Executive functioning and memory as potential mediators of the episodic feeling-of-knowing accuracy

  • Perrotin A
  • Tournelle L
  • Isingrini M
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Abstract

The study focused on the cognitive determinants of the accuracy of feeling-of-knowing (FOK) judgments made on episodic memory information. An individual differences approach was used on a sample of healthy older adults assessed on an episodic FOK task and on several neuropsychological measures. At a global level of analysis of FOK accuracy, the contributions of four general cognitive processes-episodic memory, executive functioning, fluid intelligence and processing speed-were examined concurrently. Stepwise regression analyses showed that executive functioning accounted for the major part of variance on FOK accuracy, followed by a significant contribution of episodic memory. After controlling for executive and memory involvement, fluid intelligence and processing speed no longer accounted for significant variance. At a more detailed level of analysis of FOK accuracy, the contributions of three specific executive processes-shifting, updating and inhibition-were assessed. The results revealed shifting function as the primary executive process engaged in the production of accurate FOK judgments in episodic memory. Some hypotheses are put forward to better understand the central role of executive functioning in the production of accurate FOK judgments. © 2007 Elsevier Inc. All rights reserved.

Author-supplied keywords

  • Episodic memory
  • Executive functioning
  • Feeling-of-knowing (FOK)
  • Fluid intelligence
  • Processing speed

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Authors

  • Audrey Perrotin

  • Lydia Tournelle

  • Michel Isingrini

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