Abstract
OBJECTIVE: The study aims to assess the spectrum of cognitive and behavioural disorders in patients affected by Amyotrophic Lateral Sclerosis (ALS) according to the recent consensus criteria [9]. The study also intends to assess the impact of physical disability on cognitive and behavioural abnormalities. METHODS: Detailed neurological, neuropsychological and neurobehavioral evaluations were administered to 23 ALS patients, 11 Lower Motor Neuron Disease (LMND) patients and 39 healthy controls. Strong et al.'s criteria [9] were applied to diagnose the presence of cognitive/behavioural impairment. Clinical and neuropsychological scores were used for group comparisons and correlation analyses. RESULTS: In comparison with LMND and controls, a subgroup of ALS patients (∼30%) manifested executive dysfunction, which was severe enough to classify them as cognitively impaired. Action naming difficulties and short-term memory deficits were also observed. Aspontaneity, disorganization and mental rigidity reached clinical relevance in 20% of ALS patients. A small percentage of ALS patients (13%) also had comorbid dementia. The cognitive or behavioural status was not related to the clinical features of ALS. CONCLUSION: The use of consensus criteria for cognitive and behavioural impairment and the comparison with the LMND group proved useful in defining the spectrum of non-motor manifestations of ALS.
Original language | English |
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Pages (from-to) | 143-153 |
Number of pages | 11 |
Journal | Behavioural Neurology |
Volume | 27 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2013 |
Keywords
- Amyotrophic Lateral Sclerosis
- behavioural impairment
- cognitive impairment
- dysexecutive syndrome
- Lower Motor Neuron Disease
- motor disability
ASJC Scopus subject areas
- Neuropsychology and Physiological Psychology
- Clinical Neurology
- Neurology