Validation of the Mnemonic Similarity Task - Context Version
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
;
40(4): 432-440, Oct.-Dec. 2018. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-959248
ABSTRACT
Objective:
Pattern separation (PS) is the ability to represent similar experiences as separate, non-overlapping representations. It is usually assessed via the Mnemonic Similarity Task - Object Version (MST-O) which, however, assesses PS performance without taking behavioral context discrimination into account, since it is based on pictures of everyday simple objects on a white background. We here present a validation study for a new task, the Mnemonic Similarity Task - Context Version (MST-C), which is designed to measure PS while taking behavioral context discrimination into account by using real-life context photographs.Methods:
Fifty healthy subjects underwent the two MST tasks to assess convergent evidence. Instruments assessing memory and attention were also administered to study discriminant evidence. The test-retest reliability of MST-C was analyzed.Results:
Weak evidence supports convergent validity between the MST-C task and the MST-O as measures of PS (rs = 0.464; p < 0.01); PS performance assessed via the MST-C did not correlate with memory or attention; a moderate test-retest reliability was found (rs = 0.595; p < 0.01).Conclusion:
The MST-C seems useful for assessing PS performance conceptualized as the ability to discriminate complex and realistic spatial contexts. Future studies are welcome to evaluate the validity of the MST-C task as a measure of PS in clinical populations.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Reconocimiento Visual de Modelos
/
Memoria
/
Pruebas Neuropsicológicas
Tipo de estudio:
Estudio pronóstico
Límite:
Adulto
/
Femenino
/
Humanos
/
Masculino
País/Región como asunto:
Europa
Idioma:
Inglés
Revista:
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
Asunto de la revista:
Psiquiatria
Año:
2018
Tipo del documento:
Artículo
País de afiliación:
Italia
Institución/País de afiliación:
Università di Firenze/IT
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