Catharina Zich

The effects of varying intensities of unilateral handgrip fatigue on bilateral movement

This study examines how unilateral handgrip fatigue at different intensities affects bimanual movement quality, finding no measurable impact on movement quality despite changes in neural dynamics.

Closed-loop beta stimulation enhances beta activity and motor behaviour

This study uses closed-loop tACS to enhance beta ERS during motor tasks, improving motor adaptation retention.

Dual-site beta transcranial alternating current stimulation during a bimanual coordination task modulates functional connectivity between motor areas

This study uses dual-site beta tACS over primary motor cortices during bimanual coordination to modulate functional connectivity, finding altered connectivity but no behavioral changes.

Differential beta and gamma activity modulation during unimanual and bimanual motor learning

This study examines how beta and gamma neural activity differs between unimanual and bimanual motor tasks and how these patterns change with learning.

Concurrent spinal and brain imaging with optically pumped magnetometers

This paper introduces a system for concurrent non-invasive imaging of brain and spinal cord electrophysiology using wearable optically pumped magnetometers.

The GLM-Spectrum: A multilevel framework for spectrum analysis with covariate and confound modelling

The paper introduces the GLM-Spectrum framework for analyzing power spectra with confound and covariate modeling, showing its ability to quantify condition differences and age effects in EEG data.

Spatiotemporal organization of human sensorimotor beta burst activity

This study identifies spatiotemporal wave-like patterns of beta bursts in human sensorimotor cortex using magnetoencephalography, showing distinct propagation directions with different anatomical and physiological features.

Ramped V1 transcranial ultrasonic stimulation modulates but does not evoke visual evoked potentials

This study uses ramped transcranial ultrasonic stimulation to investigate its effects on visual evoked potentials, finding no direct evoked potentials but modulation of VEPs when combined with a checkerboard stimulus.

Repeated unilateral handgrip contractions alter functional connectivity and improve contralateral limb response times: A neuroimaging study

This study shows that repeated unilateral handgrip contractions at 50% MVC improve contralateral hand response times and alter functional connectivity and neurochemical levels in sensorimotor areas.

Human motor cortical gamma activity relates to GABAergic signalling and to behaviour

This study identifies two distinct gamma sub-bands in human motor cortex linked to GABAergic signaling and motor learning through combined MEG and TMS methods.

The impact of brain lesions on tDCS-induced electric field magnitude

This paper investigates how brain lesions affect tDCS-induced electric field magnitude and shows that lesion characteristics can alter e-mag by over 30%.

Motor Imagery EEG Neurofeedback Skill Acquisition in the Context of Declarative Interference and Sleep

This study investigates whether sleep and declarative interference affect motor imagery neurofeedback skill acquisition, finding no significant effects on ERD.

Determinants of Real-Time fMRI Neurofeedback Performance and Improvement: a Machine Learning Mega-Analysis

This study uses machine learning to analyze 608 participants and identifies two factors improving neurofeedback performance: pre-training no-feedback runs and training patients over healthy participants.

Can we predict real-time fMRI neurofeedback learning success from pre-training brain activity?

This study investigates whether pre-training brain activity can predict success in real-time fMRI neurofeedback learning across 24 studies and 401 participants, finding a weak correlation but no consistent predictors.

Modulatory effects of dynamic fMRI-based neurofeedback on emotion regulation networks in adolescent females

This study shows that fMRI-based neurofeedback modulates emotion regulation networks in adolescent females, with effects influenced by neurotransmitter concentrations.

Motor learning shapes temporal activity in human sensorimotor cortex

The paper uses magnetoencephalography and Hidden Markov Modelling to detect changes in {beta}-activity during motor learning, showing its relevance across different motor tasks.