Involution of categorical thinking processes in Alzheimer's disease: Preliminary results
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Dementia & Neuropsychologia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642008000100057 |
Resumo: | Abstract Alzheimer's disease (AD) is a degenerative brain disorder characterized by progressive losses in cognitive functions, including memory. The sequence of these losses may correspond to the inverse order of the normal sequence of ontogenetic cognitive acquisitions, a process named retrogenesis. One of the acquisitions that improve in normal development is the ability to retrieve previously acquired categorical knowledge from semantic memory in order to guide associative thinking and memory processes; consequently, children become able to associate verbal stimuli in more complex taxonomic ways and to use this knowledge to improve their recall. Objective: In this study, we investigated if AD-related deterioration of semantic memory involves a decrease in categorical thinking processes with progression of the disease, according to the retrogenesis hypothesis. Methods: We compared the performance of AD patients at mild and moderate stages, and of groups of 7, 10 and 14-year-old children in tasks of free association along with recall tasks of perceptually and semantically related stimuli. Results: ANOVAS showed a decrease in taxonomic associations and an increase in diffuse associations between mild and moderate stages, corresponding to the inverse order shown by the child groups. At the moderate AD stage, the pattern was similar to that of 7-year-old children. Both groups of patients performed worse than child groups in recall tasks. Conclusions: These results corroborate the hypothesis of an involution of the processes of categorical associative thinking in the course of the disease. |
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Involution of categorical thinking processes in Alzheimer's disease: Preliminary resultsAlzheimer's diseaseneuropsychological testsmemorythinkingAbstract Alzheimer's disease (AD) is a degenerative brain disorder characterized by progressive losses in cognitive functions, including memory. The sequence of these losses may correspond to the inverse order of the normal sequence of ontogenetic cognitive acquisitions, a process named retrogenesis. One of the acquisitions that improve in normal development is the ability to retrieve previously acquired categorical knowledge from semantic memory in order to guide associative thinking and memory processes; consequently, children become able to associate verbal stimuli in more complex taxonomic ways and to use this knowledge to improve their recall. Objective: In this study, we investigated if AD-related deterioration of semantic memory involves a decrease in categorical thinking processes with progression of the disease, according to the retrogenesis hypothesis. Methods: We compared the performance of AD patients at mild and moderate stages, and of groups of 7, 10 and 14-year-old children in tasks of free association along with recall tasks of perceptually and semantically related stimuli. Results: ANOVAS showed a decrease in taxonomic associations and an increase in diffuse associations between mild and moderate stages, corresponding to the inverse order shown by the child groups. At the moderate AD stage, the pattern was similar to that of 7-year-old children. Both groups of patients performed worse than child groups in recall tasks. Conclusions: These results corroborate the hypothesis of an involution of the processes of categorical associative thinking in the course of the disease.Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento2008-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642008000100057Dementia & Neuropsychologia v.2 n.1 2008reponame:Dementia & Neuropsychologiainstname:Associação de Neurologia Cognitiva e do Comportamento (ANCC)instacron:ANCC10.1590/S1980-57642009DN20100012info:eu-repo/semantics/openAccessMello,Claudia Berlim deAbrisqueta-Gomez,JacquelineXavier,Gilberto FernandoBueno,Orlando Francisco Amodeoeng2016-09-13T00:00:00Zoai:scielo:S1980-57642008000100057Revistahttp://www.demneuropsy.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||demneuropsy@uol.com.br1980-57641980-5764opendoar:2016-09-13T00:00Dementia & Neuropsychologia - Associação de Neurologia Cognitiva e do Comportamento (ANCC)false |
dc.title.none.fl_str_mv |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results |
title |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results |
spellingShingle |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results Mello,Claudia Berlim de Alzheimer's disease neuropsychological tests memory thinking |
title_short |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results |
title_full |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results |
title_fullStr |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results |
title_full_unstemmed |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results |
title_sort |
Involution of categorical thinking processes in Alzheimer's disease: Preliminary results |
author |
Mello,Claudia Berlim de |
author_facet |
Mello,Claudia Berlim de Abrisqueta-Gomez,Jacqueline Xavier,Gilberto Fernando Bueno,Orlando Francisco Amodeo |
author_role |
author |
author2 |
Abrisqueta-Gomez,Jacqueline Xavier,Gilberto Fernando Bueno,Orlando Francisco Amodeo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mello,Claudia Berlim de Abrisqueta-Gomez,Jacqueline Xavier,Gilberto Fernando Bueno,Orlando Francisco Amodeo |
dc.subject.por.fl_str_mv |
Alzheimer's disease neuropsychological tests memory thinking |
topic |
Alzheimer's disease neuropsychological tests memory thinking |
description |
Abstract Alzheimer's disease (AD) is a degenerative brain disorder characterized by progressive losses in cognitive functions, including memory. The sequence of these losses may correspond to the inverse order of the normal sequence of ontogenetic cognitive acquisitions, a process named retrogenesis. One of the acquisitions that improve in normal development is the ability to retrieve previously acquired categorical knowledge from semantic memory in order to guide associative thinking and memory processes; consequently, children become able to associate verbal stimuli in more complex taxonomic ways and to use this knowledge to improve their recall. Objective: In this study, we investigated if AD-related deterioration of semantic memory involves a decrease in categorical thinking processes with progression of the disease, according to the retrogenesis hypothesis. Methods: We compared the performance of AD patients at mild and moderate stages, and of groups of 7, 10 and 14-year-old children in tasks of free association along with recall tasks of perceptually and semantically related stimuli. Results: ANOVAS showed a decrease in taxonomic associations and an increase in diffuse associations between mild and moderate stages, corresponding to the inverse order shown by the child groups. At the moderate AD stage, the pattern was similar to that of 7-year-old children. Both groups of patients performed worse than child groups in recall tasks. Conclusions: These results corroborate the hypothesis of an involution of the processes of categorical associative thinking in the course of the disease. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642008000100057 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642008000100057 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1980-57642009DN20100012 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento |
publisher.none.fl_str_mv |
Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento |
dc.source.none.fl_str_mv |
Dementia & Neuropsychologia v.2 n.1 2008 reponame:Dementia & Neuropsychologia instname:Associação de Neurologia Cognitiva e do Comportamento (ANCC) instacron:ANCC |
instname_str |
Associação de Neurologia Cognitiva e do Comportamento (ANCC) |
instacron_str |
ANCC |
institution |
ANCC |
reponame_str |
Dementia & Neuropsychologia |
collection |
Dementia & Neuropsychologia |
repository.name.fl_str_mv |
Dementia & Neuropsychologia - Associação de Neurologia Cognitiva e do Comportamento (ANCC) |
repository.mail.fl_str_mv |
||demneuropsy@uol.com.br |
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1754212929262059520 |