Le bâillement, du réflexe à la pathologie
Le bâillement : de l'éthologie à la médecine clinique
Le bâillement : phylogenèse, éthologie, nosogénie
 Le bâillement : un comportement universel
La parakinésie brachiale oscitante
Yawning: its cycle, its role
Warum gähnen wir ?
 
Fetal yawning assessed by 3D and 4D sonography
Le bâillement foetal
Le bâillement, du réflexe à la pathologie
Le bâillement : de l'éthologie à la médecine clinique
Le bâillement : phylogenèse, éthologie, nosogénie
 Le bâillement : un comportement universel
La parakinésie brachiale oscitante
Yawning: its cycle, its role
Warum gähnen wir ?
 
Fetal yawning assessed by 3D and 4D sonography
Le bâillement foetal
http://www.baillement.com

mystery of yawning 

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 Le bâillement, du réflexe à la pathologie
Le bâillement : de l'éthologie à la médecine clinique
Le bâillement : phylogenèse, éthologie, nosogénie
 Le bâillement : un comportement universel
La parakinésie brachiale oscitante
Yawning: its cycle, its role
Warum gähnen wir ?
 
Fetal yawning assessed by 3D and 4D sonography
Le bâillement foetal
Le bâillement, du réflexe à la pathologie
Le bâillement : de l'éthologie à la médecine clinique
Le bâillement : phylogenèse, éthologie, nosogénie
 Le bâillement : un comportement universel
La parakinésie brachiale oscitante
Yawning: its cycle, its role
Warum gähnen wir ?
 
Fetal yawning assessed by 3D and 4D sonography
Le bâillement foetal
http://www.baillement.com

 

 

 

 babyyawn

 

 

 

haut de page

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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mise à jour du
23/10/2005
The Ultrasound Review of Obstetrics & Gynecology
2005;5(3):210-217
lexique
bibliographie
Fetal yawning : a behavior's birth with 4D US revealed
Olivier Walusinski
 Asim Kurjak, Wiku Andonotopo
Department of Obstetrics and Gynecology, Medical School University of Zagreb, Sveti Duh Hospital, Zagreb, Croatia
Guillermo Azumendi
Unidad Ecografia Centro Gutenberg, Malaga, Spain
 
Bâillements du foetus: la naissance d'un comportement
révèlée par l'échographie 4D
 
Video de bâillement foetal à 23 semaines en Echo 4D
Video de bâillement foetal à 13 semaines en Echo 4D
 
Sonography Edited by: Kerry Thoirs
Fetal Yawning Olivier Walusinski
Chapter 18 Pages 325-332
 
Piontelli A. Fetal Yawning in Development of Normal Fetal Movements. The fisrt 25 weeks of gestation. Spinger. 2010. 135p.
 
Tous les articles consacrés au bâillement foetal
Fetal yawning: all publications

Chat-logomini

this text becomes partly a chapter of the book :
 
 The Mystery of Yawning in Physiology and Disease
Frontiers of Neurology and Neuroscience tome 28
Karger, Basel 2010
 
 
Abstract : The capacity of four-dimensional sonography to evaluate complex facial expressions allows recognition of a common behavior, yawning. Although there has been remarkably little interest in yawning in research and medical practice, even though it is an everyday phenomenon, we submit an original interpretation on the basis of knowledge derived from phylogeny and ontogeny. As a flip-flop switch, the reciprocal interactions between sleep- and wake-promoting brain regions allow the emergence of distinct states of arousal. By its ontogenical links with REM sleep, yawning appears as a behavior which procures an arousal reinforcement through the powerful stretch and the neuromuscular rewiring induced. Yawning indicates a harmonious progress in the development of both the brainstem and the peripheral neuromuscular function, testifying to the induction of an ultradian rhythm of vigilance. The lack of fetal yawn, frequently associated with lack of swallowing, associated or not with retrognathia, may be a key to predict a brainstem's dysfunction after birth. (en français)
 
Résumé: L'échographie 4D permet l'évaluation des expressions faciales du foetus et en particulier de reconnaître un comportement banal, le bâillement. Bien qu'il s'agisse d'un comportement pluri-quotidien, le bâillement a suscité peu d'intérêt tant en recherche qu'en pratique médicale. Phylogenèse et ontogenèse permettent de proposer une théorie de son origine. Comme un interrupteur de type "va et vient", l'alternance d'action des structures cérébrales stimulant l'éveil ou le sommeil engendre l'émergence de différents états de vigilance. Succédant à l'hypotonie musculaire du sommeil paradoxal avec lequel le bâillement partage des liens ontogénétiques, l'étirement musculaire puissant qu'il représente active par rétro-contrôle les structures du tronc cérébral impliquées dans l'éveil. L'existence du bâillement chez le foetus témoigne d'un développement harmonieux du tronc cérébral, de la fonction neuro-musculaire périphérique et de l'installation de rythmes ultradiens de la vigilance. La reconnaissance de l'absence de bâillements comme de mouvements de déglutition, associée ou non à un rétrognatisme prédit un risque de dysfonctionnement postnatal du tronc cérébral. (in english)
3D
Introduction
 
The use of ultrasound examinations during pregnancy allows a type of fetal behavior, yawning, to be observed on a daily basis. Few data have been published in the last 25 years on yawning, thus prompting researchers to state "yawning is a universally well known, but poorly understood" [1] and "a rudimentary reflex, appears to have at best an obscure purpose, if any" [2]. Although there has been remarkably little interest in yawning in research, even though it is an everyday phenomenon, we will discuss the meaning of this behavior and how its characterization can enhance ultrasound investigation. As a foreword, it should be noted that human research on prenatal programming of behavior is intrinsically correlational, never manipulatively experimental, and frequently based upon homologies with other vertebrates.
 
 
 
 
 
 
fetal yawning 13 weeks
fetal yawning 12 weeks pregnant (see the video) Dr Walusinski ©
 
 
ontogeny behavior
Why yawning shares a link with arousal
 
inside yawning
 
fetal movements
Yawning or not: A pathology?
 
 
 
Conclusion
 
With significant advances in image quality, resolution of ultrasound, and now 3D and 4D technology, the use of ultrasound examination during pregnancy is a step forward from anatomical examination to functional evaluation. Recognition of fetal yawning aids to testify of the harmonious progress of brainstem maturation and to understand the neural underpinnings of sleep and arousal systems. An abnormality yawn's occurrence fosters an intensive research of anemic fetuses (frequency amplified) or brainstem dysfunction with or without mandibular hypoplasia (frequency sparse or null). We hope and expect that upcoming researches will complete the data currently available.
fetal yawn
 
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fetal.yawn
 
 
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