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- W285540879 abstract "It has been established that processes relating to 'spatial attention' are implemented at cortical level by goal-directed (top-down) and stimulus-driven (bottom-up) networks. Spatial neglect in brain-damaged individuals has been interpreted as a distinguished exemplar for a disturbance of these processes. The present paper elaborates this assumption. Functioning of the two attentional networks seem to dissociate in spatial neglect; behavioral studies of patients' orienting and exploration behavior point to a disturbed stimulus-driven but preserved goal-directed attention system. When a target suddenly appears somewhere in space, neglect patients demonstrate disturbed detection and orienting if it is located in contralesional direction. In contrast, if neglect patients explore a scene with voluntarily, top-down controlled shifts of spatial attention, they perform movements that are oriented into all spatial directions without any direction-specific disturbances. The paper thus argues that not the top-down control of spatial attention itself, rather a body-related matrix on top of which this process is executed, seems affected. In that sense, the traditional role of spatial neglect as a stroke model for 'spatial attention' requires adjustment. Beyond its insights into the human stimulus-driven attentional system, the disorder most notably provides vistas in how our brain encodes topographical information and organizes spatially oriented action - including the top-down control of spatial attention - in relation to body position." @default.
- W285540879 created "2016-06-24" @default.
- W285540879 creator A5034775572 @default.
- W285540879 date "2015-08-01" @default.
- W285540879 modified "2023-10-18" @default.
- W285540879 title "Spatial attention systems in spatial neglect" @default.
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- W285540879 doi "https://doi.org/10.1016/j.neuropsychologia.2015.05.019" @default.
- W285540879 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26004064" @default.
- W285540879 hasPublicationYear "2015" @default.
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