Search results for "animal behavior"
showing 3 items of 83 documents
The perception of odor objects in everyday life: a review on the processing of odor mixtures
2014
International audience; Smelling monomolecular odors hardly ever occurs in everyday life, and the daily functioning of the sense of smell relies primarily on the processing of complex mixtures of volatiles that are present in the environment (e.g., emanating from food or conspecifics). Such processing allows for the instantaneous recognition and categorization of smells and also for the discrimination of odors among others to extract relevant information and to adapt efficiently in different contexts. The neurophysiological mechanisms underpinning this highly efficient analysis of complex mixtures of odorants is beginning to be unraveled and support the idea that olfaction, as vision and au…
The Secretion of Areolar (Montgomery's) Glands from Lactating Women Elicits Selective, Unconditional Responses in Neonates
2009
Background The communicative meaning of human areolae for newborn infants was examined here in directly exposing 3-day old neonates to the secretion from the areolar glands of Montgomery donated by non related, non familiar lactating women. Methodology/Principal Findings The effect of the areolar stimulus on the infants' behavior and autonomic nervous system was compared to that of seven reference stimuli originating either from human or non human mammalian sources, or from an arbitrarily-chosen artificial odorant. The odor of the native areolar secretion intensified more than all other stimuli the infants' inspiratory activity and appetitive oral responses. These responses appeared to deve…
Conséquences d'un régime diabétogène enrichi en fructose sur la muqueuse olfactive : aspects anatomiques, fonctionnels et comportementaux
2015
The influence of metabolic status on olfactory processes has been thoroughly investigated over the last few years. Both nutritional status and hormones implicated in food metabolism can effectively modulate the olfactory system from the single neuron to the behavior. Thus, it seems likely that metabolic disorders such as type 2 diabetes (T2D) can induce olfactory dysfunctions. In fact T2D patients display poor olfactory performances however the effects of diabetes in itself (as well as underlying mechanisms) are still unknown. In this study, we investigated the modulation of olfaction in young adult male mice caused by a high-fructose diet (HFruD) inducing T2D in rodents. Animals displayed …