ArticleNeuroImage2026
Resting-state intracranial high-frequency oscillations and human cognition.
Article in NeuroImage, 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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11 authors.
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Abstract
In 59 drug-resistant epilepsy patients undergoing stereo-electroencephalography, we evaluated relationships between rates of 80-250 Hz high-frequency oscillations (HFO-Rs) and standardized neuropsychological scores. We also quantified how local HFO-Rs modulate functional connectivity among brain regions showing significant HFO-R-cognitive score associations. We hypothesized that regional variation in cortical HFO-Rs relates to domain-specific neuropsychological performance. We analyzed HFO-Rs in 6048 gray matter channels excluding epileptogenic and lesional cortices. Resting-state HFO-Rs were comparable between left and right hemispheric homologs, except in inferior frontal and supramarginal gyri where HFO-Rs were higher in the right, and in superior frontal gyrus where they were higher on the left side, respectively. Scores on Wechsler's scales positively covaried with HFO-Rs in right medial occipital region except visual spatial, and negatively with HFO-Rs in left insula except processing speed. HFO-Rs in left inferior temporal gyrus negatively related to calculation, passage comprehension, and spelling scores of Woodcock-Johnson tests, whereas positive relationships of these scores were seen in certain right-hemispheric parcels. For Wide-Range Assessments of Memory and Learning, HFO-Rs in left parahippocampal and right medial occipital gyri covaried positively with multiple sub-scores. Hemispheric asymmetry was noted with higher proportion of positive HFO-R-cognitive score relationships in the right hemisphere (81%vs 37%, p < 0.001), and presence of self-connections and interconnections only among right-sided parcels in networks formed by HFO-correlated functional connectivity. Our findings support a broader role of HFOs in human cognition, demonstrate modulation of long-range neural connectivity by HFO-Rs, and provide a framework for research into neurophysiology of individual neuropsychological domains.
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