Oscillatory Dynamics of Prefrontal Cognitive Control

by Helfrich, Randolph F., Knight, Robert T.
Published in Trends Cogn Sci (2016)

How Does Expectation Shape Object-Based Attentional Selection?

by Slama, S. J. Katarina, Helfrich, Randolph F.
Published in J Neurosci (2017)

Modulation of Cortical Network Activity by Transcranial Alternating Current Stimulation

by Helfrich, Randolph F., Schneider, Till R.
Published in J Neurosci (2013)

Neural Entrainment and Network Resonance in Support of Top-down guided Attention

by Helfrich, Randolph F., Breska, Assaf, Knight, Robert T.
Published in Curr Opin Psychol (2019)

Prefrontal cortex modulates posterior alpha oscillations during top-down guided visual perception

by Helfrich, Randolph F., Huang, Melody, Wilson, Guy, Knight, Robert T.
Published in Proc Natl Acad Sci U S A (2017)

Slow oscillation-spindle coupling predicts enhanced memory formation from childhood to adolescence

by Hahn, Michael A, Heib, Dominik, Schabus, Manuel, Hoedlmoser, Kerstin, Helfrich, Randolph F
Published in eLife (2020)

Old brains come uncoupled in sleep – Slow wave-spindle synchrony, brain atrophy and forgetting

by Helfrich, Randolph F., Mander, Bryce A., Jagust, William J., Knight, Robert T., Walker, Matthew P.
Published in Neuron (2017)

Spectral fingerprints of large‐scale cortical dynamics during ambiguous motion perception

by Helfrich, Randolph F., Knepper, Hannah, Nolte, Guido, Sengelmann, Malte, König, Peter, Schneider, Till R., Engel, Andreas K.
Published in Hum Brain Mapp (2016)

Neural mechanisms of sustained attention are rhythmic

by Helfrich, Randolph F., Fiebelkorn, Ian C., Szczepanski, Sara M., Lin, Jack J., Parvizi, Josef, Knight, Robert T., Kastner, Sabine
Published in Neuron (2018)

Selective Modulation of Interhemispheric Functional Connectivity by HD-tACS Shapes Perception

by Helfrich, Randolph F., Knepper, Hannah, Nolte, Guido, Strüber, Daniel, Rach, Stefan, Herrmann, Christoph S., Schneider, Till R., Engel, Andreas K.
Published in PLoS Biol (2014)

Top–Down Attentional Modulation in Human Frontal Cortex: Differential Engagement during External and Internal Attention

by Kam, Julia W Y, Helfrich, Randolph F, Solbakk, Anne-Kristin, Endestad, Tor, Larsson, Pål G, Lin, Jack J, Knight, Robert T
Published in Cereb Cortex (2020)

An electrophysiological marker of arousal level in humans

by Lendner, Janna D, Helfrich, Randolph F, Mander, Bryce A, Romundstad, Luis, Lin, Jack J, Walker, Matthew P, Larsson, Pal G, Knight, Robert T
Published in eLife (2020)

Bidirectional prefrontal-hippocampal dynamics organize information transfer during sleep in humans

by Helfrich, Randolph F., Lendner, Janna D., Mander, Bryce A., Guillen, Heriberto, Paff, Michelle, Mnatsakanyan, Lilit, Vadera, Sumeet, Walker, Matthew P., Lin, Jack J., Knight, Robert T.
Published in Nat Commun (2019)

Sleep as a Potential Biomarker of Tau and β-Amyloid Burden in the Human Brain

by Winer, Joseph R., Mander, Bryce A., Helfrich, Randolph F., Maass, Anne, Harrison, Theresa M., Baker, Suzanne L., Knight, Robert T., Jagust, William J., Walker, Matthew P.
Published in J Neurosci (2019)