Compared to cognitive functions such as working memory and executive functions, language appeared to be mostly resistant to age-related decline. However, language is affected in the early stages of major forms of dementia and, language deficits are at the core of the clinical portrait of primary progressive aphasia. Primary care providers are frequently faced with patients whose main complaints concern language problems in everyday and professional life. Up to now, no brief, accurate, screening test, which could be applied during routine office visits, is available for language deficits in neurodegenerative diseases. The aim of this project is to fill this important lack by developing a handy, sensitive and brief detection test for language impairments in adults and aging. The use of the DTLA could improve the diagnosis of neurodegenerative diseases, especially those in which language is primarily affected. Ultimately, this will permit patients and their families to receive services at an earlier stage of the disease.