1/TH co-localization do not underlie seasonally-appropriate adjustment of communication. Expand
Sex hormone influence on human infants' sound characteristics: melody in spontaneous crying
TLDR
It is suggested that oestradiol may have effects on the development and function of the auditory–vocal system in human infants that are as powerful as those in vocal-learning animals. Expand
Hormonal acceleration of song development illuminates motor control mechanism in canaries
TLDR
This research shows that the known effect of testosterone on the neural circuits gives rise to the stereotyped categories of respiratory motor gestures in canaries, and all previously identified categories of adult song were observed. Expand
Reversing song behavior phenotype: Testosterone driven induction of singing and measures of song quality in adult male and female canaries (Serinus canaria).
TLDR
Compared the effects of increasing doses of T on singing and song control nuclei volumes in adult male and female American Singer canaries exposed to identical environmental conditions, testosterone was not equally effective in increasing singing activity in both males and females. Expand
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