scholarly journals Individual differences in visual working memory capacity and search efficiency may predict distinct strategic processes for dot arrays by numerosity comparison sensitivity

2014 ◽  
Vol 14 (10) ◽  
pp. 548-548
Author(s):  
G. Kim ◽  
S. Cho ◽  
J.-S. Hyun
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Visual Working Memory ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Search Efficiency ◽  
Strategic Processes

scholarly journals Dissociable mechanisms underlying individual differences in visual working memory capacity

NeuroImage ◽  
2014 ◽  
Vol 99 ◽  
pp. 197-206 ◽  
Author(s):  
Rasa Gulbinaite ◽  
Addie Johnson ◽  
Ritske de Jong ◽  
Candice C. Morey ◽  
Hedderik van Rijn
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Visual Working Memory ◽  
Working Memory Capacity ◽  
Memory Capacity

scholarly journals Individual Differences in Working Memory Capacity and Visual Search in Reading

2021 ◽  
Author(s):  
Ralph S. Redden ◽  
Kaylee Eady ◽  
Raymond M Klein ◽  
Jean Saint-Aubin
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Visual Search ◽  
Dual Task ◽  
Cognitive Task ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Search Efficiency ◽  
Prose Passage ◽  
Wide Range

Individual differences in working memory capacity (WMC) are related to variations in a wide range of cognitive tasks. Surprisingly, effects of individual differences in working memory capacity are somewhat limited in visual search tasks. Here we tested the hypothesis that such an effect would be robust when search was one component of a dual task. Participants were presented strings of letters using rapid serial visual presentation and were required to detect all instances of a particular target letter. In Experiment 1, participants performed the letter search task in three contexts, while: a) reading a prose passage, b) processing a stream of random words, or c) processing a random stream of non-words. In the absence of the dual task of reading prose, and in line with much of the literature on individual differences in WMC and visual search, search performance was unaffected by WMC. As hypothesized, however, higher working memory capacity participants detected more target letters than lower capacity participants in the “true” dual task (searching while reading prose). The hypothesized results from the prose passage were replicated in Experiment 2. These results show that visual search efficiency is dramatically affected by WMC when searching is combined with another cognitive task but not when it is performed in isolation. Our findings are consistent with recent suggestions that visual search efficiency will be affected by WMC so long as searching is embedded in a context that entails managing resource allocation between concurrent tasks.

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