OBJECTIVES: To systematically review the study designs, assessment measurements and factors related to the impairment of cognitive and functional domains of awareness of deficits in older adults with Alzheimer's disease (AD). METHOD: Search at PubMed and ISI databases about studies on awareness of deficit in AD, published from 2008 to 2013. We used the keywords "Dementia", "Alzheimer", "Awareness", "Awareness of memory" and "Awareness of Functioning", "deficits", "cognition". RESULTS: The ten articles selected used the concepts of "lack of awareness of deficits", "anosognosia", "insight", "lack of awareness of cognitive difficulties" and "limited awareness of disabilities". The etiology of impaired awareness of deficit was related to biological factors such as clinical severity, neuroanatomical associations, neuropsychiatric and psychological and social factors. The cross-sectional study design was the most used. In the cognitive domain, memory and executive functions were the two main functions investigated. In the functional domain, we found associations with executive dysfunction, social interaction decline, depression and influence of occupational performance. CONCLUSIONS: Homogeneous results are hindered by several etiological hypotheses, different terms' operationalization and lack of standardized assessment instruments. It affects the knowledge and investigation about cognitive and functional domains.
Dementia; anosognosia; awareness of deficit; cognitive functions; activities of daily living
