Intact implicit verbal relational memory in medial temporal lobe amnesia.
Neuropsychologia
; 50(8): 2100-6, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-22609574
ABSTRACT
To elucidate the role of the hippocampus in unaware relational memory, the present study examined the performance of amnesic patients with medial temporal lobe (MTL) lesions on a cued category-exemplar generation task. In contrast to a prior study in which amnesic patients showed impaired performance (Verfaellie et al., Cognitive, Affective, and Behavioral Neuroscience, 2006, 6, 91-101), the current study employed a task that required active processing of the context word at test. In this version of the task, amnesic patients, like control participants, showed enhanced category exemplar priming when the context word associated with the target at study was reinstated at test. The finding of intact implicit memory for novel associations following hippocampal lesions in a task that requires flexible use of retrieval cues is inconsistent with a relational memory view that suggests that the hippocampus is critical for all forms of relational memory, regardless of awareness. Instead, it suggests that unaware memory for within-domain associations does not require MTL mediation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Rememoração Mental
/
Lobo Temporal
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Formação de Conceito
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Priming de Repetição
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Amnésia
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Hipocampo
/
Memória
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Aged
/
Aged80
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article