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Naming speed is negatively related to working memory capacity

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Shao,  Zeshu
University of Birmingham;
Individual Differences in Language Processing Group, MPI for Psycholinguistics, Max Planck Society;

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Meyer,  Antje S.
University of Birmingham;
Individual Differences in Language Processing Group, MPI for Psycholinguistics, Max Planck Society;

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Citation

Shao, Z., Roelofs, A., & Meyer, A. S. (2010). Naming speed is negatively related to working memory capacity. Poster presented at the Meeting at the University of Manchester of the Experimental Psychology Society 2010, Manchester, UK.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-9688-E
Abstract
Individuals differ greatly on how efficiently they can retrieve words from the mental lexicon in spoken word production. Little is known about how this individual difference might be related to individual difference in other cognitive abilities. The present study investigated the relationship between individuals’ working memory capacity and their efficiency of lexical access. Speeded naming of drawings of actions and objects was used to measure the efficiency of lexical access. To assess working memory capacity, we used the Operation Span (OSPAN) task (Turner & Engle, 1989), in which participants memorize unrelated words while making judgments on simple mathematic operations. We found that action naming response time (RT) was significantly longer than object naming RT. More importantly, there was a significant negative correlation between the action naming RT and the OSPAN score. There was no correlation between object naming RT and the OSPAN score. Ex-Gaussian analyses of the RT distributions revealed that the negative relationship between OSPAN and RT was evident throughout the distributions (i.e., reflected in the Gaussian part of the distribution). These results suggest that when words are difficult to select (our verbcondition) people with larger working memory capacity outperform people with lower working memory capacity. Turner, M. L., & Engle. R. W. (1989). Is working memory capacity task dependent? Journal of Memory and Language, 28, 127-154.