Predictors of saccadic reaction time among young children in Lusaka, Zambia

Jacqueline M Lauer, Juha Pyykkö, Anthony Consigli, Mpela Chembe, Tamara Billima-Mulenga, Savanna Henderson, Doug Parkerson, Jukka M Leppänen, Lindsey M Locks, Günther Fink and Peter C Rockers

PLOS ONE, 2026, vol. 21, issue 3, 1-14

Abstract: Saccadic reaction time (SRT), an assessment of visual processing speed, may afford an accurate and unbiased measure of early childhood development (ECD). Few studies have examined SRT in low- and middle-income countries (LMICs), including its drivers. We sought to identify predictors of SRT as well as to assess the correlation between SRT and concurrent measures of ECD [Global Scales of Early Development (GSED) development-for-age Z-score (DAZ), height-for-age Z-score (HAZ), and head circumference-for-age Z-score (HCZ)], among young children in Lusaka, Zambia. We conducted a sub-study among 299 Lusakan children participating in a 2x2 cluster-randomized trial. SRT was assessed at ~31 months using a screen-based setup with a Tobii Pro Fusion tracker. Associations with household, caregiver, and child characteristics were assessed using univariable regression models; predictors significant at the p

Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0339819

DOI: 10.1371/journal.pone.0339819

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