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	Mattis Demensskala	Trail Making Test
Ämnesområde	Neuropsykologi	Neuropsykologi
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1988	1958
Upphovsperson	Sandra Mattis	Ralph Reitan
Typ	Clinician-administered comprehensive neuropsychological scale	Clinician-administered neuropsychological test of attention and executive function
Ursprungskälla	Mattis, S. (1988). Dementia Rating Scale (DRS). Odessa, FL: Psychological Assessment Resources.	Reitan, R. M. (1958). Validity of the Trail Making Test as an indicator of organic brain damage. Perceptual and Motor Skills, 8(3), 271-276.
Alias	DRS, Mattis DRS, Dementia Rating Scale	TMT, Trails A, Trails B, Trail Making A
Närliggande	5	5
Sammanfattning	The Mattis Dementia Rating Scale (DRS) is a comprehensive 36-item clinician-administered neuropsychological battery designed to assess and quantify cognitive decline in dementia. Developed by Sandra Mattis in 1988, the DRS measures five major cognitive domains—attention, initiation/perseveration, construction, conceptualization, and memory—and provides both a total score and subscale scores. The DRS is particularly valued in neurodegenerative disease research and clinical settings for its sensitivity to cognitive change over time and its utility in detecting cognitive impairment across the dementia spectrum.	The Trail Making Test (TMT) is a simple, brief neuropsychological test developed by Reitan in 1958 that measures visuomotor processing speed, attention, and executive function. The TMT comprises two forms: Part A, which assesses basic processing speed and visual scanning, and Part B, which assesses executive function, task-switching, and cognitive flexibility. Despite its simplicity, the TMT is highly sensitive to cognitive impairment across a wide range of neurological and psychiatric conditions and remains one of the most widely used screening tests in neuropsychology.