Trends in Cognitive Sciences, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Published: April 17, 2025
In blind humans, the “visual” cortex responds to linguistic stimuli, such as words and sentences. This is sometimes taken evidence that this brain region supports starkly different computations in sighted individuals. Here, we challenge view show that, during word processing, visual areas these two populations represent same semantic dimension – knowledge about physical properties of referents. Using analysis fMRI activation patterns, found both congenitally participants represented differences between individual words. groups, patterns for reflected physical, but not conceptual similarity Furthermore, between-group correlations were comparable within-group correlations. Finally, groups showed greatest “representational connectivity” occipitotemporal areas. Overall, our findings suggest responses stimuli individuals are driven by representational mechanisms functional also adult brain. individuals, information referents might be backprojected areas, from cortex, support predictions, imagery, visuospatial thinking. mechanism preserved and, combined with increased excitability drive strong stimuli.
Language: Английский
Citations
0
Published: April 17, 2025
In blind humans, the “visual” cortex responds to linguistic stimuli, such as words and sentences. This is sometimes taken evidence that this brain region supports starkly different computations in sighted individuals. Here, we challenge view show that, during word processing, visual areas these two populations represent same semantic dimension – knowledge about physical properties of referents. Using analysis fMRI activation patterns, found both congenitally participants represented differences between individual words. groups, patterns for reflected physical, but not conceptual similarity Furthermore, between-group correlations were comparable within-group correlations. Finally, groups showed greatest “representational connectivity” occipitotemporal areas. Overall, our findings suggest responses stimuli individuals are driven by representational mechanisms functional also adult brain. individuals, information referents might be backprojected areas, from cortex, support predictions, imagery, visuospatial thinking. mechanism preserved and, combined with increased excitability drive strong stimuli.
Language: Английский
Citations
0
Frontiers in Neurology, Journal Year: 2024, Volume and Issue: 15
Published: June 25, 2024
How cortical functional reorganization occurs after hearing loss in preschool children with congenital sensorineural (CSNHL) is poorly understood. Therefore, we used resting-state MRI (rs-fMRI) to explore the characteristics of these patents. Sixty-three CSNHL and 32 healthy controls (HCs) were recruited, Categories Auditory Performance (CAP) scores determined at 6-month follow-up cochlear implantation (CI). First, rs-fMRI data preprocessed, amplitude low-frequency fluctuation (ALFF) regional homogeneity (ReHo) calculated. Second, whole-brain connectivity (FC) analysis was performed using bilateral primary auditory cortex as seed points. Finally, Spearman correlation between differential ALFF, ReHo FC values CAP score. ALFF showed that had lower prefrontal superior temporal gyrus than HCs, but higher thalamus calcarine gyrus. And some abnormal brain regions weak negatively correlated score (p < 0.05). The gyrus, part left insular lower, whereas thalamus, right caudate nucleus precentral higher, HCs. However, there no Using (PAC) seed-based further revealed enhanced visual cortex, proprioceptive motor cortex. negative correlations occipital lobe, postcentral weakly After deprivation CSNHL, local functions somatic are changed, plays a regulatory role this process. There or compensation children's areas, which may not be conducive language recovery CI deaf children.
Language: Английский
Citations
2
Trends in Cognitive Sciences, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Citations
0