A dedicated system for topographical working memory: evidence from domain-specific interference tests

L. Piccardi, R. Nori, M. Boccia, S. Barbetti, P. Verde, C. Guariglia, F. Ferlazzo

Research output: Contribution to journalArticlepeer-review

Abstract

In the present study, we used single- and dual-task conditions to investigate the nature of topographical working memory to better understand what type of task can hamper performance during navigation. During dual-task conditions, we considered four different sources of interference: motor (M), spatial motor (SM), verbal (i.e. articulatory suppression AS) and spatial environmental (SE). In order to assess the nature of topographical working memory, we used the Walking Corsi Test, asking the participants to perform two tasks simultaneously (M, SM, AS and SE). Our results showed that only spatial-environmental interference hampers the execution of a topographical working memory task, suggesting a task-domain-specific effect. We also found general gender differences in the topographical working memory capabilities: men were more proficient than women, regardless of the type of interferences. However, like men, women performed worse when a spatial-environmental interference was present.

Original languageEnglish
Pages (from-to)2489-2495
Number of pages7
JournalExperimental Brain Research
Volume233
Issue number8
DOIs
Publication statusPublished - Aug 25 2015

Keywords

  • Dual task
  • Interference effects
  • Navigational memory
  • Topographical disorientation
  • Visuo-spatial working memory
  • Walking Corsi Test

ASJC Scopus subject areas

  • Neuroscience(all)

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