4.5 Article

Searching for a Relationship between Early Breastfeeding and Cognitive Development of Attention and Working Memory Capacity

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BRAIN SCIENCES
卷 13, 期 1, 页码 -

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MDPI
DOI: 10.3390/brainsci13010053

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alerting; orienting; conflict; executive function; attention; working memory capacity; breastfeeding; cognitive development

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Previous research consistently showed that exclusively breastfed infants have higher general intelligence measures compared to non-exclusive breastfed infants. However, little attention has been paid to the effects of breastfeeding on specific cognitive processes such as attention and working memory capacity. This study found no significant differences in performance on attention and working memory tasks between exclusively breastfed and non-exclusive breastfed participants, suggesting that early nutrition patterns may not affect the development of these cognitive functions.
Previous research consistently reported that subjects that were exclusively breastfed (eBF) vs. not-exclusively breastfed (neBF) during infancy (0-6 months) showed increased scores of general intelligence measures (e.g., the intelligence quotient). However, the existent literature largely neglected whether breastfeeding also affects specific cognitive processes, such as attention and working memory (WM) capacity. We tested whether eBF vs. neBF subjects showed performance differences in relation to these two core cognitive functions. The Attention Network Test (ANT), to measure alerting, orienting, and conflict, and the Change Colour Task (CCT), to measure visuospatial WM capacity, were administered to 144 participants divided according to age (6-, 10-, and 18-year-old participants) and breastfeeding (eBF or neBF during 0-6 months of life). Importantly, the sub-groups were homogenous in terms of maternal education, a factor potentially affecting the relation between breastfeeding and cognition. While we found increased performance as a function of participants' age in both tasks, we failed to observe effects related to breastfeeding, as evidenced by Bayesian analyses. These findings highlight for the first time that the pattern of nutrition provided during early infancy does not appear to affect the development of attention and WM capacity, at least starting from the age considered in the present study.

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