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Facial memory deficits in myotonic dystrophy type 1.

Journal article
Authors Johan Lundin Kleberg
Christopher Lindberg
Stefan Winblad
Published in Acta Neurologica Scandinavica
Volume 130
Issue 5
Pages 312-318
ISSN 0001-6314
Publication year 2014
Published at Department of Psychology
Pages 312-318
Language en
Links dx.doi.org/10.1111/ane.12228
Keywords Neuropsykologi, neuromuskulär sjukdom, cognition, CTG repeats, facial memory, myotonic dystrophy type 1
Subject categories Psychology

Abstract

OBJECTIVES: To evaluate facial memory ability (FMA) in patients with myotonic dystrophy type 1 (DM1). We also explored the relationship between FMA and neuropsychological data, disease-related factors, and CTG repeat expansion size. MATERIALS AND METHODS: Patients with DM1 (n = 33) and healthy subjects (n = 30) were tested with the faces task of the Rivermead Behavioural Memory Test - Extended version (RBMT-E) and an additional set of neuropsychological tests. Clinical data were collected, and CTG repeat size was quantified in blood lymphocytes. RESULTS: Low results on the faces task were more common in patients with DM1 compared with healthy subjects (P < 0.05), with 36% of the patients showing a poor/impaired performance. DM1 patients with deficits in FMA performed significantly worse on tests measuring visual-construction ability and memory. Furthermore, these patients more often falsely recognised unknown faces as known. Deficits in FMA were not associated with any disease-related factor, including CTG repeat expansion size. CONCLUSIONS: These findings revealed deficits in FMA in the DM1 group, which was associated with reduced construction- and visual memory ability.

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