Search results for "odor"

Maternal odor selectively enhances the categorization of face(like) stimuli in the 4 month-old infant brain

2020

Présentation Poster; International audience; In the 4-month-old infant brain, the visual categorization of natural face images is enhanced by concomitant maternal odor (Leleu et al., 2019), providing support for the early perception of congruent associations between co-occurring inputs from multiple senses. Here, we further explore whether this maternal odor effect is selective to faces or if it can be explained by a more general influence of salient odor cues on the perception of any visual object category. In Experiment 1, scalp electroencephalogram was recorded during a fast periodic visual stimulation (FPVS-EEG) while 4-month-old infants were exposed to the maternal vs. a control odor. …

Mouse olfactory sensory neurons' plasticity induced by postnatal odorant exposure: anatomical, molecular and physiological consequences

2012

Mouse olfactory sensory neurons' plasticity induced by postnatal odorant exposure: anatomical, molecular and physiological consequences. 8. FENS forum of neuroscience

Rules and Mechanisms of Perceptual Interaction of Odor Mixtures : Application to Icewine aroma

2021

Icewine was used as an experimental object, and hundreds of wine- or food-related odor mixtures were designed and investigated for the first time based on the identification and analysis of icewine’ odorants. The aim of the thesis work was to explore the key odor elements that affected the perception of odor mixtures and the general laws behind olfactory perceptual interactions. The thesis manuscript contains seven chapters:The first review of the literature gives a brief introduction to the olfactory system and odor perception. Then, odorants’ mixture perception is highlighted through examples of interactions between odorants at the perceptual level. Research progress in perceptual interac…

Detection of powerful odorants in heated milk by use of extract dilution sniffing analysis

1994

SummaryThe odour impact compounds of raw, pasteurized and UHT bovine milk were investigated using vacuum extraction and extract dilution sniffing analysis using CharmAnalysis™. Fifteen odour peaks with Charm values between 10 and 3443 were detected. Of these peaks, twelve were identified as hexanal, ethyl butanoate, 2-heptanone, heptanal, dimethyl sulphone, l-octen-3-ol, ethyl hexanoate, 2-nonanone, nonanal, benzothiazole, 2-undecanone, indole and one as a mixture of 2-tridecanone and δ-decalactone. Dimethyl sulphone, indole and one unknown compound (retention index 1154) were the only ones detected as odour impact compounds in all three types of milk. Ethyl butanoate and ethyl hexanoate we…

3D-QSAR study of ligands for two human olfactory receptors

2008

International audience; All living organisms, including human beings, are able to detect and discriminate myriads of structurally diverse odorants through their interaction with olfactory receptors (ORs) (1). It is well accepted that the perception of thousands of odors by about 380 ORs results from a combinatorial coding, in which one OR recognizes multiple odorants and different odorants are recognized by different combinations of ORs (2). In a previous study (3), the functional characterization on two human ORs, called OR1G1 (class II) and OR52D1 (class I) have been performed using 95 odorant molecules. We used these previously obtained functional data (3) to perform a molecular modellin…

Adaptive value of maternal odors in human neonates

2018

Dans le sillage de Hoffmann : naissance du fantastique en Russie

2014

International audience; Cet article se penche sur l’'héritage de Hoffmann dans l'édification russe du genre fantastique. La place dévolue au conteur allemand permet en effet de mettre en valeur de manière privilégiée les enjeux politiques et philosophiques du fantastique romantique russe, et ainsi de caractériser la dimension profondément spéculaire de ce fantastique, qui interroge le geste créateur.

Le discours du fou dans le récit romantique européen (Allemagne, France, Russie)

2012

The thesis studies the linguistics, philosophy and aesthetics of literary language of the madman in the Romantic era. It focuses on The Devil's Elixirs (Hoffmann, 1815),The Crumb Fairy (Nodier, 1832), The Diary of a Madman(Gogol, 1835), The Sylph(Odoevsky, 1837) and Aurelia(Nerval, 1855). Other narratives are more promptly summoned, as The Night Watches(Bonaventura, 1804) or Louis Lambert(Balzac, 1832).The madman is a problematic being: he is both unhealthy and inhabited by a divine inspiration. This paradox finds a new relevance in the first half of the nineteenth century. On the one hand, the development of Alienism tends to define mental pathologies from a medical point of view. On the o…

Conflit et aliénation, des Élixirs du diable de Hoffmann à Aurélia de Nerval

2009

International audience

Narcisse et Pygmalion : le peintre fou dans la littérature fantastique romantique

2012

This article examines the relationship between creation and self-esteem, through the analysis of five nineteenth century narratives, The Jesuit Church in Glogau and The Devil's Elixirs by E. T. A. Hoffmann, The Oval Portrait by Edgar Poe, The Unknown Masterpiece by Honoré de Balzac and Walter Eisenberg by Konstantin Aksakov. According to Ovid, Pygmalion manages to create a fertile woman, contrary to Narcissus. However, from an Christian and moral point of view, self-esteem happens to be doubly condemned: it leads human beings away from God and other people. Therefore, the point is to determine if romantic narratives succeed in defying this pattern and create self-sufficient artists able to …