Weronika Potok

Transcutaneous auricular vagus nerve stimulation during movement modulates motor neural circuitry without widespread cortical or autonomic activation

This study investigates how transcutaneous auricular vagus nerve stimulation (taVNS) interacts with movement in healthy adults, finding context-specific effects on motor systems without widespread autonomic activation.

Pupil self-regulation modulates markers of cortical excitability and cortical arousal

This study shows that pupil-based biofeedback modulates cortical excitability, EEG spectral slope, and P300 response, suggesting a link to phasic LC activity and central arousal.

Contrast detection is enhanced by non-stochastic, high-frequency transcranial alternating current stimulation with triangle and sine waveform.

This study shows that non-stochastic, high-frequency transcranial alternating current stimulation (hf-tACS) with triangle and sine waveforms reduces visual contrast detection thresholds, similar to stochastic tRNS.

Transcranial random noise stimulation of the primary visual cortex but not retina modulates visual contrast sensitivity.

This study tests if transcranial random noise stimulation (tRNS) applied to the primary visual cortex or retina improves visual contrast detection, finding that V1 stimulation enhances performance while retinal stimulation does not.

Transcranial Random Noise Stimulation acutely lowers the response threshold of human motor circuits

This study shows that transcranial random noise stimulation (tRNS) acutely lowers the resting motor threshold in human primary motor cortex, indicating increased neural responsiveness.