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Procedural and declarative knowledge simultaneously contribute to category response selection.

Priya B Kalra1,2,3, Laura J Batterink4,5,6, John P Minda4,5,6

  • 1Center for Brain and Mind, Western University, London, Canada. pkalra7@uwo.ca.

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Summary
This summary is machine-generated.

Skilled behavior integrates declarative and procedural learning. This study reveals both memory systems simultaneously influence categorization, even when participants are unaware of one learning source.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Learning Sciences

Background:

  • Skilled behavior integrates declarative (explicit knowledge) and procedural (implicit knowledge) learning.
  • The precise interaction mechanisms between these memory systems remain unclear.
  • Prior research suggests system-level competition, but interaction at the representational level is unknown.

Purpose of the Study:

  • To investigate if declarative and procedural knowledge can simultaneously contribute to categorization response selection.
  • To determine if distinct memory systems interact at the representational level during behavior.

Main Methods:

  • Participants categorized stimuli using a verbalizable shape rule (declarative).
  • Stimuli also had probabilistic color differences (procedural), unbeknownst to participants.
  • Response times were measured during conflicting and congruent rule applications.

Main Results:

  • Participants utilized both shape (declarative) and color (procedural) information for categorization.
  • Responses were faster when both cues aligned and slower when they conflicted.
  • Most participants remained unaware of the procedural color learning.

Conclusions:

  • Declarative and procedural memory systems contribute simultaneously to behavior at the trial level.
  • This demonstrates a novel interaction between memory systems at the representational level.
  • Findings have implications for understanding decision-making and educational strategies.