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Neuropsychol Rehabil ; 30(10): 1905-1924, 2020 Dec.
Article in English | MEDLINE | ID: mdl-31116085

ABSTRACT

Executive functions are high-level cognitive processes commonly impaired after severe traumatic brain injury (sTBI), which may be associated with persistent anosognosia. The dysexecutive questionnaire (DEX) was designed to assess different domains of executive functioning in daily life. Two versions of the DEX exist (DEX-S completed by the patient, DEX-O completed by a relative) to compare cognitive complaints and patient's awareness. This work was aimed at studying the relevance of DEX-O for assessing daily-life limitations, the persistence of anosognosia and its association with global disability (GOSE) and magnetic resonance imaging (MRI) markers of brain alterations. Sixty-three patients (and relatives) were included within 63.4 months (±20.7) after sTBI. DEX-S and DEX-O scores were significantly positively correlated. We obtained significant correlations between DEX-S and episodic memory and phasic alert but not with executive assessment, GOSE and diffusion MRI markers. DEX-O was significantly correlated with executive function, episodic memory, attention (phasic alert sustained and divided attention), with the GOSE and the volume of the body of the corpus callosum (MRI marker). Anosognosia score (DEX-O minus DEX-S) correlated with mean diffusivity measure. These results highlight the clinical interest of DEX-O in assessing long-term disability.


Subject(s)
Agnosia/diagnosis , Brain Injuries, Traumatic/diagnosis , Cognitive Dysfunction/diagnosis , Corpus Callosum/pathology , Executive Function , Neuropsychological Tests , Adult , Agnosia/etiology , Agnosia/pathology , Agnosia/physiopathology , Attention/physiology , Brain Injuries, Traumatic/complications , Brain Injuries, Traumatic/pathology , Brain Injuries, Traumatic/physiopathology , Cognitive Dysfunction/etiology , Cognitive Dysfunction/pathology , Cognitive Dysfunction/physiopathology , Corpus Callosum/diagnostic imaging , Executive Function/physiology , Female , Humans , Magnetic Resonance Imaging , Male , Memory, Episodic , Middle Aged , Neuropsychological Tests/standards , Psychometrics , Surveys and Questionnaires
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