Cross-cut: `sensor-eog`

Axis: sensors

2 corpus entries disclose this tag.

Earliest disclosure: 1953-09-04

Listed in chronological order. Each entry’s prior_art_notes and disclosure_citation constitute the citeable prior art material.

Aserinsky & Kleitman (1953) — discovery of REM sleep via electrooculography (1953-09-04)

id: aserinsky-kleitman-1953-rem-sleep
corpus: academic
form factor: other
creator: Eugene Aserinsky / Nathaniel Kleitman (University of Chicago)
disclosure: Aserinsky E, Kleitman N. ‘Regularly occurring periods of eye motility, and concomitant phenomena, during sleep.’ Science 1953;118(3062):273-274.
ip status: public-domain
sensors: sensor-eog, sensor-eeg
algorithms: algo-sleep-staging
prior art notes: Establishes that sleep is not homogeneous — that there are recurring periods of rapid eye movement detectable by electrooculography (with concomitant EEG changes) — i.e. the existence of distinguishable sleep states detectable from ocular/cortical electrophysiology. Foundational prior art for any sleep-staging wearable: the premise that sleep states are detectable from EOG/EEG signals is public since 1953. Anchor for the sleep-staging cross-cut.

id: rechtschaffen-kales-1968-sleep-scoring-manual
corpus: standards
form factor: other
creator: Allan Rechtschaffen / Anthony Kales (eds), for the UCLA Brain Information Service
disclosure: Rechtschaffen A, Kales A (eds). ‘A Manual of Standardized Terminology, Techniques and Scoring System for Sleep Stages of Human Subjects.’ Public Health Service / U.S. Government Printing Office / UCLA Brain Information Service, NIH Publication No. 204, 1968.
ip status: standards
sensors: sensor-eeg, sensor-eog, sensor-emg
algorithms: algo-sleep-staging
prior art notes: Standardizes the definition of sleep stages and the rules for scoring them from EEG + EOG + EMG (polysomnography). Any wearable claim reciting ‘classifying sleep into stages from electrophysiological/physiological signals’ rests on the staging framework standardized here. Combined with [[muse-headband-2014]]-type form-factor disclosures, makes wearable automated sleep-staging an obvious combination under [[obviousness-template]].