Search results for "odor"

Deep sequencing of the human retinae reveals the expression of odorant receptors

2017

Several studies have demonstrated that the expression of odorant receptors (ORs) occurs in various tissues. These findings have served as a basis for functional studies that demonstrate the potential of ORs as drug targets for a clinical application. To the best of our knowledge, this report describes the first evaluation of the mRNA expression of ORs and the localization of OR proteins in the human retina that set a stage for subsequent functional analyses. RNA-Sequencing datasets of three individual neural retinae were generated using Next-generation sequencing and were compared to previously published but reanalyzed datasets of the peripheral and the macular human retina and to reference…

Newborn crawling and rooting in response to maternal breast odor

2021

International audience; A growing literature shows that perception and action are already tightly coupled in the newborn. The current study aimed to examine the nature of the coupling between olfactory stimuli from the mother and the newborn's crawling and rooting (exploratory movements of the head). To examine the coupling, the crawling and rooting behavior of 28 2-day-old newborns were studied while they were supported prone on a mobility device shaped like a mini skateboard, the Crawliskate®, their head positioned directly on top of a pad infused with either their mother's breast odor (Maternal) or the odor of water (Control). Video and 3D kinematic analyses of the number and types of li…

Enigma, suspense, dilemma. Valori e modalità di lettura del giorno della civetta

2020

The paper presents a close reading of The Day of the Owl originating f rom the perspective of semiotic literary theory. It is possible to observe three strategies in the text: enigma, suspense, and dilemma. Whereas the first two cover the unmasking of the truth – following the tradition in crime novels –, the third strategy is particular to the Sciascian contextual crime novel, focused on the semantic instability of values that are the foundation of the social contract. From this starting point, this essay seeks to show that the ‘first novel on Mafia’ is also the first novel that tackles the issue of the Anti-Mafia.

Alehandro Hodorovska kino mitokritiskā analīze: „Kurmis”, „Svētais Kalns”, „Svētās Asinis”

2015

Alehandro Hodorovskis ir čīliešu kinorežisors, kurš veiksmīgi realizējis savu potenciālu arī kā rakstnieks, dzejnieks, mūziķis, aktieris, psihoterapeits un garīgais skolotājs. Šī pētījuma autore izvēlējusies analizēt trīs Hodorovska stila paraugfilmas – “Kurmis”, “Svētais Kalns” un “Svētās Asinis”. Izmantojot mitokritisko analīzi, tiek identificēti filmās izmantotie simboli, ar kuru palīdzību režisors savā stāstījumā iekļauj dažādu mītu reinterpretācijas. Šo mītisko izpausmju vidū var izcelt reliģijas, filozofijas, alķīmijas, psihiatrijas, ezotērikas, mitoloģijas un citu nozaru ietekmes. Pētījumā analizētās trīs filmas raksturo Hodorovska unikālo stilu un viņa mākslu radīt ekscentrisku kino…

Antennal lobe representations are optimized when olfactory stimuli are periodically structured to simulate natural wing beat effects

2014

Animals use behaviors to actively sample the environment across a broad spectrum of sensory domains. These behaviors discretize the sensory experience into unique spatiotemporal moments, minimize sensory adaptation, and enhance perception. In olfaction, behaviors such as sniffing, antennal flicking, and wing beating all act to periodically expose olfactory epithelium. In mammals, it is thought that sniffing enhances neural representations; however, the effects of insect wing beating on representations remain unknown. To determine how well the antennal lobe produces odor-dependent representations when wing beating effects are simulated, we used extracellular methods to record neural units an…

Relaxing effects of music and odors on physiological recovery after highly demanding executive tasks

2021

International audience

Vakaumus muutokseen : käsitehistoriallinen näkökulma Theodore Rooseveltin sisäpoliittiseen retoriikkaan vuosina 1901-1912

2008

Early development of taste and flavor preferences and consequences on eating behavior

2018

The first 1000 days of life constitute an important period for development of health and eating behavior, in particular because the mode of feeding drastically evolves, which involves that the child has to learn “how” to eat, but also “what” to eat, “how” much food to eat. After birth, when foods are orally exposed, infants discover the intrinsic properties of foods, with a variety of tastes, flavors, textures, as well as energy densities. Here we focus on deciphering the involvement of taste and olfaction in the early establishment of eating behavior. In the OPALINE French birth cohort (Observatory of Food Preferences in Infants and Children), taste and flavor preferences were studied in c…

Role of human metabolizing enzymes in food perception

2022

Flavor is the main factor determining food acceptability. Flavor corresponds to the combination of the signals from the gustatory system, the olfactory system and the trigeminal system. Interactions between proteins and flavor molecules in oral/nasal cavities are proposed to modulate flavor perception through a series of events knowns as perireceptor events. Among these proteins involved in this modulation are found enzymes mainly known for their role in the detoxification process. These enzymes are able to recognize a large panel of molecules. We proposed to explore the role of these enzymes in food perception. We demonstrated that enzymatic activities present in the oral epithelium and sa…

Sensory changes with age and impact on appetite and food intake

2017

International audience