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A specific deficit in visuospatial simultaneous working memory in Down syndrome.

S Lanfranchi1, B Carretti, G Spanò

  • 1Department of Developmental Psychology, via Venezia 8, 35131 Padova, Italy. silvia.lanfranchi@unipd.it

Journal of Intellectual Disability Research : JIDR
|April 28, 2009
PubMed
Summary
This summary is machine-generated.

Individuals with Down syndrome (DS) show specific deficits in simultaneous visuospatial working memory (VSWM). This contrasts with their performance in sequential VSWM tasks, suggesting unique challenges in processing multiple spatial items.

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Area of Science:

  • Cognitive Neuroscience
  • Developmental Psychology

Background:

  • Individuals with Down syndrome (DS) exhibit known deficits in central and verbal working memory.
  • Visuospatial working memory (VSWM) in DS has shown inconsistent findings, necessitating further investigation.

Purpose of the Study:

  • To investigate specific deficits in visuospatial working memory (VSWM) in individuals with Down syndrome (DS).
  • To differentiate between spatial-sequential and spatial-simultaneous VSWM abilities in DS.

Main Methods:

  • Administered four VSWM tasks to 34 children/adolescents with DS and 34 age- and verbally-matched controls.
  • Tasks included spatial-sequential (remembering locations in order) and spatial-simultaneous (remembering locations at once) conditions.

Main Results:

  • Individuals with DS performed significantly worse on spatial-simultaneous VSWM tasks compared to controls.
  • No significant differences were found between DS and controls on spatial-sequential VSWM tasks.
  • Deficits in simultaneous VSWM persisted even when controlling for processing speed.

Conclusions:

  • Down syndrome is associated with a specific deficit in simultaneous visuospatial working memory.
  • This deficit may stem from difficulties in processing multiple spatial items concurrently.
  • Findings contribute to understanding the cognitive profile of Down syndrome.