Summary : Spatial effects of movement : their role and processing. The movement, of a « mobile » (object in motion) for instance, is accompanied by spatial effects due to the mobile's change of position in the surrounding space of its displacement. This change of position leads to a modification of spatial relations maintained by the mobile with the elements of its ambient space. This theoretical note, after having clearly distinguished the perception of movement from spatial treatment of its consequences, identifies two tightly intricated problems : the first one concerns the conditions of the spatial treatment and the second problem has to do with the role of the spatial structure. It is noted that researchs show numerous examples of classical confusions or non-explicit experimental presuppositions. Key-words : perception of movement, spatial treatment.