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Sound envelope considered as amplitude modulation contains relevant information about speech intelligibility. Hewitt and Meddis developed an auditory pathway model that codes amplitude modulation. It was extended to a multi channel one. Inferior colliculus response to amplitude-modulated white noise is compared with the response to amplitude-modulated tone in terms of firing rate and synchronisation...
Cet article traite de l'influence des champs radio-electriques emis par les telephones portables sur l'activite cerebrale humaine. Notre travail est realise sur le systeme auditif a partir du recueil de potentiels evoques auditifs (PEA) a la surface du scalp de sujets sains et de patients epileptiques. Le protocole permet de comparer les PEA enregistres avec ou sans exposition aux radiofrequences...
Cet article s'inscrit dans le cadre de l'etude des signaux stereoelectroencephalographiques (EEG de profondeur) enregistres lors de crises d'epilepsie. Il propose une methode de mise en correspondance capable de quantifier, d'une crise a l'autre, les reproductibilites des relations inter-canaux estimees par la fonction de coherence. Tout d'abord, sur deux enregistrements differents, est choisi avec...
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