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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
Neural Mechanisms of Sustained Attention Are Rhythmic
Classic models of attention suggest that sustained neural firing constitutes a neural correlate of sustained attention. However, recent …
Randolph Helfrich
,
I. Fiebelkorn
,
S. Szczepanski
,
J. Lin
,
J. Parvizi
,
R. Knight
,
S. Kastner
PDF
DOI
Old Brains Come Uncoupled in Sleep: Slow Wave- Spindle Synchrony, Brain Atrophy, and Forgetting
The coupled interaction between slow-wave oscillations and sleep spindles during non-rapid-eye-movement (NREM) sleep has been proposed …
Randolph Helfrich
,
B. Mander
,
W. Jagust
,
R. Knight
,
M. Walker
PDF
DOI
The rhythmic nature of visual perception
Our continuous perception of the world could be the result of discrete sampling, where individual snapshots are seamlessly fused into a …
Randolph Helfrich
PDF
DOI
Prefrontal cortex modulates posterior alpha oscillations during top-down guided visual perception
Conscious visual perception is proposed to arise from the selective synchronization of functionally specialized but widely distributed …
Randolph Helfrich
PDF
DOI
How Does Expectation Shape Object-Based Attentional Selection?
S. Katarina Slama
,
Randolph Helfrich
PDF
DOI
Different coupling modes mediate cortical cross-frequency interactions
Cross-frequency coupling (CFC) has been suggested to constitute a highly flexible mechanism for cortical information gating and …
Randolph Helfrich
,
C. Herrman
,
A. Engel
,
T. Schneider
PDF
DOI
Entrainment of Brain Oscillations by Transcranial Alternating Current Stimulation
Novel methods for neuronal entrainment provide the unique opportunity to modulate perceptually relevant brain oscillations in a …
Randolph Helfrich
,
H. Knepper
,
G. Nolte
,
M. Sengelmann
,
P. König
,
T. Schneider
,
A. Engel
PDF
DOI
Spectral Fingerprints of Large-Scale Cortical Dynamics During Ambiguous Motion Perception
Ambiguous stimuli have been widely used to study the neuronal correlates of consciousness. Recently, it has been suggested that …
Randolph Helfrich
,
H. Knepper
,
G. Nolte
,
M. Sengelmann
,
P. König
,
T. Schneider
,
A. Engel
PDF
DOI
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