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  • Title: Immediate story recall in elderly individuals with memory complaints: how much does it contribute to memory assessment?
    Author: Coutinho G, Drummond C, de Oliveira-Souza R, Moll J, Tovar-Moll F, Mattos P.
    Journal: Int Psychogeriatr; 2015 Oct; 27(10):1679-86. PubMed ID: 25765673.
    Abstract:
    BACKGROUND: Prose memory tests exhibit ecological validity, but the influence of non-memory functions on immediate recall in elderly subjects with memory complaints has not been fully investigated. This study examined (1) whether the ability to immediately recall a story can distinguish among clinical controls, amnesic mild cognitive impairment (MCI) and dementia due to Alzheimer's disease (AD) and (2) which cognitive functions contribute to immediate recall performance. METHODS: A total of 73 consecutive volunteers (50 women and 23 men) aged 47-88 (mean age = 71.85 ± 9.41) and with a mean schooling level of 12.51 (SD = 4.09) participated in the experiment. All individuals were seeking specialized evaluation because of memory complaints. Diagnoses were made by considering clinical, neuropsychological, and MRI assessments collected by a multidisciplinary team of neurologists, neuropsychologists, and speech-language therapists. A total of 26 individuals were classified as clinical controls; 27 as MCI patients; and 20 as having AD dementia. All individuals in the AD group had a Clinical Dementia Rating (CDR) ≤ 1. RESULTS: Immediate recall was only able to distinguish AD subjects from MCI patients and clinical controls (p > 0.05). Stepwise multiple linear regression analysis revealed that mental status (MMSE), semantic memory (WAIS-III vocabulary) and episodic memory (RAVLT primacy) explained approximately 62% of the variance in immediate recall. CONCLUSIONS: Understanding the value and limitations of immediate story recall in distinguishing between MCI and AD may help clinicians in better choosing cognitive tests to diagnose MCI.
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