ArticleImaging neuroscience (Cambridge, Mass.)2024
The relationship between interhemispheric homotopic functional connectivity and left-right difference of intrahemispheric functional integration in the human brain.
Article in Imaging neuroscience (Cambridge, Mass.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Aberrant Functional Lateralization and Interhemispheric Synergy in High Myopia: Insights From Neurotransmitter Distribution Signatures and Machine Learning Classification.Investigative ophthalmology & visual science · 2026Article
- Hemispheric disparity theory: a dual-system framework for consciousness.Frontiers in psychology · 2026Article
- Lateralization Disruption and Dynamic Balance Alterations in Alzheimer's Disease: Impacts on Hemispheric Interaction and Cognitive Performance.Human brain mapping · 2025Article
- Resting-State Sensory-Motor Connectivity between Hand and Mouth as a Neural Marker of Socioeconomic Disadvantage, Psychosocial Stress, Cognitive Difficulties, Impulsivity, Depression, and Substance Use in Children.Journal of cellular neuroscience · 2025Article
- Causal mechanisms of individual differences in hemispheric lateralization of the face perception network: A DCM-PEB approach.Imaging neuroscience (Cambridge, Mass.)Article
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Abstract
The brain comprises left and right hemispheres, with notable distinctions in intrahemispheric functional integration observed between homotopic regions of each hemisphere. Previous studies have shown these left-right differences may be induced by interhemispheric connectivity between homotopic regions. However, no research has comprehensively investigated the relationship between lateralization of intrahemispheric functional integration and interhemispheric homotopic functional connectivity in the resting state. Based on resting-state functional connectivity, we identified two brain functional organization properties named lateralization of intrahemispheric functional integration (LI) and interhemispheric homotopic functional connectivity (HoFC), hypothesizing the former was modulated by the latter in healthy individuals. Results showed a widespread significant negative correlation between LI and HoFC among the whole brain, which could be affected by age and task state presenting a still negative pattern but with weaker strength, especially in heteromodal regions. Furthermore, two mediation models showed that HoFC significantly mediated the age and brain state effect on LI, suggesting age and task state might influence lateralization of intrahemispheric functional integration via interhemispheric homotopic functional connectivity in adults. Lastly, these two intrinsic organization properties with different heritability together correlated with the general intelligence factor in an antagonistic manner. In summary, our findings offer important and valuable insight into functional lateralization, functional homotopy, and their relationship from the perspective of intrinsic functional architecture, together with influential factors such as age and task state. These results provide direct evidence to further understand the link between the left and right hemispheres of the human brain, along with the relation to cognitive functions.
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