Bradley Voytek

Aperiodic dynamics track cortical state shifts during sleep K-complexes

Revisiting post-stimulus theta activity: evidence for a broadband rather than narrowband spectral origin.

The aperiodic, 1/f-like component of electrophysiological activity is increasingly recognized as a meaningful feature of neural function rather than background noise. Meanwhile, many EEG studies interpret transient post-stimulus changes in oscillatory power as signatures of attention, salience, or cognitive control. Su...

Phenotypic and movement-dependent periodic and aperiodic activity in Parkinson's STN-LFP recordings.

OBJECTIVE Traditional analyses of subthalamic nucleus local field potentials (STN-LFPs) may obscure relevant dynamics by conflating periodic and aperiodic activity. We investigated whether spectral parameterization reveals phenotype- and movement-dependent neural signatures in Parkinson's disease (PD). METHODS Intrao...

Simulated field potentials capture multiple simultaneous processes underlying human temporal attention

Essential cognitive processes like attention, memory, and decision-making require the brain to perform many operations simultaneously. Disentangling the neural mechanisms underlying these processes is challenging because they often unfold concurrently with similar dynamics. In auditory temporal expectation, these mecha...

ScaleSurfer: multi-scale anatomical segmentation and parcellation of the human brain

ScaleSurfer positions multi-scale representation learning as a practical route toward faster, anatomically faithful structural MRI processing, whose speed paves the way for nearly real-time anatomical quality control during scanning.