Sandhitsu R. Das

The paper identifies shared dimensions of variation in diffusion MRI statistics and maps spatial patterns of microstructural similarity across the brain.

The paper examines subcortical and limbic volume associations with cortical thinning and neurodegenerative pathologies in postmortem brain MRI data from multiple disease groups.

The paper introduces a wireless neurostimulation device that decodes brain states and delivers closed-loop stimulation in sheep, showing reliable classification of movement and modulation of spectral activity.

This study shows white matter signals during seizures reflect communication between brain regions and differentiate epilepsy pathophysiologies, challenging past assumptions about their limited value.

The paper characterizes hippocampal subfield border variability using postmortem MRI and histology, finding consistent subfield appearance/disappearance orders and no clear diagnosis-related differences.

This paper develops a multi-modality MRI segmentation model to improve robustness of medial temporal lobe subregion segmentation in poor-quality images.

The paper develops a segmentation protocol for anterior medial temporal lobe regions and integrates it into an automated approach to improve imaging biomarkers for neurodegenerative diseases.

The paper develops deep learning algorithms to quantify seizure spread beyond onset zones and finds associations with structural connectivity and surgical outcomes.

The paper proposes a framework for selecting brain atlases to maximize their descriptive, explanatory, and predictive validity in studying neurological function and epilepsy.

This study uses joint ex vivo MRI and histology to identify distinct iron-rich gliosis patterns in FTLD-Tau and FTLD-TDP, distinguishing them from other neurodegenerative conditions.

This study creates 3D maps of neurofibrillary tangle burden in the human medial temporal lobe using ex vivo MRI and dense histology, revealing variation along the anterior-posterior axis and widespread NFT distribution.

The paper examines the link between episodic memory and temporal discounting in older adults, finding that better memory correlates with less discounting of delayed rewards.

This study examines how direct brain stimulation affects neuronal activity in humans, finding that frequency, amplitude, and electrode location influence whether stimulation inhibits or excites activity.

The paper investigates functional connectivity in the human medial temporal lobe during memory tasks, identifying theta-band synchronization and reorganization patterns associated with encoding and retrieval.

The paper shows that functional connectivity predicts changes in theta power from electrical stimulation, but only when stimulation occurs in or near white matter.

This study uses electrical brain stimulation to show that the medial temporal lobe impairs spatial and temporal memory organization in humans.

This study uses network control theory to predictably reconfigure brain network interactions through targeted neurostimulation in humans.

The paper identifies electrophysiological signatures of spatial boundaries in the human subiculum using intracranial recordings during a virtual navigation task.