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Breaking down unitization: Is the whole greater than the sum of its parts?
D'Angelo, Maria C; Noly-Gandon, Alix; Kacollja, Arber; Barense, Morgan D; Ryan, Jennifer D.
Afiliación
  • D'Angelo MC; Rotman Research Institute, Baycrest, 3560 Bathurst St., Toronto, Ontario, Canada, M6A 2E1.
  • Noly-Gandon A; Rotman Research Institute, Baycrest, 3560 Bathurst St., Toronto, Ontario, Canada, M6A 2E1.
  • Kacollja A; Rotman Research Institute, Baycrest, 3560 Bathurst St., Toronto, Ontario, Canada, M6A 2E1.
  • Barense MD; Rotman Research Institute, Baycrest, 3560 Bathurst St., Toronto, Ontario, Canada, M6A 2E1.
  • Ryan JD; Department of Psychology, University of Toronto, Toronto, Ontario, Canada.
Mem Cognit ; 45(8): 1306-1318, 2017 11.
Article en En | MEDLINE | ID: mdl-28721685
Memory impairments are often observed in aging. Specifically, older adults have difficulty binding together disparate elements (relational memory). We have recently shown that a cognitive strategy known as unitization can mitigate impaired relational learning in the transverse patterning task (TP) in both amnesia and healthy aging. This strategy allows items to be fused together through an interaction such that one item acts upon another. In the context of TP, unitization is comprised of three component processes: (1) fusion, (2) motion, and (3) semantic comprehension of action/consequence sequences. Here, we examine which of these components are sufficient to mitigate age-related impairments. Four groups of older adults were given either the full unitization strategy or one of the three component strategies. Each group of older adults showed impairments in memory for the relations among items under standard training instructions relative to a threshold that marks learning of a winner-take-all rule (elemental threshold). However, participants who were given either the full unitization strategy or the action/consequence-only strategy showed improved performance, which was maintained following the 1-hour delay. Therefore, semantically rich action/consequence interactions are sufficient to mitigate age-related relational memory impairments.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Envejecimiento / Comprensión / Aprendizaje / Trastornos de la Memoria Límite: Aged / Humans / Middle aged Idioma: En Revista: Mem Cognit Año: 2017 Tipo del documento: Article

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Envejecimiento / Comprensión / Aprendizaje / Trastornos de la Memoria Límite: Aged / Humans / Middle aged Idioma: En Revista: Mem Cognit Año: 2017 Tipo del documento: Article