qualitative aspects of learning, recall, and recognition in dementia

Clicks: 454
ID: 143862
2010
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Abstract
Objective: To determine whether learning and serial position effect (SPE) differs qualitatively and quantitatively among different types of dementia and between dementia patients and controls; we also wished to find out whether interference affects it. Materials and Methods: We administered the Malayalam version of the Rey Auditory Verbal Learning Test (RAVLT) to 30 cognitively unimpaired controls and 80 dementia patients [30 with Alzheimer′s disease (AD), 30 with vascular dementia (VaD), and 20 with frontotemporal dementia (FTD)] with mild severity on the Clinical Dementia Rating Scale. Results: All groups were comparable on education and age, except the FTD group, who were younger. Qualitatively, the learning pattern and SPE (with primacy and recency being superior to intermediate) was retained in the AD, VaD, and control groups. On SPE in free recall, recency was superior to intermediate in the FTD group (P < 0.01 using Bonferroni correction). On recognition, the AD and VaD groups had more misses (P < 0.01), while the FTD group had more false positives (P < 0.01). Conclusion: Quantitative learning is affected by dementia. The pattern of qualitative learning remains unaltered in dementia in the early stages.
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Authors ;Ranjith Neelima;Mathuranath P;Sharma Gangadhar;Alexander Aley
Journal Journal of global antimicrobial resistance
Year 2010
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