Douglas N. Greve

Building an open infrastructure for molecular neuroimaging: standards and tools from the OpenNeuroPET initiative

The paper describes the OpenNeuroPET initiative, which develops standards and open-source tools to standardize and share PET neuroimaging data, enhancing reproducibility and collaboration.

A multi-ancestry polygenic risk score for Alzheimer disease is associated with cognitive decline, hippocampal atrophy and neuropathological hallmarks in diverse populations

This paper develops an APOE-independent polygenic risk score for Alzheimer's disease that shows associations with cognitive decline and neuropathological markers across diverse populations.

On the analysis of functional PET (fPET)-FDG: baseline mischaracterization can introduce artifactual metabolic (de)activations

This study shows that incorrect baseline modeling in fPET-FDG can create false metabolic activity patterns, affecting GLM analyses.

Sustaining wakefulness: Brainstem connectivity in human consciousness

The paper maps brainstem connections sustaining wakefulness using ex vivo diffusion MRI, immunohistochemistry, and in vivo 7 Tesla functional MRI.

Empirical Transmit Field Bias Correction of T1w/T2w Myelin Maps

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.

Scalable mapping of myelin and neuron density in the human brain with micrometer resolution

This paper quantifies myelin content and neuron density in the human brain using OCT, finding a strong linear relationship between scattering coefficient and myelin content.

Using diffusion MRI data acquired with ultra-high gradients to improve tractography in routine-quality data

This study improves automated white-matter tractography in lower-quality diffusion MRI data by training on high-quality Connectom data and manually annotated pathways.

Reliability and sensitivity of two whole-brain segmentation approaches included in FreeSurfer - ASEG and SAMSEG

This paper compares two whole-brain segmentation methods, ASEG and SAMSEG, in FreeSurfer, finding SAMSEG provides more reliable and sensitive measurements for detecting longitudinal changes and Alzheimer's disease-related atrophy.

A High-Resolution In Vivo Atlas of the Human Brain's Benzodiazepine Binding Site of GABAA Receptors

The paper creates a high-resolution in vivo atlas of benzodiazepine receptor densities in the human brain using PET and autoradiography data, linking it to GABAAR subunit mRNA expression.

Age-differences in functional asymmetry during memory retrieval revisited: no evidence for contralateral over-activation or compensation

The paper examines age-related differences in brain asymmetry during memory retrieval using fMRI and finds no evidence for compensatory contralateral over-activation in older adults.

Accurate Nonlinear Mapping between MNI Volumetric and FreeSurfer Surface Coordinate Systems

This paper evaluates methods for mapping between MNI152/Colin27 and fsaverage coordinate systems, finding that registration fusion with ANTs performs best for new subjects.

Joint analysis of area and thickness as a replacement for the analysis of cortical volume

The paper shows that joint analysis of cortical area and thickness is more sensitive than volume for studying brain anatomy, and proposes a permutation-based method to replace volume analysis.