title: What is needed for a theory of mobility: direct perception and cognitive maps--lessons from the blind.
mesh_terms: D001766:Blindness / Q000523:psychology* / Q000534:rehabilitation; D003071:Cognition; D004777:Environment; D006801:Humans; D008124:Locomotion; D008960:Models, Psychological; D009039:Motion Perception; D012682:Sensory Aids; D013037:Spatial Behavior; D014796:Visual Perception