© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permission@oup.com. doi:10.1093/arclin/acz048 Advance Access publication 3 December 2019 Archives of Clinical Neuropsychology 36 (2021) 267–280 TDQ-30—A New Color Picture-Naming Test for the Diagnostic of Mild Anomia: Validation and Normative Data in Quebec French Adults and Elderly Joël Macoir 1,2, * , Andréanne Chagnon 1 , Carol Hudon 2,3 , Monica Lavoie 1,2 and Maximiliano A. Wilson 1,2 1 Département de réadaptation, Faculté de médecine, Université Laval, G1V 0A6, Québec (QC), Canada 2 Centre de recherche CERVO – Brain Research Centre, G1J 2G3, Québec (QC), Canada 3 École de psychologie, Faculté des sciences sociales, Université Laval, G1V 0A6, Québec (QC), Canada *Corresponding author at: Département de réadaptation, Faculté de médecine, Université Laval, Pavillon F-Vandry, Québec (Québec) G1K 7P4, Canada. Tel.: +1 418 656 2131; Fax: +1 418 656 5476. E-mail address: joel.macoir@fmed.ulaval.ca (J. Macoir) Received 10 May 2019; revised 18 July 2019; Accepted 19 August 2019 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. Keywords: Anomia; Picture-naming; Lexical access; Semantics; Test validity; Normative data Introduction Normal aging is accompanied by changes in motor and sensory abilities, but also in cognitive functions. The information and representations acquired early in life seem to be resilient to the effects of aging, whereas a gradual decline from adulthood to the end of life is observed for some cognitive functions (Craik & Bialystok, 2006). This decline is especially significant for information processing speed, the manipulation of abstract representations as well as attentional control (Salthouse, 2010). Although in general, language abilities are unimpaired during normal aging (Harada, Natelson Love, & Triebel, 2013), a Downloaded from https://academic.oup.com/acn/article/36/2/267/5628135 by guest on 29 July 2022