6533b85cfe1ef96bd12bc93c
RESEARCH PRODUCT
Visual memory in Alzheimer patients: effects of practice, retention interval and severity of cognitive decline.
R. HeunJürgen BierbrauerOtto Benkertsubject
GerontologyMalemedicine.medical_specialtyTime FactorsCognitive NeuroscienceAudiologyCognitionVisual memoryAlzheimer DiseaseMemory improvementmedicineDementiaHumansCognitive declineAgedMemory DisordersRecallmedicine.diseasePsychiatry and Mental healthFree recallVisual PerceptionFemaleAnalysis of varianceGeriatrics and GerontologyAlzheimer's diseasePsychologydescription
The study was aimed at estimating the effect size of practice, retention interval and dementia severity on free recall performance in Alzheimer patients. Patients met DSM-III-R criteria for dementia of Alzheimer type. Different picture sets were presented on 4 days. The forgetting curves on different days were compared using ANOVA for repeated measurements. Practice had a minor, but significant negative effect on recall performance explaining 1% of the variance in recall performance. The retention interval varied between zero and 24 h explaining 23% of the total variance. Dementia severity explained 52% of the variance. For the development of memory improvement strategies in Alzheimer patients, the repeated measurement design using intraindividual comparisons seems more powerful than group comparisons.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-03-01 | Dementia (Basel, Switzerland) |