Andreas Karl Engel

This paper derives mathematical relations between brain connectivity measures from Gaussian data and tests their validity using simulations and empirical EEG data.

The paper investigates how Parkinson’s disease affects the sensitivity of subthalamic nucleus neurons to beta-frequency cortical input, showing increased phase-locking in PD patients and frequency-specific responses in rats.

The paper shows that delta phase resets support temporal prediction in a non-rhythmic visual task without power increases or stimulus-driven activity.

The paper shows that cFos expression in the dentate gyrus changes daily and does not stabilize with spatial memory, yet neurons from early training days still influence later performance.

This study investigates how the phase of transcranial alternating current stimulation (tACS) affects visually evoked steady state responses (SSRs) in humans, finding that phase shifts modulate SSR amplitudes and that optimal timing depends on neural conduction times.

This study examines how parkin deficiency affects cortico-basal ganglia circuit dynamics in mice, revealing altered interneuronal activity and oscillatory patterns linked to Parkinson's disease.

This study simulates individually targeted transcranial electric stimulation (tES) using finite-element methods and head models to assess how anatomical differences affect electric field properties and efficacy.

The paper introduces a network perturbation method to study dynamic pathway switching in the human brain using phase offsets and coupling delays, finding 60.1% of node pairs can switch communication pathways.

This study investigates whether multisensory communication relies on gamma oscillation synchronization, finding that congruent stimulus matching is associated with weaker gamma coherence and that tACS can modulate this process.

The paper develops a computational model of sequence learning using neural oscillators and compares it to human behavioral results, showing good agreement in error rates across sequence complexities.

This study examines beta burst dynamics in the cortico-basal ganglia network of PD patients and rats, showing phase relationships and rhythmic activity patterns that correlate with motor impairment.

This study shows that alpha-band oscillations in sighted humans encode external spatial information for tactile stimuli, unlike congenitally blind humans who rely on skin-based coding.

This study shows older adults perform worse in crossmodal integration tasks but improve when stimuli are congruent, suggesting congruency effects could aid cognitive training.

This study shows that transcranial alternating current stimulation (tACS) can modulate long-range cortical connectivity, with effects dependent on the phase relationship between hemispheres.

The paper shows that context-specific reconfiguration of intrinsic coupling modes in the brain facilitates multisensory integration through changes in local field potential responses.

This study identifies functional brain networks using EEG source connectivity in multisensory processing and shows phase delays predict task performance.

This study investigates how attention modulates cross-modal matching by analyzing alpha and gamma oscillations in EEG data during a multisensory task.

The paper shows that working memory training with voices increases beta-band connectivity in the visual cortex of congenitally blind individuals during auditory tasks.

This study investigates phase-amplitude coupling (PAC) in the subthalamic nucleus of Parkinson’s disease patients and finds that spiking activity synchronizes with high-frequency oscillations during PAC, correlating with beta burst duration.

This study shows that multi-frequency tACS has lasting effects on neural synchrony and audiovisual responses in anesthetized ferrets.

This study shows that phase-dependent electrical stimulation can suppress beta oscillations in Parkinson's patients, offering a potential therapeutic strategy.

The paper introduces a mesoscale electrode array for epicortical recordings that selectively captures synchronized spiking activity, improving signal quality and reducing noise compared to intracortical recordings.

The paper develops a computational MEG approach to map cortical transients driven by surprise about sensory event timing, showing beta-band suppression in frontal regions.

This study shows that catecholamines change the intrinsic variability of cortical activity and perception, increasing the net E/I ratio in visual and parietal cortex, while acetylcholine does not.

This study shows that ferrets integrate auditory and visual stimuli in a statistically optimal way, reducing detection thresholds and speeding up reaction times.