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Addressing Confounding Factors in the Study of Working Memory in Aphasia: Empirical Evaluation of Modified Tasks and Measures

Year: 2009
Type: article
Abstract: Deficits in working memory are a critical subset of nonlinguistic impairments in aphasia.Previous studies indicated that individuals with aphasia made more errors on working memory tasks compared to individuals without cognitive or neurological impairments.Also, an association between working memory capacity and general language abilities in people with aphasia was demonstrated.Unfortunately, the study of working memory in aphasia is fraught with methodological limitations, thus reducing validity and generalization of findings.The goal of this current study was to reduce confounds associated with existing tasks and measures by developing working memory span tasks suited for individuals with aphasia and establishing the psychometric properties of associated performance measures.Participants engaged in four working memory tasks.In the traditional listening span task, participants without aphasia listened to long compound sentences, verified their semantic plausibility, remembered a set of separately presented words, and then recalled them at the end of a sentence set.In the modified listening span task, participants heard sentences, pointed to an image within a multiple-choice display that best matched that sentence, and remembered a set of words for later recall.In the counting span task, participants counted the number of target shapes within each display and remembered the
Institution: Ohio University
Language: English
Open Access status: green
OpenAlex ID: W8114691
FWCI:
Cites: 120
Cited by: 1
Related to: 10