19 mars 2020: 1 événement


  • Séminaires LPNC

    Jeudi 19 mars 13:00-14:00 - Valérie Goffaux - Human vision science lab, Université de Louvain (Belgique)

    Faces are made of this… Contribution of Orientation and Spatial frequency when processing faces

    Résumé : Human visual perception results from a complex chain of processes, starting with the spatial frequency- and orientation-selective encoding of luminance in the primary visual cortex (V1). As the visual signals proceed in the visual system, increasingly more complex shape properties are coded, with several high-level regions specializing for selective categories such as faces, words, natural scenes. We know very little about how such high-level specialization builds upon primary encoding stages in V1.
    Our work combines multiple investigation techniques : psychophysics, electrophysiology (scalp EEG, ERP and steady-state), as well as neuroimaging (of V1 and high-level visual regions) and suggests that the specialization of face processing, though emerging at high-level stages of visual processing, roots into the processing of selective ranges of the primary orientation and SF information.
    These findings encourage the adoption of more integrative approaches to face perception, and vision in general, encompassing both low- and high-level visual mechanisms.

    Lieu : Salle Annie Génovèse (A6), Bâtiment Michel Dubois (ex. BSHM)

    En savoir plus : Séminaires LPNC