Persona:
Martín-Aragoneses, María Teresa

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0000-0003-3005-7174
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Martín-Aragoneses
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María Teresa
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2021 - 20232
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Autor: Rio, David del × search.filters.applied.f.itemFacultad: Facultad de Educación ×

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Mostrando 1 - 2 de 2
  • Miniatura
    Publicación
    Task Demands and Sentence Reading Comprehension among Healthy Older Adults: The Complementary Roles of Cognitive Reserve and Working Memory
    (MDPI, 2023-03-01) Martín-Aragoneses, María Teresa; Mejuto, Gema; Rio, David del; Fernandes, Sara Margarida; Rodrigues, Pedro E.S.; López Higes, Ramón
    Ageing entails different functional brain changes. Education, reading experience, and leisure activities, among others, might contribute to the maintenance of cognitive performance among older adults and are conceptualised as proxies for cognitive reserve. However, ageing also conveys a depletion of working memory capacity, which adversely impacts language comprehension. This study investigated how cognitive reserve proxies and working memory jointly predict the performance of healthy older adults in a sentence reading comprehension task, and how their predictive value changes depending on sentence structure and task demands. Cognitively healthy older adults (n = 120) completed a sentence–picture verification task under two conditions: concurrent viewing of the sentence and picture or their sequential presentation, thereby imposing greater demands on working memory. They also completed a questionnaire on cognitive reserve proxies as well as a verbal working memory test. The sentence structure was manipulated by altering the canonical word order and modifying the amount of propositional information. While the cognitive reserve was the main predictor in the concurrent condition, the predictive role of working memory increased under the sequential presentation, particularly for complex sentences. These findings highlight the complementary roles played by cognitive reserve and working memory in the reading comprehension of older adults.
  • Miniatura
    Publicación
    Preserved semantic categorical organization in mild cognitive impairment: A network analysis of verbal fluency
    (Elsevier, 2021-07-01) Nevado, Ángel; Rio, David del; Martín-Aragoneses, María Teresa; Prados, José M.; López Higes, Ramón
    The decline in semantic verbal fluency as we age may originate from both semantic memory degradation and executive function deficits. We investigated to what extent semantic memory is organized into categories in older adults with mild cognitive impairment (n = 81) and healthy controls (n = 83). We obtained the semantic networks automatically from the probability of co-occurrence of words in a verbal fluency test and characterized them with graph-theory tools. We found that the degree of categorical organization was similar for both diagnostic groups, but there was a higher tendency to transition to other categories during word production in the patient group. These results suggest that the semantic network is preserved in mild cognitive impairment, but also that the existing associations are exploited less efficiently during long-term memory search, possibly because of deficits in executive function.