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Caffeine cravings impair memory and metacognition.

Matthew A Palmer1, James D Sauer2, Angus Ling2

  • 1a Division of Psychology, School of Medicine , University of Tasmania , Launceston , Tasmania , Australia.

Memory (Hove, England)
|March 10, 2017
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Summary
This summary is machine-generated.

Caffeine cravings negatively impact memory recall and recognition. Cravings also affected metacognitive judgments, specifically impairing the ability to predict future recognition accuracy.

Keywords:
Cravingsfeeling-of-knowing (FOK)judgements of learning (JOL)memorymetacognition

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Behavioral Science

Background:

  • Substance cravings, including for caffeine, are known to impair cognitive functions.
  • Previous research indicates that memory can be affected by various internal states, but the specific impact of caffeine cravings on memory and metacognition requires further investigation.

Purpose of the Study:

  • To examine the effects of caffeine cravings on cued-recall and recognition memory performance.
  • To assess how caffeine cravings influence metacognitive judgments, specifically Judgments of Learning (JOLs) and Feelings of Knowing (FOKs).

Main Methods:

  • Fifty-five participants were randomly assigned to either a caffeine craving or control condition.
  • Caffeine cravings were induced through abstinence, cue exposure, and imagery, followed by memory tasks including cued-recall and recognition.
  • Participants made Judgments of Learning (JOLs) before recall and Feelings of Knowing (FOKs) before recognition to assess metacognitive accuracy.

Main Results:

  • Caffeine cravings significantly impaired performance on both cued-recall and recognition memory tasks.
  • Cravings reduced the resolution of Feelings of Knowing (FOKs) but not Judgments of Learning (JOLs).
  • Cravings diminished the calibration of Judgments of Learning (JOLs) but not Feelings of Knowing (FOKs), and impaired self-monitoring during recall.

Conclusions:

  • Caffeine cravings exert a detrimental effect on memory recall and recognition.
  • The impact of cravings on metacognitive judgments differs, affecting the accuracy of predicting future recall versus recognition.
  • These findings highlight the complex relationship between craving states, memory performance, and metacognitive monitoring.