Télécharger textes du site

 

 
avec l'aide de
FreeFind

 
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
resolutionmini

mise à jour du
15 janvier 2010
Brain Res
1978;142(1):105-122
Heterosexual, autosexual and social behavior of adult male rhesus monkeys with medial preoptic-anterior hypothalamic lesions
 
Slimp JC, Hart BL, Goy RW.

Chat-logomini

 
Bilateral radiofrequency lesions were made in the medial preoptic-anterior hypothalamic (MP-AH) area of 6 adult male rhesus monkeys; 5 sham-lesioned subjects served as controls.
 
Behavioral analysis consisted of observations on copulatory behavior, yawning, masturbation and some aspects of social behavior. MP-AH lesions reduced or completely eliminated the display of manual contacts of the partner, mounts, intromissions and ejaculations without interfering with masturbation.
 
Yawning, a sexually dimorphic behavior, was not affected either, Measure of several social behaviors indicated no evidence of social withdrawal or other aberrance of social interactions, which might have led to the decline in heterosexual behavior.
 
The results with regard to copulatory behavior were consistent with the effects of MP-AH lesions in rats, cats and dogs. In rhesus monkeys it appears as though the MP-AH region is specifically involved in the mediation of heterosexual copulation and is not vital to the performance of other forms of male sexual activity such as masturbation.
 
Also the MP-AH is not critical for the display of all sexually dimorphic behaviors. The types of behavioral change in MP-AH lesioned subjects differed to some extent from those following castration, indicating that the effects of the lesions cannot be explained as basically that of functional castration.
 
 
 
Ethological study of yawning in primates Deputte BL
Behavioral effects of an antiandrogen in adult male rhesus Macaques Deputte BL etal.
Yawning in old world monkey, Macaca nigra Hadidian
The influence of age, sex, rank on yawning behavior in two species of macaques Troisi A, Aureli F
 
« It is ironic that testosterone "the male sex hormone," is more closely associated with the yawning rate than with the mounting or intromitting rates » Charles Phoenix
 
 
Sexual steroids exert several effects on both central dopaminergic and oxytocinergic systems by acting either at the genomic or membrane level