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How to measure working memory capacity in the change detection paradigm
Open accessAbstract
Although the measurement of working memory capacity is crucial to understanding working memory and its interaction with other cognitive faculties, there are inconsistencies in the literature on how to measure capacity. We address the measurement in the change detection paradigm, popularized by Luck and Vogel (Nature, 390, 279-281, 1997). Two measures for this task-from Pashler (Perception & Psychophysics, 44, 369-378, 1988) and Cowan (The Behavioral and Brain Sciences, 24, 87-114, 2001), respectively-have been used interchangeably, even though they may yield qualitatively different conclusions. We show that the choice between these two measures is not arbitrary. Although they are motivated by the same underlying discrete-slots working memory model, each is applicable only to a specific task; the two are never interchangeable. In the course of deriving these measures, we discuss subtle but consequential flaws in the underlying discrete-slots model. These flaws motivate revision in the modal model and capacity measures.
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“Data provided by this task can estimate with a high degree of precision the average number of memory items correctly retained by a participant for each set size, namely, the individual’s VWM capacity.”
From Emotion-related impulsivity moderates the cognitive interference effect of smartphone availability on working memory (2019) · cites this paper as [52]
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Metadata
- Authors
- Rouder, J. N., Morey, R. D., Morey, C. C., & Cowan, N.
- Affiliations
- University of Missouri System (US)
- University of Groningen (NL)
- Corresponding author
- Rouder, Jeffrey N.
- Venue
- Psychonomic Bulletin & Review
- Published
- 2011-02-19
- Volume
- 18
- Issue
- 2
- Pages
- 324-330
- ISSN
- 1069-9384 (ISSN-L)
- 1531-5320
- PMC
- PMC3070885
- OpenAlex
- W1993017443
- Cited by
- 334
- References
- 32
- Citations by year
- 2026: 11 · 2025: 21 · 2024: 44 · 2023: 22 · 2022: 25 · 2021: 25 · 2020: 26 · 2019: 24 · 2018: 20 · 2017: 25 · 2016: 16 · 2015: 18 · 2014: 19 · 2013: 15 · 2012: 20
- FWCI
- 24.30
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by-nc
- www.springer.com/tdm (tdm)
- Locations
- Psychonomic Bulletin & Review (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion, cc-by-nc)
- ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
- Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, other-oa)
- University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by-nc)
- Funders
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01 HD-21338, R01HD021338)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Keywords
- working memory capacity, change detection, capacity measurement, modal model, visual working memory
- MeSH terms
- Aptitude, Humans, Memory, Short-Term, Models, Psychological, Psychological Tests, Signal Detection, Psychological
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