Publications

Jan Weber, Gabriela Iwama, A. Solbakk, A. Blenkmann, P. Larsson, J. Ivanovic, R. Knight, T. Endestad, Randolph Helfrich (2022). Subspace partitioning in human prefrontal cortex resolves cognitive interference. bioRxiv.

Isabel Raposo, S. Szczepanski, K. Haaland, T. Endestad, A. Solbakk, R. Knight, Randolph Helfrich (2022). Periodic neglect after frontoparietal lesions provides causal evidence for rhythmic attention sampling. bioRxiv.

Frank van Schalkwijk, Jan Weber, Michael Hahn, Janna Lendner, M. Inostroza, J. Lin, Randolph Helfrich (2022). An evolutionary conserved division-of-labor between hippocampal and neocortical sharp-wave ripples organizes information transfer during sleep. bioRxiv.

Randolph Helfrich, R. Knight, M. D'Esposito (2022). Methods to Study Human Memory. Oxford Handbook of Human Memory.

Randolph Helfrich, R. Knight (2022). Neural recordings and time series analyses. The SAGE Handbook of Cognitive and Systems Neuroscience.

Randolph Helfrich, R. Knight (2022). Making memories last: How sleep promotes neuroplasticity. Changing Brains: Essays on Neuroplasticity in Honor of Helen J. Neville.

Randolph Helfrich (2022). Human Intracranial Cognitive Neurophysiology. Electrophysiological Recording Techniques, Neuromethods.

Janna Lendner, Randolph Helfrich (2022). How can I run sleep and anesthesia studies with intracranial EEG?. Intracranial EEG for Cognitive Neuroscience.

Michael Hahn, K. Bothe, D. Heib, M. Schabus, Randolph Helfrich, K. Hoedlmoser (2022). Slow oscillation–spindle coupling strength predicts real-life gross-motor learning in adolescents and adults. eLife.

Jan Weber, A. Solbakk, A. Blenkmann, A. Funderud, S. Leske, P. Larsson, J, Ivanovic, R. Knight, T. Endestad, Randolph Helfrich (2021). Population coding and oscillatory subspace synchronization integrate context into actions. bioRxiv.

Randolph Helfrich, Janna Lendner, R. Knight (2021). Aperiodic sleep networks promote memory consolidation. Trends in Cognitive Sciences.

J. Kam,, Randolph Helfrich, A. Sobbak, T. Endestad, P. Larsson, J. Lin, R. Knight (2021). Top–Down Attentional Modulation in Human Frontal Cortex: Differential Engagement during External and Internal Attention. Cerebral Cortex.

Janna Lendner, Randolph Helfrich, B. Mander, L. Romundstad, J. Lin, M. Walker, P. Larsson, R. Knight (2020). An electrophysiological marker of arousal level in humans. eLife.

Michael Hahn, D. Heib, M. Schabus, K. Hoedlmoser, Randolph Helfrich (2020). Slow oscillation-spindle coupling predicts enhanced memory formation from childhood to adolescence. eLife.

Randolph Helfrich, R. Knight (2019). Cognitive neurophysiology: Event-related potentials. Handbook of Clinical Neurology.

Randolph Helfrich, R. Knight (2019). Cognitive neurophysiology of the prefrontal cortex. Handbook of Clinical Neurology.

J. Winer, B. Mander, Randolph Helfrich, A. Maass, T. Harrison, S. Baker, R. Knight, W. Jagust, M. Walker (2019). Sleep as a Potential Biomarker of Tau and Beta-Amyloid Burden in the Human Brain. The Journal of Neuroscience.

Randolph Helfrich, A. Breska, R. Knight (2019). Neural entrainment and network resonance in support of top-down guided attention. Current Opinion in Psychology.

Randolph Helfrich, Janna Lendner, B. Mander, H. Guillen, M. Paff, L. Mnatsakanyan, S. Vadera, M. Walker, J. Lin, R. Knight (2019). Bidirectional prefrontal-hippocampal dynamics organize information transfer during sleep in humans. Nature Communications.

Randolph Helfrich, I. Fiebelkorn, S. Szczepanski, J. Lin, J. Parvizi, R. Knight, S. Kastner (2018). Neural Mechanisms of Sustained Attention Are Rhythmic. Neuron.

Randolph Helfrich, B. Mander, W. Jagust, R. Knight, M. Walker (2018). Old Brains Come Uncoupled in Sleep: Slow Wave- Spindle Synchrony, Brain Atrophy, and Forgetting. Neuron.

Randolph Helfrich (2017). The rhythmic nature of visual perception. Journal of Neurophysiology.

Randolph Helfrich (2017). Prefrontal cortex modulates posterior alpha oscillations during top-down guided visual perception. PNAS.

S. Katarina Slama, Randolph Helfrich (2017). How Does Expectation Shape Object-Based Attentional Selection?. The Journal of Neuroscience.