Blog
About

5
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Brain areas involved in spatial working memory.

      Neuropsychologia

      Tomography, X-Ray Computed, Brain, psychology, physiopathology, diagnosis, Stroke, physiology, Retention (Psychology), Psychomotor Performance, Prefrontal Cortex, Pattern Recognition, Visual, Orientation, Neuropsychological Tests, Middle Aged, Memory, Short-Term, Male, Magnetic Resonance Imaging, Humans, Hippocampus, Functional Laterality, Female, Dominance, Cerebral, Discrimination (Psychology), Brain Mapping

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Spatial working memory entails the ability to keep spatial information active in working memory over a short period of time. To study the areas of the brain that are involved in spatial working memory, a group of stroke patients was tested with a spatial search task. Patients and healthy controls were asked to search through a number of boxes shown at different locations on a touch-sensitive computer screen in order to find a target object. In subsequent trials, new target objects were hidden in boxes that were previously empty. Within-search errors were made if a participant returned to an already searched box; between-search errors occurred if a participant returned to a box that was already known to contain a target item. The use of a strategy to remember the locations of the target objects was calculated as well. Damage to the right posterior parietal and right dorsolateral prefrontal cortex impaired the ability to keep spatial information 'on-line', as was indicated by performance on the Corsi Block-Tapping task and the within-search errors. Moreover, patients with damage to the right posterior parietal cortex, the right dorsolateral prefrontal cortex and the hippocampal formation bilaterally made more between-search errors, indicating the importance of these areas in maintaining spatial information in working memory over an extended time period.

          Related collections

          Author and article information

          Journal
          16300806
          10.1016/j.neuropsychologia.2005.10.005

          Comments

          Comment on this article