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Caffeine cravings impair memory and metacognition


Palmer, MA and Sauer, JD and Ling, A and Riza, J, Caffeine cravings impair memory and metacognition, Memory, 25, (9) pp. 1225-1234. ISSN 0965-8211 (2017) [Refereed Article]

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Copyright 2017 Informa UK Limited, trading as Taylor & Francis Group

DOI: doi:10.1080/09658211.2017.1282968


Cravings for food and other substances can impair cognition. We extended previous research by testing the effects of caffeine cravings on cued-recall and recognition memory tasks, and on the accuracy of judgements of learning (JOLs; predicted future recall) and feeling-of-knowing (FOK; predicted future recognition for items that cannot be recalled). Participants (N = 55) studied word pairs (POND-BOOK) and completed a cued-recall test and a recognition test. Participants made JOLs prior to the cued-recall test and FOK judgements prior to the recognition test. Participants were randomly allocated to a craving or control condition; we manipulated caffeine cravings via a combination of abstinence, cue exposure, and imagery. Cravings impaired memory performance on the cued-recall and recognition tasks. Cravings also impaired resolution (the ability to distinguish items that would be remembered from those that would not) for FOK judgements but not JOLs, and reduced calibration (correspondence between predicted and actual accuracy) for JOLs but not FOK judgements. Additional analysis of the cued-recall data suggested that cravings also reduced participants' ability to monitor the likely accuracy of answers during the cued-recall test. These findings add to prior research demonstrating that memory strength manipulations have systematically different effects on different types of metacognitive judgements.

Item Details

Item Type:Refereed Article
Keywords:cravings, feeling-of-knowing (FOK), judgements of learning (JOL), memory, metacognition
Research Division:Psychology
Research Group:Cognitive and computational psychology
Research Field:Memory and attention
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in psychology
UTAS Author:Palmer, MA (Associate Professor Matt Palmer)
UTAS Author:Sauer, JD (Associate Professor Jim Sauer)
UTAS Author:Ling, A (Mr Angus Ling)
UTAS Author:Riza, J (Mr Joshua Riza)
ID Code:114540
Year Published:2017
Funding Support:Australian Research Council (DP140103746)
Web of Science® Times Cited:4
Deposited By:Psychology
Deposited On:2017-02-17
Last Modified:2018-07-25

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