Methodological issues and controversies in research on cognitive disorders
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Dementia & Neuropsychologia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642010000400268 |
Resumo: | Abstract Research on cognitive disorders is challenging due to the complexity of functions studied and to the numerous variables involved. First, the concept of cognition as a mediated (semiotic) and systemic activity is reviewed. According to this concept, the result of a local lesion is not an isolated symptom but a syndrome, and the best neuropsychological approach is an analysis based on appropriate tests to disclose double dissociations and thereby provide clues to brain-behavior relationships. This approach takes into account the influence of task-relevant variables (confounders) related to the patient (e.g., age, education), to the lesion (size, etiology), and to the tests and testing conditions (ecological validity, examiner's experience), which need to be controlled and analyzed in multivariate statistical analyses, as illustrated in research on medial temporal lobe epilepsy. Other controversial issues such as single and double dissociations, single-case versus group studies, and the lesion method are also examined. |
id |
ANCC-1_1722c94a48b03225b7350ce62a49de1a |
---|---|
oai_identifier_str |
oai:scielo:S1980-57642010000400268 |
network_acronym_str |
ANCC-1 |
network_name_str |
Dementia & Neuropsychologia |
repository_id_str |
|
spelling |
Methodological issues and controversies in research on cognitive disorderscognitionneuropsychological testsdouble dissociationlesion localizationcognitive disorder researchepilepsyAbstract Research on cognitive disorders is challenging due to the complexity of functions studied and to the numerous variables involved. First, the concept of cognition as a mediated (semiotic) and systemic activity is reviewed. According to this concept, the result of a local lesion is not an isolated symptom but a syndrome, and the best neuropsychological approach is an analysis based on appropriate tests to disclose double dissociations and thereby provide clues to brain-behavior relationships. This approach takes into account the influence of task-relevant variables (confounders) related to the patient (e.g., age, education), to the lesion (size, etiology), and to the tests and testing conditions (ecological validity, examiner's experience), which need to be controlled and analyzed in multivariate statistical analyses, as illustrated in research on medial temporal lobe epilepsy. Other controversial issues such as single and double dissociations, single-case versus group studies, and the lesion method are also examined.Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento2010-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642010000400268Dementia & Neuropsychologia v.4 n.4 2010reponame:Dementia & Neuropsychologiainstname:Associação de Neurologia Cognitiva e do Comportamento (ANCC)instacron:ANCC10.1590/S1980-57642010DN40400004info:eu-repo/semantics/openAccessDamasceno,Benito Pereiraeng2016-07-22T00:00:00Zoai:scielo:S1980-57642010000400268Revistahttp://www.demneuropsy.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||demneuropsy@uol.com.br1980-57641980-5764opendoar:2016-07-22T00:00Dementia & Neuropsychologia - Associação de Neurologia Cognitiva e do Comportamento (ANCC)false |
dc.title.none.fl_str_mv |
Methodological issues and controversies in research on cognitive disorders |
title |
Methodological issues and controversies in research on cognitive disorders |
spellingShingle |
Methodological issues and controversies in research on cognitive disorders Damasceno,Benito Pereira cognition neuropsychological tests double dissociation lesion localization cognitive disorder research epilepsy |
title_short |
Methodological issues and controversies in research on cognitive disorders |
title_full |
Methodological issues and controversies in research on cognitive disorders |
title_fullStr |
Methodological issues and controversies in research on cognitive disorders |
title_full_unstemmed |
Methodological issues and controversies in research on cognitive disorders |
title_sort |
Methodological issues and controversies in research on cognitive disorders |
author |
Damasceno,Benito Pereira |
author_facet |
Damasceno,Benito Pereira |
author_role |
author |
dc.contributor.author.fl_str_mv |
Damasceno,Benito Pereira |
dc.subject.por.fl_str_mv |
cognition neuropsychological tests double dissociation lesion localization cognitive disorder research epilepsy |
topic |
cognition neuropsychological tests double dissociation lesion localization cognitive disorder research epilepsy |
description |
Abstract Research on cognitive disorders is challenging due to the complexity of functions studied and to the numerous variables involved. First, the concept of cognition as a mediated (semiotic) and systemic activity is reviewed. According to this concept, the result of a local lesion is not an isolated symptom but a syndrome, and the best neuropsychological approach is an analysis based on appropriate tests to disclose double dissociations and thereby provide clues to brain-behavior relationships. This approach takes into account the influence of task-relevant variables (confounders) related to the patient (e.g., age, education), to the lesion (size, etiology), and to the tests and testing conditions (ecological validity, examiner's experience), which need to be controlled and analyzed in multivariate statistical analyses, as illustrated in research on medial temporal lobe epilepsy. Other controversial issues such as single and double dissociations, single-case versus group studies, and the lesion method are also examined. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-12-01 |
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=S1980-57642010000400268 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642010000400268 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1980-57642010DN40400004 |
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.4 n.4 2010 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 |
_version_ |
1754212930011791360 |