Individual differences in working memory capacity and long-term memory: The influence of intensity of attention to items at encoding as measured by pupil dilation

Publication date: February 2019Source: Journal of Memory and Language, Volume 104Author(s): Ashley L. Miller, Marina P. Gross, Nash UnsworthAbstractThe present study used pupil dilation as an index of the intensity of attention to determine if variation in attention at encoding partially accounts for the relation between working memory capacity (WMC) and long-term memory (LTM). In Experiment 1, participants completed a delayed free recall task while pupil dilation was simultaneously recorded. Results revealed high WMC individuals displayed an increase in pupil dilation across serial positions, whereas low WMC individuals exhibited a decline in pupil dilation. Experiment 2 employed a similar method but manipulated encoding conditions via value–directed remembering. Results demonstrated wh...

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