The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2022
Filed:
Mar. 29, 2018
Institut Du Cerveau ET DE LA Moelle Epiniere (Icm), Paris, FR;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Institut National DE LA Sante ET DE LA Recherche Medicale (Inserm), Paris, FR;
Assistance Publique-hopitaux DE Paris (Ap-hp), Paris, FR;
Sorbonne Universite, Paris, FR;
INSTITUT DU CERVEAU ET DE LA MOELLE EPINIERE (ICM), Paris, FR;
CENTRE NATIONAL DE LA RACHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), Paris, FR;
ASSISTANCE PUBLIQUE-HOPITAUX DE PARIS (AP-HP), Paris, FR;
SORBONNE UNIVERSITE, Paris, FR;
Abstract
Evaluation of the perception of colors by mammals with a view to obtaining a characteristic biomarker of each tested subject takes advantage of the slow pupillary oscillatory response to generate an objective neurological signature of this perception of colors. A method based on pupil frequency tagging is used at a tagging frequency Fadapted to the pupil response speed. A dynamic two-color stimulus is displayed, this stimulus comprising a two-color pattern the colors of which are inverted at the frequency F, one of the colors gradually varying in a range of possible values. From the pupillary response, a signal representative of the oscillation power of the pupil is generated. The minimum of this signal corresponds to the relative iso-luminance of the tested pair of colors.