Search Results - "Ball, Gregory F"

The neuroendocrine integration of environmental information, the regulation and action of testosterone and the challenge hypothesis by Ball, Gregory F., Balthazart, Jacques

“…The authors of the original challenge hypothesis proposed influential hypotheses concerning the relationship between testosterone concentrations in the blood…”
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Differential effects of global versus local testosterone on singing behavior and its underlying neural substrate by Alward, Beau A., Balthazart, Jacques, Ball, Gregory F.

“…Steroid hormones regulate multiple but distinct aspects of social behaviors. Testosterone (T) has multiple effects on learned courtship song in that it…”
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Endogenous versus exogenous markers of adult neurogenesis in canaries and other birds: Advantages and disadvantages by Balthazart, Jacques, Ball, Gregory F.

“…ABSTRACT Although the existence of newborn neurons had originally been suggested, but not broadly accepted, based on studies in adult rodent brains, the…”
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Topography in the preoptic region: Differential regulation of appetitive and consummatory male sexual behaviors by Balthazart, Jacques, Ball, Gregory F

“…Abstract Several studies have suggested dissociations between neural circuits underlying the expression of appetitive (e.g., courtship behavior) and…”
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Effects of the depletion of neural progenitors by focal X-ray irradiation on song production and perception in canaries by Chiver, Ioana, dos Santos, Ednei B., Valle, Shelley, Lallemand, François, Cornil, Charlotte A., Ball, Gregory F., Balthazart, Jacques

“…The song control nucleus HVC of songbirds has emerged as a widespread model system to study adult neurogenesis and the factors that modulate the incorporation…”
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Individual variation and the endocrine regulation of behaviour and physiology in birds: a cellular/molecular perspective by Ball, Gregory F, Balthazart, Jacques

“…Investigations of the cellular and molecular mechanisms of physiology and behaviour have generally avoided attempts to explain individual differences. The goal…”
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Sex differences in the response to environmental cues regulating seasonal reproduction in birds by Ball, Gregory F, Ketterson, Ellen D

“…Although it is axiomatic that males and females differ in relation to many aspects of reproduction related to physiology, morphology and behaviour, relatively…”
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Perineuronal nets in HVC and plasticity in male canary song by Cornez, Gilles, Valle, Shelley, dos Santos, Ednei Barros, Chiver, Ioana, Müller, Wendt, Ball, Gregory F, Cornil, Charlotte A, Balthazart, Jacques

“…Songbirds learn their vocalizations during developmental sensitive periods of song memorization and sensorimotor learning. Some seasonal songbirds, called…”
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Seasonal changes of perineuronal nets and song learning in adult canaries (Serinus canaria) by Cornez, Gilles, Collignon, Clémentine, Müller, Wendt, Ball, Gregory F., Cornil, Charlotte A., Balthazart, Jacques

“…•Fife Fancy Canaries show annual cycles in testicular activity and singing behaviour.•Song becomes plastic in the fall and crystallises again in the spring of…”
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Studies of HVC Plasticity in Adult Canaries Reveal Social Effects and Sex Differences as Well as Limitations of Multiple Markers Available to Assess Adult Neurogenesis by Shevchouk, Olesya T, Ball, Gregory F, Cornil, Charlotte A, Balthazart, Jacques

“…In songbirds, neurogenesis in the song control nucleus HVC is sensitive to the hormonal and social environment but the dynamics of this process is difficult to…”
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The case of the missing mechanism: how does temperature influence seasonal timing in endotherms? by Caro, Samuel P, Schaper, Sonja V, Hut, Roelof A, Ball, Gregory F, Visser, Marcel E

“…Temperature has a strong effect on the seasonal timing of life-history stages in both mammals and birds, even though these species can regulate their body…”
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Neural Mechanisms for the Coordination of Duet Singing in Wrens by Fortune, Eric S., Rodríguez, Carlos, Li, David, Ball, Gregory F., Coleman, Melissa J.

“…Plain-tailed wrens (Pheugopedius euophrys) cooperate to produce a duet song in which males and females rapidly alternate singing syllables. We examined how…”
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Discrimination of natural acoustic variation in vocal signals by Fishbein, Adam R., Prior, Nora H., Brown, Jane A., Ball, Gregory F., Dooling, Robert J.

“…Studies of acoustic communication often focus on the categories and units of vocalizations, but subtle variation also occurs in how these signals are uttered…”
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Testosterone‐induced neuroendocrine changes in the medial preoptic area precede song activation and plasticity in song control nuclei of female canaries by Shevchouk, Olesya T., Ghorbanpoor, Samar, Ball, Gregory F., Cornil, Charlotte A., Balthazart, Jacques, Silver, Rae

“…Testosterone plays a key role in the control of seasonal changes in singing behavior and its underlying neural circuitry. After administration of exogenous…”
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Functional significance of the rapid regulation of brain estrogen action: Where do the estrogens come from? by Cornil, Charlotte A., Ball, Gregory F., Balthazart, Jacques

“…Estrogens exert a wide variety of actions on reproductive and non-reproductive functions. These effects are mediated by slow and long lasting genomic as well…”
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Rapid changes in brain estrogen concentration during male sexual behavior are site and stimulus specific by de Bournonville, Marie-Pierre, de Bournonville, Catherine, Vandries, Laura M., Nys, Gwenaël, Fillet, Marianne, Ball, Gregory F., Balthazart, Jacques, Cornil, Charlotte A.

“…Classically, estrogens regulate male sexual behavior through effects initiated in the nucleus. However, neuroestrogens, i.e., estrogens locally produced in the…”
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Perineuronal nets and vocal plasticity in songbirds: A proposed mechanism to explain the difference between closed‐ended and open‐ended learning by Cornez, Gilles, Madison, Farrah N., Van der Linden, Annemie, Cornil, Charlotte, Yoder, Kathleen M., Ball, Gregory F., Balthazart, Jacques

“…ABSTRACT Perineuronal nets (PNN) are aggregations of chondroitin sulfate proteoglycans surrounding the soma and proximal processes of neurons, mostly GABAergic…”
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Effects of Inactivation of the Periaqueductal Gray on Song Production in Testosterone-Treated Male Canaries ( Serinus canaria ) by Haakenson, Chelsea M, Balthazart, Jacques, Ball, Gregory F

“…Male canaries ( ) display seasonal changes in the motivation to sing which have been found to be dependent on the action of testosterone (T). During the…”
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Dynamic changes in brain aromatase activity following sexual interactions in males: Where, when and why? by de Bournonville, Catherine, Dickens, Molly J, Ball, Gregory F, Balthazart, Jacques, Cornil, Charlotte A

“…Summary It is increasingly recognized that estrogens produce rapid and transient effects at many neural sites ultimately impacting physiological and behavioral…”
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Information theory and the neuropeptidergic regulation of seasonal reproduction in mammals and birds by Stevenson, Tyler J., Ball, Gregory F.

“…Seasonal breeding in the temperate zone is a dramatic example of a naturally occurring change in physiology and behaviour. Cues that predict periods of…”
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