title: Support for distinct subcomponents of spatial working memory: a double dissociation between spatial-simultaneous and spatial-sequential performance in unilateral neglect.
abstract: Over the last decade, many studies have demonstrated that visuospatial working memory (VSWM) can be divided into separate subsystems dedicated to the retention of visual patterns and their serial order. Impaired VSWM has been suggested to exacerbate left visual neglect in right-brain-damaged individuals. The aim of this study was to investigate the segregation between spatial-sequential and spatial-simultaneous working memory in individuals with neglect. We demonstrated that patterns of results on these VSWM tasks can be dissociated. Spatial-simultaneous and sequential aspects of VSWM can be selectively impaired in unilateral neglect. Our results support the hypothesis of multiple VSWM subsystems, which should be taken into account to better understand neglect-related deficits.
authors.affiliation: a Department of Psychology, Behavior and Cognition , University of Liège , Liège , Belgium.
authors.forename: Murielle
authors.initials: M
authors.lastname: Wansard
authors.forename: Paolo
authors.initials: P
authors.lastname: Bartolomeo
authors.forename: Christine
authors.initials: C
authors.lastname: Bastin
authors.forename: Fermín
authors.initials: F
authors.lastname: Segovia
authors.forename: Sophie
authors.initials: S
authors.lastname: Gillet
authors.forename: Christophe
authors.initials: C
authors.lastname: Duret
authors.forename: Thierry
authors.initials: T
authors.lastname: Meulemans
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000503:physiopathology; D008570:Memory, Short-Term / Q000502:physiology*; D008875:Middle Aged; D010468:Perceptual Disorders / Q000503:physiopathology*; D013028:Space Perception / Q000502:physiology*; D065852:Spatial Memory / Q000502:physiology*
keywords: spatial cognition; unilateral neglect; visuospatial working memory