Everyday memory problems in alcohol abuse and dependence: Frequency, patterns and patient-proxy agreement

Area of Science:

• Neuroscience
• Psychology

Background:

• Assessing everyday memory in alcoholics is challenging due to co-occurring memory and metamemory deficits.
• Evaluating the reliability and validity of proxy ratings is clinically important for understanding memory lapses.

Purpose of the Study:

• To assess the reliability and validity of proxy memory ratings compared to patient self-reports in individuals with alcoholism.
• To investigate the frequency of memory lapses as reported by patients and their proxies.

Main Methods:

• 180 patient-proxy dyads completed the Prospective and Retrospective Memory Questionnaire (PRMQ).
• Analysis of agreement between patient and proxy ratings across different memory types and severity levels.

Main Results:

• Proxies reported significantly more prospective and retrospective memory impairments than patients.
• Patient-proxy agreement was generally poor to fair, with large discrepancies observed.
• Larger discrepancies were associated with older age, lower education, and greater disease severity.

Conclusions:

• Proxy ratings in alcoholic populations show significant memory deficits not reported by patients, indicating potential unreliability.
• Caution is advised when interpreting patient self-reports of memory in the context of alcoholism.
• Proxy ratings, despite discrepancies, demonstrated internal consistency and correlation with objective memory performance.