Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia

Objective: To examine the differential impairment of implicit and explicit memory systems in cortical and subcortical dementias. Background: Whereas verbal priming was reported to be impaired in patients with Alzheimer Disease (AD), patients with Parkinson Disease (PD) may be relatively more impaire...

Descripción completa

Guardado en:
Detalles Bibliográficos
Publicado: 1999
Materias:
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0894878X_v12_n4_p265_Kuzis
http://hdl.handle.net/20.500.12110/paper_0894878X_v12_n4_p265_Kuzis
Aporte de:
id paper:paper_0894878X_v12_n4_p265_Kuzis
record_format dspace
spelling paper:paper_0894878X_v12_n4_p265_Kuzis2023-06-08T15:47:58Z Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia adult aged Alzheimer disease article controlled study dementia female human learning learning disorder major clinical study male memory motor performance neuropsychological test Parkinson disease priority journal task performance Aged Alzheimer Disease Analysis of Variance Case-Control Studies Dementia Female Humans Learning Male Memory Neuropsychological Tests Parkinson Disease Objective: To examine the differential impairment of implicit and explicit memory systems in cortical and subcortical dementias. Background: Whereas verbal priming was reported to be impaired in patients with Alzheimer Disease (AD), patients with Parkinson Disease (PD) may be relatively more impaired on tasks of motor skill learning. Methods: We examined 15 patients with Alzheimer disease, 10 patients with Parkinson disease and dementia (PD-D), 15 patients with PD but no dementia, and 24 age-comparable normal control subjects with a neuropsychologic battery that included tests of explicit memory (Buschke Selective Reminding Test, Benton Visual Retention Test, Digits Span) and tests of implicit memory (Word-Stem Completion task and the Maze Test). Results: AD and PD-D groups showed similar deficits on all measures of explicit memory, and performed significantly worse than PD patients without dementia and normal control subjects. On the other hand, there were no significant between-group differences in any of the measures of implicit memory. Conclusions: Our study demonstrated preserved implicit learning in the contest of severe explicit learning deficits in patients with dementia, but could not demonstrate a different profile of memory deficits between so-called cortical and subcortical dementias. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0894878X_v12_n4_p265_Kuzis http://hdl.handle.net/20.500.12110/paper_0894878X_v12_n4_p265_Kuzis
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic adult
aged
Alzheimer disease
article
controlled study
dementia
female
human
learning
learning disorder
major clinical study
male
memory
motor performance
neuropsychological test
Parkinson disease
priority journal
task performance
Aged
Alzheimer Disease
Analysis of Variance
Case-Control Studies
Dementia
Female
Humans
Learning
Male
Memory
Neuropsychological Tests
Parkinson Disease
spellingShingle adult
aged
Alzheimer disease
article
controlled study
dementia
female
human
learning
learning disorder
major clinical study
male
memory
motor performance
neuropsychological test
Parkinson disease
priority journal
task performance
Aged
Alzheimer Disease
Analysis of Variance
Case-Control Studies
Dementia
Female
Humans
Learning
Male
Memory
Neuropsychological Tests
Parkinson Disease
Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia
topic_facet adult
aged
Alzheimer disease
article
controlled study
dementia
female
human
learning
learning disorder
major clinical study
male
memory
motor performance
neuropsychological test
Parkinson disease
priority journal
task performance
Aged
Alzheimer Disease
Analysis of Variance
Case-Control Studies
Dementia
Female
Humans
Learning
Male
Memory
Neuropsychological Tests
Parkinson Disease
description Objective: To examine the differential impairment of implicit and explicit memory systems in cortical and subcortical dementias. Background: Whereas verbal priming was reported to be impaired in patients with Alzheimer Disease (AD), patients with Parkinson Disease (PD) may be relatively more impaired on tasks of motor skill learning. Methods: We examined 15 patients with Alzheimer disease, 10 patients with Parkinson disease and dementia (PD-D), 15 patients with PD but no dementia, and 24 age-comparable normal control subjects with a neuropsychologic battery that included tests of explicit memory (Buschke Selective Reminding Test, Benton Visual Retention Test, Digits Span) and tests of implicit memory (Word-Stem Completion task and the Maze Test). Results: AD and PD-D groups showed similar deficits on all measures of explicit memory, and performed significantly worse than PD patients without dementia and normal control subjects. On the other hand, there were no significant between-group differences in any of the measures of implicit memory. Conclusions: Our study demonstrated preserved implicit learning in the contest of severe explicit learning deficits in patients with dementia, but could not demonstrate a different profile of memory deficits between so-called cortical and subcortical dementias.
title Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia
title_short Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia
title_full Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia
title_fullStr Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia
title_full_unstemmed Explicit and implicit learning in patients with Alzheimer disease and Parkinson disease with dementia
title_sort explicit and implicit learning in patients with alzheimer disease and parkinson disease with dementia
publishDate 1999
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0894878X_v12_n4_p265_Kuzis
http://hdl.handle.net/20.500.12110/paper_0894878X_v12_n4_p265_Kuzis
_version_ 1768543282555518976