Irina V. Zhdanova

Dual-Resonance Shapes REM Sleep: A Mechanistic Link Between Homeostasis, Circadian Phase, and Sleep Deficit.

The paper identifies REM episode duration as a dual readout of circadian phase and sleep deficit, revealing the interaction of homeostatic and circadian resonance processes.

Homeostatic Forces Shaping the Daily Pattern of Sleep Propensity.

The paper models daily sleep propensity using a wave model of homeostatic regulation, showing how wake-state instability and interaction strength between sleep and wake states produce a bimodal pattern.

Invariant relationship unites REM and NonREM sleep.

The paper identifies an invariant relationship between NREM sleep duration and REM sleep intensity across normal sleep cycles.

An invariant relationship between NonREM and REM sleep and the wave model of their dynamics.

The paper introduces a wave model that quantitatively captures the dynamics of NonREM and REM sleep and predicts an invariant relationship between their duration and intensity.