Randolph F. Helfrich

The paper shows that visual attention samples space in a hexagonal pattern guided by theta rhythms, similar to spatial navigation mechanisms.

The paper investigates how inhibitory circuits modulate the relationship between aperiodic activity and spiking in mouse visual cortex across different states and contexts.

This study identifies high-frequency activity bursts as markers of fast, long-range brain communication during spatial attention tasks, showing their role in behavioral accuracy and network synchronization.

This study investigates how predictive processing influences sensory and action representations in EEG during a motion-discrimination task, finding domain- and stage-dependent effects.

This study finds that slow oscillation-spindle coupling during sleep predicts better sequence-based language learning and is linked to memory consolidation and theta activity.

The paper identifies a coding mechanism in human prefrontal cortex that resolves interference between past and present task variables by partitioning neural activity into distinct low-dimensional states.

This study shows that frontoparietal lesions cause periodic neglect, aligning behavioral deficits with neural oscillations, supporting rhythmic attention sampling.

The paper reveals that hippocampal and neocortical sharp-wave ripples have distinct functional roles during sleep, with hippocampal ripples promoting information transfer and neocortical ripples reducing interference.

This study shows REM sleep recalibrates excitation/inhibition balance, predicting memory consolidation success in humans.

The paper shows that stronger coupling between slow oscillations and spindles during sleep predicts better motor learning in adolescents and adults.

This study shows how oscillatory synchrony and continuous population dynamics in prefrontal cortex integrate context into action plans during goal-directed behavior.

The paper identifies the 1/f spectral slope as an electrophysiological marker that distinguishes wakefulness from sleep and anesthesia by reflecting changes in excitation-inhibition balance.