Search results for "Neural"
showing 10 items of 2783 documents
Morphological and molecular changes in mouse olfactory epithelium following postnatal odorant exposures
2011
Morphological and molecular changes in mouse olfactory epithelium following postnatal odorant exposures. 10. annual meeting of the french neuroscience society
Negative impact of high fructose diet on olfactory performances: behavioral and functional analysis
2014
Negative impact of high fructose diet on olfactory performances: behavioral and functional analysis. 9. Forum of Neuroscience FENS
Evidence for interactions between aroma compounds and the CB1 receptor: a way to regulate food intake?
2012
National audience; Obesity is a major cause of morbidity and mortality worldwide, characterised by a chronic imbalance of energy homeostasis. The regulation of dietary intake appears to be an effective way to regulate this imbalance. Furthermore, it is now well established that the endocannabinoid system influences appetite via the cannabinoid receptor type 1 (CB1): CB1 agonists can promote food intake while CB1 antagonists tend to decrease appetite (1). Interestingly, recent studies showed that CB1-like receptors are expressed in the olfactory epithelium of Xenopus laevis tadpoles (2). Elsewhere, it has been demonstrated that aroma perception is implicated in the process of satiety (3). Co…
Perception and processing of odor mixtures
2012
Perception and processing of odor mixtures. Olfaktologie / Gustologie
Exploring the odorant and molecular characteristics of molecules sharing the odour notes of an aroma blending mixture
2021
Online event (Live and on-demand); International audience; To perceive a huge number of odors from few hundreds ORs, the human olfactory system encodes odor identities by an olfactory scheme whereby one olfactory receptor (OR) recognizes multiple odorants while one odorant activates different combinations of ORs [1, 2]. Odors perceived in our environment are mainly the result of mixtures of odorants, but the specific mechanisms involved in their processing remain poorly understood [3]. In previous studies performed at INRAE-CSGA [4], the perception of a mixture of ethyl isobutyrate (Et iB, strawberry-like odor, STR) and ethyl maltol (Et-M, caramel-like odor, CAR) was investigated in compari…
Electronic implementation of a non-linear oscillator subjected to noise : application to the modeling of neuronal information coding
2011
We study the nonlinear FitzHugh-Nagumo model witch describes the dynamics of excitable neural element. It is well known that this system exhibits three different possible responses. Indeed, the system can be mono-stable, oscillatory or bistable. In the oscillatory regime, the system periodically responds by generating action potential. By contrast, in the mono-stable state the system response remains constant after a transient. Under certain conditions, the system can undergo a bifurcation between the stable and the oscillatory regime via the so called Andronov-Hopf bifurcation. In this Phd thesis, we consider the FitzHugh-Nagumo model in the stable state, that is set near the Andronov-Hopf…
The multiple facets of Cajal-Retzius neurons.
2021
ABSTRACTCajal-Retzius neurons (CRs) are among the first-born neurons in the developing cortex of reptiles, birds and mammals, including humans. The peculiarity of CRs lies in the fact they are initially embedded into the immature neuronal network before being almost completely eliminated by cell death at the end of cortical development. CRs are best known for controlling the migration of glutamatergic neurons and the formation of cortical layers through the secretion of the glycoprotein reelin. However, they have been shown to play numerous additional key roles at many steps of cortical development, spanning from patterning and sizing functional areas to synaptogenesis. The use of genetic l…
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
Measuring vine leaf roughness by image processing
2013
International audience; In precision spraying, spray application efficiency depends on the pesticide application method, the phytosanitary product as well as the leaf surface properties. For environmental and economic reasons, the global trend is to reduce the pesticide application rate of the few approved active substances. Under these constraints, one of the challenges is to improve the efficiency of pesticide application. Different parameters can influence on pesticide application as nozzle types, liquid viscosity and leaf surface. Specific models have been developed showing that the predominant factor for the leaf is the leaf roughness, because it is related on adhesion mechanisms of li…
An olfactory receptor detects waxy, fatty and rose odors
2008
An olfactory receptor detects waxy, fatty and rose odors. Salon Européen de la Recherche et de l’Innovation