Helfrich Lab
Helfrich Lab
People
Projects
Publications
News
Join Us
2
Subspace partitioning in human prefrontal cortex resolves cognitive interference
The neural basis of flexible cognitive control in humans remains one of the most fascinating mysteries in neuroscience. Evidence from …
Jan Weber
,
Gabriela Iwama
,
A. Solbakk
,
A. Blenkmann
,
P. Larsson
,
J. Ivanovic
,
R. Knight
,
T. Endestad
,
Randolph Helfrich
PDF
DOI
An evolutionary conserved division-of-labor between hippocampal and neocortical sharp-wave ripples organizes information transfer during sleep
Systems-level memory consolidation during sleep depends on the temporally precise interplay between cardinal sleep oscillations. …
Frank van Schalkwijk
,
Jan Weber
,
Michael Hahn
,
Janna Lendner
,
M. Inostroza
,
J. Lin
,
Randolph Helfrich
PDF
DOI
Slow oscillation–spindle coupling strength predicts real-life gross-motor learning in adolescents and adults
Previously, we demonstrated that precise temporal coordination between slow oscillations (SOs) and sleep spindles indexes declarative …
Michael Hahn
,
K. Bothe
,
D. Heib
,
M. Schabus
,
Randolph Helfrich
,
K. Hoedlmoser
PDF
DOI
Aperiodic sleep networks promote memory consolidation
Hierarchical synchronization of sleep oscillations establishes communication pathways to support memory reactivation, transfer, and …
Randolph Helfrich
,
Janna Lendner
,
R. Knight
PDF
DOI
Top–Down Attentional Modulation in Human Frontal Cortex: Differential Engagement during External and Internal Attention
Decades of electrophysiological research on top–down control converge on the role of the lateral frontal cortex in facilitating …
J. Kam,
,
Randolph Helfrich
,
A. Sobbak
,
T. Endestad
,
P. Larsson
,
J. Lin
,
R. Knight
PDF
DOI
An electrophysiological marker of arousal level in humans
Deep non-rapid eye movement sleep (NREM) and general anesthesia with propofol are prominent states of reduced arousal linked to the …
Janna Lendner
,
Randolph Helfrich
,
B. Mander
,
L. Romundstad
,
J. Lin
,
M. Walker
,
P. Larsson
,
R. Knight
PDF
DOI
Slow oscillation-spindle coupling predicts enhanced memory formation from childhood to adolescence
Precise temporal coordination of slow oscillations (SO) and sleep spindles is a fundamental mechanism of sleep-dependent memory …
Michael Hahn
,
D. Heib
,
M. Schabus
,
K. Hoedlmoser
,
Randolph Helfrich
PDF
DOI
Bidirectional prefrontal-hippocampal dynamics organize information transfer during sleep in humans
How are memories transferred from short-term to long-term storage? Systems-level memory consolidation is thought to be dependent on the …
Randolph Helfrich
,
Janna Lendner
,
B. Mander
,
H. Guillen
,
M. Paff
,
L. Mnatsakanyan
,
S. Vadera
,
M. Walker
,
J. Lin
,
R. Knight
PDF
DOI
Neural entrainment and network resonance in support of top-down guided attention
Which neural mechanisms provide the functional basis of top-down guided cognitive control? Here, we review recent evidence that suggest …
Randolph Helfrich
,
A. Breska
,
R. Knight
PDF
DOI
Sleep as a Potential Biomarker of Tau and Beta-Amyloid Burden in the Human Brain
Recent proposals suggest that sleep may be a factor associated with accumulation of two core pathological features of Alzheimer’s …
J. Winer
,
B. Mander
,
Randolph Helfrich
,
A. Maass
,
T. Harrison
,
S. Baker
,
R. Knight
,
W. Jagust
,
M. Walker
PDF
DOI
»
Cite
×