REM sleep augmentation with extra-ocular light
AssigneeCornell Research Foundation, Inc.
InventorsScott S. Campbell, Patricia J. Murphy
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Abstract
The invention provides for exposing an extraocular (i.e., non-ocular) region of a human to light during sleep which enhances REM sleep. Also provided are devices to carry out the methods. Key timing parameters ensure effective REM enhancement without adversely impacting a subject's circadian clock. The invention provides for improving cognitive function and performance in healthy individuals, and in individuals suffering from a disease or disorder in which mental status is compromised. One embodiment of the invention (100) includes a fiber optics pad (160) attached to a power source, and lamp housing (120) by a fiber optics cable (140).
Claims22
A method for enhancing REM sleep in a subject, which method comprises exposing a non-ocular region of a subject to non-solar photic stimulation for an interval during a sleep period such that REM sleep is enhanced, wherein the REM sleep is enhanced with minimum impact on the circadian clock.
A method for extending a REM cycle of a person, comprising the steps of:
- a) sensing the start of the REM cycle;
- b) sensing the end of the REM cycle;
- c) determining the time interval of the REM cycle;
- and
- d) augmenting the time interval of the REM cycle by selectively providing non-ocular photic stimulation for a predetermined interval.
An article for extending a REM cycle of a person, comprising:
- a) a sensor which provides phasic activity signals;
- b) a timing circuit connected to the sensor and outputting an elapsed-interval signal indicative of the magnitude of the REM cycle;
- c) a comparator which compares the elapsed-interval signal to a predetermined-interval signal and outputs a shortfall signal;
- d) a controller responsive to the shortfall signal to generate a control signal;
- e) a photic stimulator positionable in contact with the person's skin and being actuated in response to the control signal.
Dependencies are inferred from the claim text.