Takuya Hayashi

The paper describes the iterative creation of harmonized ontologies and 3D frameworks for the basal ganglia across human and non-human primates to enable cross-species comparisons of cellular and molecular data.

This paper develops a 24-channel 3T RF coil for fMRI in awake monkeys, improving ferumoxytol-weighted functional connectivity estimation and identifying human-like functional networks.

This paper creates a cross-species spatial transcriptomic atlas of the basal ganglia in human, rhesus macaque, and common marmoset, revealing conserved molecular organization and cell type-specific compartments.

This paper introduces a method to map cortical-layer specific area boundaries in primates using myelin MRI, revealing a 182 area/subarea partition in macaques with high homology to human myelin maps.

The paper develops a method to profile resting-state fMRI connectivity variations to improve the reliability and generalizability of psychiatric disorder biomarkers across multiple centers.

This study compares unsupervised feature selection with supervised methods to identify robust resting-state functional connectivity patterns associated with psychiatric disorders.

The paper shows that dietary amino acid manipulation in marmosets affects serum metabolites and FGF21 levels, suggesting evolutionary conservation of the mechanism.

This study links neuron-axon-synapse architecture to white matter vasculature in primates using multimodal MRI and other techniques, finding correlations between vascular patterns and axonal features.

This study maps vascular networks in primate brains using ferumoxytol-weighted MRI, revealing regional variations in vascular volume and its relationship with neuronal and receptor densities.

This paper introduces two empirical methods to correct B1+ transmit field biases in T1w/T2w myelin maps, improving their accuracy for neuroanatomical and statistical analyses.

The paper investigates feedback projections in primate early visual cortex, revealing retinotopic organization and differences in connection strength between ventral and dorsal stream areas.

This paper develops a non-invasive multi-modal neuroimaging pipeline for precise brain targeting in marmosets, revealing significant intersubject variability and creating new population-based templates.

This paper outlines a multi-site MRI study aiming to establish harmonized imaging biomarkers for brain disorders across the lifespan using standardized protocols and data from healthy and patient subjects.

The paper develops a 24-channel MRI coil and adapts HCP protocols for macaques, enabling high-quality in vivo imaging and preprocessing comparable to human studies.

The paper shows that high b-value diffusion tensor imaging (DTI) metrics are strongly associated with NODDI metrics in cortical gray matter, but low b-value DTI does not accurately reflect microstructure.