ArticleScientific reports2026
Neural signatures of stream segregation from childhood to adulthood.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
When faced with noisy environments, listeners perform auditory scene analysis, which allows them to parse the auditory target from concurrent interferences. Stream segregation involves organizing similar sound waves into a coherent stream, while distinguishing dissimilar acoustic components and attributing them to distinct sources. Two event-related potential components have been identified as "neural signatures" of stream segregation: the Object-Related Negativity (ORN) and the P400. Our study aims to examine (i) the maturation of neural and behavioural correlates of stream segregation and (ii) the development of the relationship between stream segregation and speech perception in noise. ORN/P400 were recorded while 8-23 year-olds performed an active stream segregation task based on temporal coherence. Participants also performed speech identification in noise tasks (behaviourally). Behavioural results indicate an improvement in both stream segregation and speech perception in noise from childhood to adulthood. The amplitude of the ORN and latency of the P400 decreased throughout development. The individual probability of showing a P400 significantly increased from childhood to adulthood. When restricting the analysis to those individuals who showed a significant ORN/P400, amplitude and latency of both ORN and P400 decreased throughout development. Critically, P400 amplitude significantly predicts stream segregation performance. Our results suggest that the neural mechanisms underlying stream segregation follow a prolonged maturation trajectory, supporting the progressive maturation of auditory scene analysis and speech perception in noise.
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