Implicit and explicit memory for spatial information in Alzheimer's disease.
There is abundant evidence that memory impairment in dementia in patients with Alzheimer's disease (AD) is related to explicit, conscious forms of memory, whereas implicit, unconscious forms of memory function remain relatively intact or are less severely affected. Only a few studies have been perfo...
| Publicado en: | Dementia & Geriatric Cognitive Disorders Vol. 20; no. 2/3; pp. 184 - 192 |
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| Autores principales: | , , |
| Formato: | equations & formulas research tables/charts Journal Article |
| Publicado: |
Karger AG
2005
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106262692&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106262692 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14208008 GF6 jtl: Dementia & Geriatric Cognitive Disorders issn: 14208008 maglogo: N pubinfo: dt: 2005 vid: 20 iid: 2/3 pid: 2485 pub: Karger AG artinfo: ui: 106262692 106262692 2009538052 10.1159/000087233 NLM16088143 106262692 ppf: 184 ppct: 8 formats: tig: atl: Implicit and explicit memory for spatial information in Alzheimer's disease. aug: au: Kessels RPC Feijen J Postma A affil: Helmholtz Instituut, Utrecht University, Utrecht, The Netherlands sug: subj: Alzheimer's Disease Memory Evaluation Spatial Perception Evaluation Aged Aged, 80 and Over Analysis of Covariance Case Control Studies Descriptive Statistics Female Funding Source Language Tests Male Memory Disorders Complications Netherlands Neuropsychological Tests Pearson's Correlation Coefficient Photography Psychomotor Performance Univariate Statistics User-Computer Interface Human Aged: 65+ years Aged, 80 & over Female Male ab: There is abundant evidence that memory impairment in dementia in patients with Alzheimer's disease (AD) is related to explicit, conscious forms of memory, whereas implicit, unconscious forms of memory function remain relatively intact or are less severely affected. Only a few studies have been performed on spatial memory function in AD, showing that AD patients' explicit spatial memory is impaired, possibly related to hippocampal dysfunction. However, studies on implicit spatial memory in AD are lacking. The current study set out to investigate implicit and explicit spatial memory in AD patients (n=18) using an ecologically valid computer task, in which participants had to remember the locations of various objects in common rooms. The contribution of implicit and explicit memory functions was estimated by means of the process dissociation procedure. The results show that explicit spatial memory is impaired in AD patients compared with a control group (n=21). However, no group difference was found on implicit spatial function. This indicates that spared implicit memory in AD extends to the spatial domain, while the explicit spatial memory function deteriorates. Clinically, this finding might be relevant, in that an intact implicit memory function might be helpful in overcoming problems in explicit processing. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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