On cognitive tests, highly significant differences were elicited between patients and controls, confirming the tests’ sensitivities to FTD. bvFTD and FTD-ALS groups performed similarly, although with slightly greater difficulty in patients with ALS-FTD on category fluency and a sentence-ordering task that assesses grammar production.
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Cognition and behaviour in frontotemporal dementia with and without amyotrophic lateral sclerosis.
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The sentences
Patients with FTD-ALS performed more poorly on category fluency and showed a trend towards greater difficulty on sentence ordering.