Alan Urban

Cooperative processing of visual threat across collicular pathways

This study investigates how parallel pathways in the superior colliculus cooperate to support visually evoked escape behaviors through cell-type-specific inhibition and functional imaging.

Modular chronic cranial platform for longitudinal functional ultrasound, optical, and ECoG recording in a gyrencephalic model species

This paper introduces a modular chronic cranial platform for longitudinal multimodal recording in a gyrencephalic brain, validated in cats with functional implants lasting up to 3.3 years.

Volumetric functional ultrasound imaging in macaques

This paper introduces 3D-fUS, a high-resolution imaging technique for macaques, showing it can detect single-trial responses and has faster dynamics than fMRI.

OfUSA: OpenfUS Analyzer, a versatile open-source framework for the analysis and visualization of functional ultrasound imaging data across animal models

OfUSA provides a versatile open-source framework for analyzing and visualizing functional ultrasound imaging data across species, enabling comprehensive and reproducible analysis.

Continuous monitoring of cerebrovascular autoregulation using functional ultrasound imaging in the piglet brain.

This study evaluates functional ultrasound (fUS) for continuous monitoring of cerebrovascular autoregulation in piglets, showing improved stability and reproducibility compared to standard methods.

Functional ultrasound imaging and neuronal activity: how accurate is the spatiotemporal match?

This study evaluates the spatiotemporal accuracy of functional ultrasound (fUS) by comparing it with neural spike rates in awake mice, finding linear temporal correlation and consistent spatial correlation across visual regions.

A deep learning classification task for brain navigation during functional ultrasound imaging

This paper develops a deep learning framework for brain positioning using functional ultrasound imaging in rats, achieving an average positioning error of 176 micrometers.

Brain-wide continuous functional ultrasound imaging for real-time monitoring of hemodynamics during ischemic stroke

This study uses functional ultrasound imaging to monitor hemodynamic changes in rat brains after ischemic stroke, revealing differences in ischemic lesion progression between two stroke models.

Functional ultrasound imaging of stroke in awake rats

This study uses functional ultrasound imaging to monitor stroke hemodynamics and functional changes in awake rats without anesthesia, revealing early and delayed effects on thalamo-cortical circuits.

Large scale in vivo acquisition, segmentation, and 3D reconstruction of cortical vasculature using open-source functional ultrasound imaging platform

The paper develops an open-source functional ultrasound imaging platform for fast, in vivo 3D reconstruction of cortical vasculature in awake rodents with high spatial resolution.

Neural basis of functional ultrasound signals

This study shows that functional ultrasound signals correlate with neural firing rates in awake mice, revealing a direct relationship between hemodynamic signals and neuronal activity.

Social-vocal brain networks in a non-human primate

The paper identifies a social-vocal brain network in marmoset monkeys that distinguishes social contexts and modulates vocalizations.

Brain-wide mapping of neural activity mediating collicular-dependent behaviors

The paper maps brain-wide neural activity downstream of four collicular cell-types in mice, revealing distinct behavioral outcomes and novel brain regions involved in defensive behaviors.

A platform for brain-wide functional ultrasound imaging and analysis of circuit dynamics in behaving mice

This paper introduces vfUSI, a platform for brain-wide functional ultrasound imaging in mice, enabling high-resolution analysis of circuit dynamics and neural activity.