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Spatial navigation deficits in amnestic mild cognitive impairment with neuropsychiatric comorbidity

Research output: Contribution to journalArticle

Roxanne C Keynejad, Hana Marková, Kamila Šiffelová, Naveen Kumar, Kamil Vlček, Jan Laczó, Ellen M Migo, Jakub Hort, Michael D Kopelman

Original languageEnglish
Pages (from-to)1-13
Number of pages13
JournalAging, Neuropsychology and Cognition
Early online date28 Feb 2017
DOIs
Publication statusPublished - 28 Feb 2017

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Abstract

AIMS: To find out whether neuropsychiatric comorbidity (comMCI) influences spatial navigation performance in amnestic mild cognitive impairment (aMCI).

METHODS: We recruited aMCI patients with (n = 21) and without (n = 21) neuropsychiatric comorbidity or alcohol abuse, matched for global cognitive impairment and cognitively healthy elderly participants (HE, n = 22). They completed the Mini-Mental State Examination and a virtual Hidden Goal Task in egocentric, allocentric, and delayed recall subtests.

RESULTS: In allocentric navigation, aMCI and comMCI performed significantly worse than HE and similarly to each other. Although aMCI performed significantly worse at egocentric navigation than HE, they performed significantly better than patients with comMCI.

CONCLUSIONS: Despite the growing burden of dementia and the prevalence of neuropsychiatric symptoms in the elderly population, comMCI remains under-studied. Since trials often assess "pure" aMCI, we may underestimate patients' navigation and other deficits. This finding emphasizes the importance of taking account of the cognitive effects of psychiatric disorders in aMCI.

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