title: Breaking ranks: space and number may march to the beat of a different drum.
abstract: Number processing can evoke spatial representations and cause lateralized attention shifts. The article by Wood et al. suggests interesting considerations about the mental space of numbers by pointing to a difference between physical and numerical space processing. We read Wood et al.'s findings in a perspective that takes into consideration a currently debated issue, that is the relation between Simon and SNARC effects. By pointing to a difference between peripheral onsets and numerical targets, indeed, their finding suggests that the hypothesis of a complete overlap between Simon and SNARC effects is less plausible than a partial overlap hypothesis.
authors.affiliation: Institute of Cognitive Neuroscience, University College London, London, UK. e.rusconi@ucl.ac.uk
authors.forename: Elena
authors.initials: E
authors.lastname: Rusconi
authors.forename: Carlo
authors.initials: C
authors.lastname: Umiltà
authors.forename: Giovanni
authors.initials: G
authors.lastname: Galfano
mesh_terms: D001288:Attention / Q000502:physiology; D006801:Humans; D008606:Mental Processes / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D013028:Space Perception / Q000502:physiology*