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1. (WO2018001936) SYSTEM AND METHOD FOR ADJUSTING THE VOLUME OF AUDITORY STIMULATION DURING SLEEP BASED ON SLEEP DEPTH LATENCIES

Pub. No.:    WO/2018/001936    International Application No.:    PCT/EP2017/065654
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Tue Jun 27 01:59:59 CEST 2017
IPC: A61M 21/00
Applicants: KONINKLIJKE PHILIPS N.V.
WISCONSIN ALUMNI RESEARCH FOUNDATION
Inventors: GARCIA MOLINA, Gary, Nelson
BELLESI, Michele
RIEDNER, Brady, Alexander
TONONI, Giulio
Title: SYSTEM AND METHOD FOR ADJUSTING THE VOLUME OF AUDITORY STIMULATION DURING SLEEP BASED ON SLEEP DEPTH LATENCIES
Abstract:
The present disclosure pertains to a system configured to adjust a volume of auditory stimulation delivered to a subject during sleep. The system is configured to determine a deepening time indicative of a rate at which sleep of the subject deepens during the sleep session. The deepening time is determined based on (i) a ratio of power in a high frequency band of an EEG signal to power in a low frequency band, (ii) a density of slow waves, or (iii) a hypnogram, indicative of sleep depth in the subject during the sleep session. The system is configured to determine a rate of volume increase for auditory stimulation during a subsequent sleep session based on the deepening time; and control the one or more sensory stimulators to adjust the volume of auditory stimulation provided to the subject during the subsequent sleep session based on the determined rate of volume increase.