Social and Emotional Self-perception in People With Mild to Moderate Alzheimer Disease Compared to Caregiver's Perspective in Brazil.

Introduction: There was limited evidence on the ability of people with Alzheimer disease (AD) to perceive their own emotions. We aimed to compare socioemotional self-perception in persons with mild and moderate AD to their caregivers' perspective.

Method: Cross-sectional assessment of people with mild (n=102) and moderate (n=59) AD and caregivers. Each participant and their caregivers completed the socioemotional questionnaire (SEQ); a 30-item rating scale assessing five dimensions of socioemotional cognition (empathy, emotion recognition, social conformity, antisocial behavior, sociability). We evaluated global cognition, awareness of disease, dementia severity, functionality, neuropsychiatric symptoms, and caregiver burden.

Results: Participants in the mild and moderate groups showed a similar pattern of socioemotional self-perception. They differed in the anger domain of the emotion recognition subscale, in the antisocial behavior dimension, and in the sociability subscale. In contrast, the caregivers' perspective of people with mild and moderate AD showed a significant difference in the emotion recognition domain for fear, disgust, and sadness. There were also significant differences in the empathy subscale for disgust and in the sociability subscale. Cognition was correlated with self-reported reduced perception in social conformity, antisocial behavior, and sociability. Awareness was correlated with emotion recognition, antisocial behavior, and sociability. Neuropsychiatric symptoms were correlated with empathy, emotion recognition, and social conformity.

Conclusions: Significant differences were found between caregivers' perspectives of socioemotional functioning in people with mild and moderate AD. Meanwhile, there were minimal differences in self-perception between the mild and moderate groups.