10/04/2018 Computer Science Medicine Psychology
DOI: 10.1111/nyas.13634 SemanticScholar ID: 4710287 MAG: 2786605632

Are there multiple ways to direct attention in working memory?

Publication Summary

In visual working memory tasks, memory for an item is enhanced if participants are told that the item is relatively more valuable than others presented within the same trial. Experiment 1 explored whether these probe value boosts (termed prioritization effects in previous literature) are affected by probe frequency (i.e., how often the more valuable item is tested). Participants were presented with four colored shapes sequentially and asked to recall the color of one probed item following a delay. They were informed that the first item was more valuable (differential probe value) or as valuable as the other items (equal probe value), and that this item would be tested more frequently (differential probe frequency) or as frequently (equal probe frequency) as the other items. Probe value and probe frequency boosts were observed at the first position, though both were accompanied by costs to other items. Probe value and probe frequency boosts were additive, suggesting the manipulations yield independent effects. Further supporting this, experiment 2 revealed that probe frequency boosts are not reliant on executive resources, directly contrasting with previous findings regarding probe value. Taken together, these outcomes suggest there may be several ways in which attention can be directed in working memory.

CAER Authors

Avatar Image for Amy Atkinson

Dr. Amy Atkinson

Lancaster University - Lecturer in Developmental Psychology

Avatar Image for Amanda Waterman

Prof. Amanda Waterman

University of Leeds - Professor of Cognitive Development

Avatar Image for Richard Allen

Dr. Richard Allen

University of Leeds - Associate Professor

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