Jérémy Frey

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Despite expanded definition of the leukocyte adhesion cascade and mechanisms underlying individual steps, very little is known about regulatory mechanisms controlling sequential shifts between steps. We tested the hypothesis that metalloproteinases provide a mechanism to rapidly transition monocytes between different steps. Our study identifies diapedesis(More)
The conflict between vergence (eye movement) and accommodation (crystalline lens deformation) occurs in every stereoscopic display. It could cause important stress outside the "zone of comfort", when stereoscopic effect is too strong. This conflict has already been studied using questionnaires, during viewing sessions of several minutes. The present pilot(More)
With stereoscopic displays, a depth sensation that is too strong could impede visual comfort and result in fatigue or pain. Electroencephalography (EEG) is a technology which records brain activity. We used it to develop a novel braincomputer interface that monitors users’ states in order to reduce visual strain. We present the first proof-of-concept system(More)
The effects of the microiontophoretic application of dynorphin A-(1-13) (DYN 13) and the benzomorphans ethylketocyclazocine (EKC), bremazocine and MRZ 2549, (kappa) opioid agonists, and of morphine and morphiceptin, (mu) opioid agonists, were compared on spontaneous or glutamate-evoked discharge of globus pallidus (GP) neurons in rat. Our results(More)
With stereoscopic displays a sensation of depth that is too strong could impede visual comfort and may result in fatigue or pain. We used Electroencephalography (EEG) to develop a novel brain-computer interface that monitors users' states in order to reduce visual strain. We present the first system that discriminates comfortable conditions from(More)
User Interface for a Collaborative Environment ........................................................................ 552 Youssef Roummieh and Parisa Ghodous (LIRIS, – UMR 5205 CNRS – UCBL, Villeurbanne, France) Multimedia Collaborative Adaptation Middleware for Personalization E-Learning ............................. 558 Svetlana Kim and Yongik Yoon(More)
Brain-computer interfaces (BCI) are promising communication devices between humans and machines. BCI based on non-invasive neuroimaging techniques such as electroencephalography (EEG) have many applications, however the dissemination of the technology is limited, in part because of the price of the hardware. In this paper we compare side by side two EEG(More)
Global inactivation of the metalloproteinase ADAM17 during mouse development results in perinatal lethality and abnormalities of the heart, including late embryonic cardiomegaly and thickened semilunar and atrioventricular valves. These defects have been attributed in part to a lack of ADAM17-mediated processing of HB-EGF, as absence of soluble HB-EGF(More)
These studies were performed to evaluate the effects of chronic haloperidol administration on the responsiveness of the pars reticulata neurons of the substantia nigra (SNR) to microiontophoretically applied gamma-aminobutyric acid (GABA) and glycine. Rats were administered haloperidol in their feed (CHAL treatment) for 30 days in increasing concentrations.(More)
The symptoms of poisoning by the pyrethroid and cyclodiene insecticides are characterized by hyperexcitation and convulsions followed by paralysis. The main target site of the pyrethroids has been identified to be the sodium channels which are kept open for unusually long periods of time, causing a prolonged sodium current to flow which, in turn, leads to(More)