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The constituent structure of subjective memory questionnaires: evidence from multiple sclerosis
1Department of Human Sciences, Brunel University, Uxbridge, Middlesex, UK.
Memory (Hove, England)
|June 1, 1995
Summary
This study explored subjective memory impairments in multiple sclerosis (MS) patients using questionnaires for patients and relatives. Findings reveal a consistent five-factor structure of memory difficulties, dominated by a global subjective memory impairment.
Area of Science:
- Neuropsychology
- Cognitive Psychology
- Rehabilitation Science
Background:
- Subjective memory complaints are common in neurological conditions.
- Multiple sclerosis (MS) is associated with objective cognitive and memory deficits.
- Investigating subjective memory reports can complement objective assessments.
Purpose of the Study:
- To develop and validate a subjective memory questionnaire for multiple sclerosis patients.
- To examine the factor structure of subjective memory problems in MS.
- To compare patient and relative perceptions of memory difficulties.
Main Methods:
- A questionnaire assessing subjective memory was administered to MS patients and their relatives.
- Factor analysis was used to identify underlying dimensions of memory problems.
- Concordance between patient and relative ratings was analyzed.
Main Results:
- A five-factor structure emerged: receptive communication, route finding, absent-mindedness, face recognition, and expressive communication.
- A global subjective memory impairment factor was identified.
- High concordance was observed between patient and relative reports, with minor score differences.
Conclusions:
- Subjective memory assessment in MS reveals a consistent pattern of difficulties.
- Patient and informant reports provide valuable, largely concordant data on memory functioning.
- These findings support the use of subjective memory measures in understanding the impact of MS on daily life.