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The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
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Swap errors in spatial working memory are guesses.

Michael S Pratte1

  • 1Department of Psychology, Mississippi State University, 110 Magruder Hall, Starkville, MS, 39762, USA. prattems@gmail.com.

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|September 23, 2018
PubMed
Summary
This summary is machine-generated.

Participants guess intelligently when visual working memory fails. Instead of random guessing, they use studied item locations for non-target responses, indicating a strategic memory retrieval process.

Keywords:
Confidence ratingsDiscrete capacityVisual working memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Memory

Background:

  • Visual working memory (VWM) tasks typically involve reporting item features (e.g., color) or locations.
  • A discrepancy exists: participants guess randomly on color reports but not location reports, often misattributing non-probed item locations.
  • This behavior has been interpreted as evidence for feature binding errors or against discrete capacity models.

Purpose of the Study:

  • To investigate whether non-target location responses in VWM are random guesses or intelligent strategies.
  • To test the hypothesis that participants guess based on previously studied item locations when memory is uncertain.

Main Methods:

  • Utilized false-probe trials where a non-studied color was probed, necessitating a guess.
  • Analyzed response patterns to determine if guesses were centered around studied locations.
  • Measured confidence ratings for non-target responses and manipulated retention intervals in a second experiment.

Main Results:

  • Guesses on false-probe trials were significantly centered around studied item locations.
  • Confidence ratings for non-target responses were low, comparable to random guesses.
  • Altering the retention interval affected the rate of low-confidence non-target responses.

Conclusions:

  • The tendency to report non-probed item locations reflects an intelligent guessing strategy, not necessarily feature binding errors.
  • This suggests a flexible memory system that utilizes available information for strategic guessing when direct recall fails.
  • Findings challenge interpretations based solely on memory representation limitations and support adaptive memory retrieval processes.