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The Relationship Between Facial Emotion Recognition and Executive Function Varies Depending on the Level of Cognitive
Michelle Brandt1, Felipe Oliveira1, Tatiana Belfort1
1Laboratory of Studies on Awareness and Dementia, Post-graduate Program of Psychiatry and Mental Health, Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Background:
Cognitive domains related to attention and executive functions (a set of cognitive processes that regulate, control, and manage other cognitive abilities) seem to influence the recognition of facial expressions in people with Alzheimer's disease (AD).
Purpose:
We examined the relationship between facial expression recognition, global cognition and executive function in people with AD according to their cognitive level.
Research Design:
In a cross-sectional design, we included 130 participants with AD divided into three groups based on their Mini-Mental State Examination (MMSE) scores: MMSE 1 (scores 23-28), MMSE 2 (scores 17-22), and MMSE 3 (scores 11-16). Facial expression recognition ability was analyzed using the Faces Test. Executive function was analyzed using the Trail Making Test (TMT), the Verbal Fluency Test (VFT), the Semantic Fluency Test (SFT), the Digit Span Forward (DSF) and Backward (DSB) tests, and the Clock Drawing Test (CDT).
Results:
In MMSE 1 group difficulties in divided attention and cognitive flexibility impacted the accuracy of facial expression recognition. In the MMSE 2 group, facial expression recognition was related to impairment in working memory. In the MMSE 3 group, the impact on facial expression recognition was directly related to visuoconstructive abilities.
Conclusions:
We observed that the executive resources involved in each evaluated group differed in terms of facial recognition task performance efficacy. Interventions at stimulating executive and visuoconstructive abilities in people with AD may contribute to better preservation of facial expression recognition.
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