ArticleFrontiers in psychiatry2022
Studying hemispheric lateralization of 4-month-old infants from different language groups through near-infrared spectroscopy-based connectivity.
Article in Frontiers in psychiatry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Sex differences in early brain development in a multi-site ASD likelihood cohort.Frontiers in computational neuroscience · 2026Article
- Parallel electrophysiological and prefrontal hemodynamic alterations during stroop task performance in major depressive disorder: a simultaneous EEG-fNIRS study.Frontiers in psychiatry · 2026Article
- Significant interactions in infant operculum regions when exposed to a bilingual environment: a resting-state fNIRS study.Neurophotonics · 2025Article
- Lateralization difference in functional activity during Stroop tasks: a functional near-infrared spectroscopy and EEG simultaneous study.Frontiers in psychiatry · 2023Article
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Abstract
Introduction: Early monolingual versus bilingual experience affects linguistic and cognitive processes during the first months of life, as well as functional activation patterns. The previous study explored the influence of a bilingual environment in the first months of life on resting-state functional connectivity and reported no significant difference between language groups. Methods: To further explore the influence of a bilingual environment on brain development function, we used the resting-state functional near-infrared spectroscopy public dataset of the 4-month-old infant group in the sleep state (30 Spanish; 33 Basque; 36 bilingual). Wavelet Transform Coherence, graph theory, and Granger causality methods were performed on the functional connectivity of the frontal lobes. Results: The results showed that functional connectivity strength was significantly higher in the left hemisphere than that in the right hemisphere in both monolingual and bilingual groups. The graph theoretic analysis showed that the characteristic path length was significantly higher in the left hemisphere than in the right hemisphere for the bilingual infant group. Contrary to the monolingual infant group, the left-to-right direction of information flow was found in the frontal regions of the bilingual infant group in the effective connectivity analysis. Discussion: The results suggested that the left hemispheric lateralization of functional connectivity in frontal regions is more pronounced in the bilingual group compared to the monolingual group. Furthermore, effective connectivity analysis may be a useful method to investigate the resting-state brain networks of infants.
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