TDQ-30—A New Color Picture-Naming Test for the Diagnostic of Mild Anomia: Validation and Normative Data in Quebec French Adults and Elderly

Abstract Objective A reduction in lexical access is observed in normal aging and a few studies also showed that this ability is affected in individuals with subjective cognitive decline. Lexical access is also affected very early in mild cognitive impairment as well as in major neurocognitive disord...

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Bibliographic Details
Published in:Archives of clinical neuropsychology 2021-02, Vol.36 (2), p.267-280
Main Authors: Macoir, Joël, Chagnon, Andréanne, Hudon, Carol, Lavoie, Monica, Wilson, Maximiliano A
Format: Article
Language:English
Subjects:
Adult
Aged
Anomia
Humans
Middle Aged
Neuropsychological Tests
Quebec
Reproducibility of Results
Semantics
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Summary:Abstract Objective A reduction in lexical access is observed in normal aging and a few studies also showed that this ability is affected in individuals with subjective cognitive decline. Lexical access is also affected very early in mild cognitive impairment as well as in major neurocognitive disorders. The detection of word-finding difficulties in the earliest stages of pathological aging is particularly difficult because symptoms are often subtle or mild. Therefore, mild anomia is underdiagnosed, mainly due to the lack of sensitivity of naming tests. In this article, we present the TDQ-30, a new picture-naming test designed to detect mild word-finding deficits in adults and elderly people. Method The article comprises three studies aiming at the development of the test (Study 1), the establishment of its validity and reliability (Study 2), and finally, the production of normative data for French-speaking adults and elderly people from Quebec (Study 3). Results The results showed that the TDQ-30 has good convergent validity. Also, the TDQ-30 distinguished the performance of healthy controls from those of participants with mild cognitive impairment, Alzheimer’s disease, and post-stroke aphasia. This suggests good discriminant validity. Finally, this study provides normative data computed from a study sample composed of 227 participants aged 50 years and over. Conclusions The TDQ-30 has the potential to become a valuable picture-naming test for the diagnosis of mild anomia associated with pathological aging.
ISSN:1873-5843
1873-5843
DOI:10.1093/arclin/acz048