Individual differences in working memory capacity correlate with task-switching strategies

Individual differences in repetition priming is an often-overlooked area of research. The importance of this neglect becomes evident when considering the criticisms that priming research has received in the last decade concerning reliability. The current researched aimed to investigate whether individual differences in working memory capacity and affective states have differential effects on lexical-semantic repetition priming outcomes based on whether participants were first or second English speakers. Using logistic mixed-effects models to account for subject variation, the current paper investigated a three-way interaction between working memory capacity, negative affect score, and language on repetition priming outcomes. The results indicate that a statistically significant three-way interaction exists. We present an argument which posits that an individual’s primary language and subsequent familiarity with the primed concepts, in conjunction with individual differences in working memory capacity and mood, plays an important role in determining the most effective strategy used to complete a word-stem completion task.

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Individual differences in working memory capacity are unrelated to the magnitudes of retrocue benefits

Scientific Reports ◽

10.1038/s41598-021-86515-5 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Chaoxiong Ye ◽

Qianru Xu ◽

Xinyang Liu ◽

Piia Astikainen ◽

Yongjie Zhu ◽

...

Keyword(s):

Working Memory ◽

Individual Differences ◽

Significant Positive Correlation ◽

Working Memory Capacity ◽

Memory Capacity ◽

Capacity Measurement ◽

Object Based ◽

Feature Dimension ◽

The Relationship ◽

Internal Attention

AbstractPrevious studies have associated visual working memory (VWM) capacity with the use of internal attention. Retrocues, which direct internal attention to a particular object or feature dimension, can improve VWM performance (i.e., retrocue benefit, RCB). However, so far, no study has investigated the relationship between VWM capacity and the magnitudes of RCBs obtained from object-based and dimension-based retrocues. The present study explored individual differences in the magnitudes of object- and dimension-based RCBs and their relationships with VWM capacity. Participants completed a VWM capacity measurement, an object-based cue task, and a dimension-based cue task. We confirmed that both object- and dimension-based retrocues could improve VWM performance. We also found a significant positive correlation between the magnitudes of object- and dimension-based RCB indexes, suggesting a partly overlapping mechanism between the use of object- and dimension-based retrocues. However, our results provided no evidence for a correlation between VWM capacity and the magnitudes of the object- or dimension-based RCBs. Although inadequate attention control is usually assumed to be associated with VWM capacity, the results suggest that the internal attention mechanism for using retrocues in VWM retention is independent of VWM capacity.

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