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Explorative function in Prader-Willi syndrome analyzed through an ecological spatial task.

F Foti1, D Menghini2, L Petrosini1

  • 1Department of Psychology, University "Sapienza", Via dei Marsi 78, 00185 Rome, Italy; IRCCS Santa Lucia Foundation (CERC), Via del Fosso di Fiorano 65, 00143 Rome, Italy.

Research in Developmental Disabilities
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Summary
This summary is machine-generated.

Individuals with Prader-Willi syndrome (PWS) show spatial exploration deficits, particularly in specific environmental configurations. Their performance differs from Williams Syndrome (WS) individuals, highlighting how spatial abilities are processed.

Keywords:
Explorative strategiesGenetic syndromesSpatial abilitySpatial memorySpatial task

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • Prader-Willi syndrome (PWS) is a complex genetic disorder affecting multiple systems.
  • Spatial cognition deficits are known in PWS, but require further ecological investigation.
  • Williams Syndrome (WS) serves as a comparative model due to its well-documented spatial impairments.

Purpose of the Study:

  • To evaluate spatial exploration abilities in individuals with PWS using a large-scale, real-world task.
  • To compare spatial performance between PWS and WS individuals across different environmental layouts.
  • To understand how environmental structure influences spatial exploration strategies in these populations.

Main Methods:

  • Participants with PWS and WS completed an ecological spatial task involving searching for rewards in an open space.
  • Rewards were arranged in three distinct configurations: Cross, 3x3 Matrix, and Cluster.
  • Explorative strategies and task completion were systematically analyzed for each participant group and configuration.

Main Results:

  • PWS individuals demonstrated significant explorative deficits in the Cluster and Cross configurations.
  • WS participants exhibited spatial deficits primarily in the Matrix and Cross configurations.
  • Performance variations suggest that environmental structure impacts spatial processing differently in PWS and WS.

Conclusions:

  • Environmental affordances critically influence spatial exploration strategies in individuals with PWS and WS.
  • The findings provide insights into the distinct spatial processing mechanisms underlying PWS and WS.
  • This research underscores the importance of considering environmental context when assessing spatial abilities in neurodevelopmental disorders.