Sophie Kajfez

This study shows that co-occurring ripple oscillations enhance neuronal interactions between cortical locations in humans by facilitating prediction and co-firing of neurons.

The paper investigates how thalamic spindles and upstates coordinate cortico-cortical and hippocampo-cortical co-ripples in humans during NREM sleep, finding that thalamic ripples do not directly synchronize co-ripples but spindles and upstates do.

This study shows cortical ripples occur during human NREM sleep and waking with similar characteristics to hippocampal ripples, associated with upstates, spindles, and unit co-firing, suggesting a role in memory consolidation.

This paper shows that high-frequency ripples synchronize cortical activity across distant brain regions during sleep, waking, and memory recall, supporting the binding-by-synchrony theory.