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Mapping the Literature on Nutritional Interventions in Cognitive Health: A Data-Driven Approach

Centre for Research on Ageing, Health and Wellbeing, Research School of Population Health, Australian National University, Canberra 0200, Australia
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Nutrients 2019, 11(1), 38; https://doi.org/10.3390/nu11010038
Received: 20 November 2018 / Revised: 11 December 2018 / Accepted: 19 December 2018 / Published: 24 December 2018
(This article belongs to the Special Issue Lifestyle Strategies in Cognitive Decline: Focus on Nutrition)
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Abstract

Manual review of the extensive literature covering nutrition-based lifestyle interventions to promote healthy cognitive ageing has proved educational, however, data-driven techniques can better account for the large size of the literature (tens of thousands of potentially relevant publications to date) and interdisciplinary nature, where relevant publications may be found. In this study, we present a new way to map the literature landscape, focusing on nutrition-based lifestyle interventions to promote healthy cognitive ageing. We applied a combination of citation network analysis and text mining to map out the existing literature on nutritional interventions and cognitive health. Results indicated five overarching clusters of publications, which could be further deconstructed into a total of 35 clusters. These could be broadly distinguished by the focus on lifespan stages (e.g., infancy versus older age), and specificity regarding nutrition (e.g., a narrow focus on iodine deficiency versus a broad focus on weight gain). Rather than concentrating into a single cluster, interventions were present throughout the majority of the research. We conclude that a data-driven map of the nutritional intervention literature can benefit the design of future interventions, by highlighting topics and themes that could be synthesized across currently disconnected clusters of publications. View Full-Text
Keywords: citation network analysis; text mining; nutrition intervention; cognition citation network analysis; text mining; nutrition intervention; cognition
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Walsh, E.I.; Cherbuin, N. Mapping the Literature on Nutritional Interventions in Cognitive Health: A Data-Driven Approach. Nutrients 2019, 11, 38.

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