Shahin Nasr

Accessing Mesoscale Functional Organization from Standard Functional MRI Leveraging AI-Based Super-Resolution

This paper introduces f-LENNS, an AI framework that enhances fMRI resolution without retraining, improving spatial fidelity and generalizing to atypical brain function.

Mesoscale developmental rivalry in human extrastriate visual cortex

The paper examines mesoscale developmental rivalry in human extrastriate visual cortex by comparing fMRI data from individuals with and without amblyopia, finding that compromised modules are usurped by intact ones.

Decoding of columnar-level organization across cortical depth using BOLD- and CBV-fMRI at 7 T

The paper uses MVPA to decode ocular dominance columns in V1 across cortical layers using BOLD and CBV-fMRI, finding that macrovascular contributions limit spatial specificity.

Unraveling the mesoscale resting-state functional connectivity of ocular dominance columns in humans using high-resolution functional MRI.

This study uses high-resolution fMRI to map resting-state functional connectivity in human ocular dominance columns, revealing depth- and subfield-specific patterns linked to perceptual biases.

Decreased scene-selective activity within the posterior intraparietal cortex in amblyopic adults

This study finds reduced scene-selective activity in the posterior intraparietal gyrus (PIGS) in amblyopic adults compared to controls, while other scene-processing areas remain unaffected.

Selective Functional Connectivity between Ocular Dominance Columns in the Primary Visual Cortex

This study uses high-resolution functional MRI to show that ocular dominance columns with similar ocular preference are more functionally connected than those with different preferences in the human primary visual cortex.

Using high-resolution functional MRI to differentiate impacts of strabismic and anisometropic amblyopia on evoked ocular dominance activity in humans

This study uses high-resolution fMRI to show that strabismus and anisometropia affect ocular dominance responses differently in the human visual cortex.

High resolution quantitative and functional MRI indicate lower myelination of thin and thick stripes in human secondary visual cortex

This study uses high-resolution MRI to show that thin and thick stripes in human V2 have lower myelination compared to surrounding gray matter.

Two interdigitated fine-scale channels for encoding motion and stereopsis within the human magnocellular stream

The paper uses high-resolution fMRI to show two interdigitated channels in human extrastriate cortex for motion and stereopsis processing, consistent across stimuli and with strong intra-channel connectivity.