Separating processing from storage in working memory operation span
Separating processing from storage in working memory operation span
This chapter presents data on working memory operation span that are not consistent with the single flexible resource view. It describes empirical work that extends previous findings to demonstrate that memory maintenance can continue even when participants are occupied by a time-demanding processing task. It also presents evidence from a large participant sample suggesting that processing speed and memory capacity are largely unrelated in a working memory span task. This kind of evidence cannot readily be explained by the concept of a single limited capacity attentional resource that switches between memory and processing. It is much more comfortable with an account that draws on the concept of multiple cognitive resources that can operate in parallel, and a multiple component model of working memory.
Keywords: operation span, working memory, processing speed, memory capacity
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