Recollection, familiarity, and cortical reinstatement: a multivoxel pattern analysis.
Neuron
; 63(5): 697-708, 2009 Sep 10.
Article
en En
| MEDLINE
| ID: mdl-19755111
ABSTRACT
Episodic memory retrieval is thought to involve reinstatement of the neurocognitive processes engaged when an episode was encoded. Prior fMRI studies and computational models have suggested that reinstatement is limited to instances in which specific episodic details are recollected. We used multivoxel pattern-classification analyses of fMRI data to investigate how reinstatement is associated with different memory judgments, particularly those accompanied by recollection versus a feeling of familiarity (when recollection is absent). Classifiers were trained to distinguish between brain activity patterns associated with different encoding tasks and were subsequently applied to recognition-related fMRI data to determine the degree to which patterns were reinstated. Reinstatement was evident during both recollection- and familiarity-based judgments, providing clear evidence that reinstatement is not sufficient for eliciting a recollective experience. The findings are interpreted as support for a continuous, recollection-related neural signal that has been central to recent debate over the nature of recognition memory processes.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Recuerdo Mental
/
Procesamiento de Señales Asistido por Computador
/
Encéfalo
/
Reconocimiento en Psicología
Tipo de estudio:
Prognostic_studies
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Neuron
Asunto de la revista:
NEUROLOGIA
Año:
2009
Tipo del documento:
Article
País de afiliación:
Estados Unidos