Cet événement prendre place à l'UCL (Auditoire MAISIN), le lundi 9 septembre, à 18 heures, sur le Campus de Bruxelles-Woluwé.
Visual recognition is amazingly rapid and requires a series of computational processing stages extending from primary visual cortex to ventral temporal cortex (VTC). Here, professor GRILL-SPECTOR will examine the functional architecture of human VTC and its role in recognition following Marr's (1982) framework. She will detail the computational goals, the information computed to reach those goals (representations), and the physical layout of that information on the cortical sheet (implementation). She will show that the interplay between these three factors is important for supporting the rapid and efficient visual recognition implemented in human VTC. Examination of the anatomical and topological relationships among a series of fine- and large-scale functional representations in VTC reveals predictable divergences and convergences across cortical scales and stimulus dimensions, generating a spatial hierarchy of nested functional representations. She will propose that this spatial hierarchy supports (and potentially mirrors) the hierarchical information structure of VTC, enabling different levels of information abstraction from exemplars, to basic categories, to broad categorical distinctions, necessary for rapid perception across a variety of situational needs and task demands.