Seasonal female brain plasticity in processing social vs. sexual vocal signals

Cousillas, Hugo; George, Isabelle; Alcaix, Sandrine; Henry, Laurence; Richard, Jean‐Pierre; Hausberger, Martine

doi:10.1111/ejn.12089

Cited by 12 publications

(16 citation statements)

References 71 publications

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“…The data obtained from these birds were compared to those obtained from birds (N = 10 females) tested earlier while awake-restrained15. These birds had been caught earlier in the same site and had been maintained and tested in exactly the same conditions.…”

Section: Methodsmentioning

confidence: 99%

“…Auditory stimuli were similar to those used in the awake condition15: artificial non-specific sounds (white noise and 0.5, 1, 2, 4 & 8 kHz pure tones) and songs (Fig. 1) chosen for their behavioral relevance35.…”

Section: Methodsmentioning

confidence: 99%

“…In an earlier study, we were able to demonstrate that Field L neurons of awake adult female starlings are tuned to species-specific song elements that are produced by both males and females (Class II and Class III songs; Fig. 1), showing a seasonal plasticity with more responses to non-sexual male song elements outside the breeding season, but more towards sexual song elements (high pitched trills) at breeding time15. Here, we tested the responses of auditory neurons of anesthetized females, using exactly the same procedure, both at breeding and non-breeding times.…”

mentioning

confidence: 87%

“…However, they led to controversial results. Some showed a strong impact of anesthesia on neuronal selectivity in mammals and birds: no response to some stimuli when awake, to others when anesthetized; changes in neuronal preferences and hemispheric specialization of sound processing312131415. Others, mostly in birds, led to the conclusion that anesthesia did not affect neuronal tuning451617.…”

mentioning

confidence: 99%

“…Electrophysiological recordings of 7920 neuronal sites in Field L (both hemispheres) from 16 anesthetized adult female starlings (3856 neuronal sites) were performed, using exactly the same procedure (systematic recording throughout Field L using 4 microelectrodes20) as those performed on awake birds (4064 neuronal sites from 10 birds), with which they were then compared (data already published15). Eight birds were recorded during the breeding season and 8 outside.…”

mentioning

confidence: 99%

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Anesthesia and brain sensory processing: impact on neuronal responses in a female songbird

Karino

George

Loison

et al. 2016

Sci Rep

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Whether anesthesia impacts brain sensory processing is a highly debated and important issue. There is a general agreement that anesthesia tends to diminish neuronal activity, but its potential impact on neuronal “tuning” is still an open question. Here we show, based on electrophysiological recordings in the primary auditory area of a female songbird, that anesthesia induces neuronal responses towards biologically irrelevant sounds and prevents the seasonal neuronal tuning towards functionally relevant species-specific song elements.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 87%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Anesthesia and brain sensory processing: impact on neuronal responses in a female songbird

Karino

George

Loison

et al. 2016

Sci Rep

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Let's talk about sex: Mechanisms of neural sexual differentiation in Bilateria

Roggenbuck,

Hall,

Hanson

et al. 2024

WIREs Mechanisms of Disease

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In multicellular organisms, sexed gonads have evolved that facilitate release of sperm versus eggs, and bilaterian animals purposefully combine their gametes via mating behaviors. Distinct neural circuits have evolved that control these physically different mating events for animals producing eggs from ovaries versus sperm from testis. In this review, we will describe the developmental mechanisms that sexually differentiate neural circuits across three major clades of bilaterian animals–Ecdysozoa, Deuterosomia, and Lophotrochozoa. While many of the mechanisms inducing somatic and neuronal sex differentiation across these diverse organisms are clade‐specific rather than evolutionarily conserved, we develop a common framework for considering the developmental logic of these events and the types of neuronal differences that produce sex‐differentiated behaviors.This article is categorized under: Congenital Diseases > Stem Cells and Development Neurological Diseases > Stem Cells and Development

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Testing individual variations of horses’ tactile reactivity: when, where, how?

Gueguen

Lerch

Grandgeorge

et al. 2022

Sci Nat

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Tactile perception is involved in a variety of contexts (adaptations to climatic conditions, protection of the body against external dangers...) and is as important as the other sensory modalities for the survival of an individual.This tactile modality has been particularly well studied in humans, revealing high individual variations modulated by a variety of intrinsic and extrinsic factors such as age, sex, pathological disorders or temperament.Tactility is also involved in animals' social lives, although there are disparities between species. For example, social tactile contact among horses is limited, but this does not mean that they do not react to tactile stimuli but rather with their very thin skin they are able to detect minute stimuli (although they respond more to larger stimuli). Despite a fairly large effort to characterize it, there are controversies concerning equine tactile sensitivity.In this review, we examine studies that have used the same tool (Von Frey filaments) and try to disentangle what could explain the differences observed. It appears that many aspects are poorly known or controversial and that the procedures may be so different that the results of different studies cannot be compared. We went further by testing tactile reactivity of a population of unridden horses and found that four factors influenced their tactile reactivity (type of horse, filament size, body area, time of day). These results could explain some of the discrepancies observed in the literature and suggest, in particular, that more attention should be paid to the context of the test. Keywords: perception, equids, Von Frey filaments, methodology force. This principle therefore allows a known, measurable and reproducible force to be applied to the skin surface.Von Frey filaments were initially developed for humans to define tactile perception thresholds (Bell-Krotoski et al. 1995). A nylon filament delivering an average force of 0.07g was found to be a good predictor of the "normal" pressure threshold of light touch on hands and on a large part of the body of adult humans (Bell-Krotoski et al. 1995). This tool has become widely used both for human, i.e. medicine (Jerosch-Herold 2005) and preclinical neuroscience (Le Bars et al. 2001), often to assess pain with the hope of therapeutic translation (Mogil 2009) but also for animal (

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Seasonal female brain plasticity in processing social vs. sexual vocal signals

Cited by 12 publications

References 71 publications

Anesthesia and brain sensory processing: impact on neuronal responses in a female songbird

Anesthesia and brain sensory processing: impact on neuronal responses in a female songbird

Let's talk about sex: Mechanisms of neural sexual differentiation in Bilateria

Testing individual variations of horses’ tactile reactivity: when, where, how?

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