Rune W. Berg

This study shows that spinal motor populations use rotational dynamics in a low-dimensional neural manifold for locomotion, which persists after spinal cord injury and suggests an intrinsic spinal attractor mechanism.

The paper maps neurite orientations across the spinal cord using MRI and microscopy, revealing regional differences in fiber organization.

This study shows that optogenetic stimulation of the rostral pedunculotegmental nucleus disrupts cue-guided behavior in rats when stimulation overlaps with cue presentation, but not when it occurs before or after.

The paper proposes spatial and network principles for locomotion generation in the spinal cord using a mouse model and integrates single-cell RNA sequencing with spatial transcriptomics.

This paper introduces a microfluidic axialtrode for multimodal neural interfacing, enabling spatially distributed optogenetics, electrophysiological recording, and drug delivery across brain layers.

The paper investigates neural dynamics underlying walking and stopping in rats, finding locomotion follows a limit-cycle attractor and stopping transitions to a fixed-point attractor.

This study evaluates biodegradable PDLLA optical fibers as neural interfaces in mice, showing degradation and efficient SW-NIR light transmission with potential for optogenetics and therapy.

This paper develops a mid-infrared laser source for photoacoustic brain imaging of myelin-rich regions in mice using gas-filled hollow-core fiber lasers.

This paper develops polymer optical fiber tapers for implantable neural devices, demonstrating their potential for homogeneous light delivery in vitro.

This paper introduces a flexible optrode for multi-site optical stimulation and electrical recording in the spinal cord, demonstrating its potential for therapeutic applications.

The paper investigates how PPN stimulation induces movement arrest in rats and shows it disrupts hippocampal theta rhythm without emotional components.

This paper develops a soft, infrared neuromodulation device that records electrophysiological signals in rats with minimal tissue response.

The paper shows that spinal motor networks generate movement through rotational dynamics in neural activity rather than alternating activity, with rotation radius correlating to muscle force.

The paper estimates gray and white matter volumes in human spinal cords using MRI and deep learning, finding small gray matter volumes comparable to a fingertip.

The paper evaluates 9 lipophilic dyes for vasculature staining in cleared brains, finding some are compatible with lipid clearing and cost-effective for future studies.

The paper uses synaptic correlation measurements to infer the wiring architecture of a spinal CPG network, finding sparse convergent connectivity or active decorrelation.

This paper reviews advances in CLARITY tissue clearing methods and discusses their applications and areas for improvement.

The paper identifies a fluctuation-driven regime in spinal motor networks, showing half of neurons spend significant time in this regime across multiple motor behaviors.

The paper tests modified lipophilic dyes for CLARITY compatibility, finding that CM-DiI and FM 1-43FX remain in tissue after lipid-clearing with CM-DiI showing the sharpest signal.