Marcus Siems

This paper shows that dual-site amplitude-modulated tACS can causally modulate interhemispheric amplitude coupling in the human brain, with effects dependent on stimulation parameters.

The paper shows that human brains rhythmically sample decision alternatives at 11 Hz, with attention shifts occurring at troughs and focus deepening at peaks.

This study shows that high-amplitude oscillatory events coordinate large-scale cortical networks during decision-making and attention, revealing a new mechanism for dynamic brain function.

The paper develops a multistage analysis approach to identify altered phase- and amplitude-coupling in Multiple Sclerosis using MEG data, achieving 84% classification accuracy between patients and controls.

The paper systematically compares cortical phase- and amplitude-coupling patterns in the human brain, finding they differ across frequencies and regions and reflect distinct neuronal mechanisms.