Ladouce and Gillebert provide unusually precise evidence that urban materiality enters cognition through the moving body. Using mobile eye-tracking, foot-mounted inertial sensors and GPS on a 1.9 km urban route, they show that pavement type systematically alters both gaze and gait: rougher surfaces induce more downward and proximal looking, slower pace, shorter stride and reduced cadence. The iconic contribution is the demonstration that perception and locomotion form a coupled adaptive system rather than two separable layers of urban experience. Their method is significant because it relocates experimental measurement from the laboratory into ecologically valid urban conditions while retaining spatially contextualised data. The paper also makes visible an often neglected scale of urbanism: the ground plane as an active regulator of attention, balance and forward planning. It bridges ecological psychology, embodied cognition, architecture and pedestrian research by showing that the city is perceived not only through façades and vistas but through continuous sensorimotor negotiation with surfaces.
URBANISM MEETS ART