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Cognitive load during route selection increases reliance on spatial heuristics.

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Cognitive load during route planning increases reliance on implicit heuristics, like the southern route preference and initial segment strategy. This suggests working memory impacts spatial decision-making strategies.

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Area of Science:

  • Cognitive Psychology
  • Spatial Cognition
  • Decision-Making Theory

Background:

  • Route planning involves complex cognitive processes, including perception, strategy selection, and heuristic use.
  • Implicit heuristics, such as the southern route preference and initial segment strategy, influence spatial decision-making.
  • Cognitive load, particularly working memory load, may affect the application of these heuristics.

Purpose of the Study:

  • To investigate whether increased cognitive load enhances reliance on implicit heuristics during map-based route planning.
  • To examine the impact of working memory load on the southern route preference and initial segment strategy.

Main Methods:

  • Two experiments were conducted using varying levels of working memory load (0-back vs. 2-back).
  • Participants planned routes under minimal or high cognitive load conditions.
  • Experiment 1 focused on the southern route heuristic; Experiment 2 focused on the initial segment strategy.

Main Results:

  • The study replicated findings of a southern route preference and an initial segment strategy.
  • Heuristic reliance was more pronounced under high working memory load conditions.
  • Faster decision-making under load correlated with greater heuristic use.

Conclusions:

  • Working memory load significantly increases the application of heuristics in spatial decision-making.
  • Cognitive demands during route planning can lead to greater reliance on implicit strategies.
  • Understanding these effects is crucial for models of spatial cognition and decision-making.