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US 11,684,309 B2Granted
System and method to enhance dream recall
AssigneeKoninklijke Philips N.V.
InventorsAkhil Chaturvedi, Gary Nelson Garcia Molina
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AssigneeKoninklijke Philips N.V.
InventorsAkhil Chaturvedi, Gary Nelson Garcia Molina
Estimating the term…
The present disclosure pertains to delivering sensory stimulation to a subject during a sleep session in order to enhance dream recall. The system may detect REM sleep in the subject during a sleep session based on brain activity of the subject. The system may then deliver sensory stimulation to the subject during the sleep session. The system may deliver sensory stimulation at a frequency in a theta range of an EEG signal in order to increase theta power in the brain activity of the subject. In some embodiments, the system may modulate the intensity of the sensory stimulation according to changes in the EEG theta power associated with the subject during the sleep session. In some embodiments, an increase in EEG theta power associated with the subject may promote dream recall.
A system for enhancing dream recall in a subject, the system comprising:
A system for enhancing dream recall in a subject, the system comprising:
A system for enhancing dream recall in a subject, the system comprising:
A method for enhancing dream recall in a subject with a system, the system comprising one or more sensors, one or more sensory stimulators, and one or more processors, the method comprising:
A method for enhancing dream recall in a subject with a system, the system comprising one or more sensors, one or more sensory stimulators, and one or more processors, the method comprising:
A method for enhancing dream recall in a subject with a system, the system comprising one or more sensors, one or more sensory stimulators, and one or more processors, the method comprising:
Dependencies are inferred from the claim text.
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Other medical applications: sleep evaluation
Devices for delivering substances into the body: other devices or methods to
Electroencephalography [EEG]: using evoked responses
Sleep evaluation: detecting sleep stages or cycles
About 14 years 10 months of term left · ends 31 Aug 2041 (estimated)
The present disclosure pertains to a system and method for enhancing dream recall in a subject during a sleep session.
Systems for monitoring sleep and delivering sensory stimulation to subjects during sleep are known. Electroencephalogram (EEG) sensor-based sleep monitoring and sensory stimulation systems are known.
It would be advantageous to enhance dream recall following a sleep session. Delivery of repetitive sensory stimulation, at a particular frequency, to a subject during a sleep session may enhance dream recall following the sleep session. Accordingly, one or more aspects of the present disclosure relate to a system configured to deliver sensory stimulation to a subject during a sleep session in order to promote dream recall. The system comprises one or more sensors, one or more sensory stimulators, one or more processors, and/or other components. The one or more sensors are configured to generate output signals conveying information related to brain activity of the subject during the sleep session. The one or more sensory stimulators are configured to provide the sensory stimulation to the subject during the sleep session. The one or more processors are coupled to the one or more sensors and the one or more sensory stimulators. The one or more processors are configured by machine-readable instructions. The one or more processors are configured to control the one or more sensory stimulators based on the brain activity of the subject.
FIG. 1 is a schematic illustration of a system configured to enhance dream recall in a subject, in accordance with one or more embodiments.
FIG. 2 illustrates several of the operations performed by the system, in accordance with one or more embodiments.
FIG. 3 illustrates example architecture of a deep neural network that is part of the system, in accordance with one or more embodiments.
As used herein, the singular form of “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise. As used herein, the term “or” means “and/or” unless the context clearly dictates otherwise. As used herein, the statement that two or more parts or components are “coupled” shall mean that the parts are joined or operate together either directly or indirectly, i.e., through one or more intermediate parts or components, so long as a link occurs. As used herein, “directly coupled” means that two elements are directly in contact with each other. As used herein, “fixedly coupled” or “fixed” means that two components are coupled to move as one while maintaining a constant orientation relative to each other.
Directional phrases used herein, such as, for example and without limitation, top, bottom, left, right, upper, lower, front, back, and derivatives thereof, relate to the orientation of the elements shown in the drawings and are not limiting upon the claims unless expressly recited therein.
FIG. 1 is a schematic illustration of a system 10 configured to enhance dream recall in a subject 12. System 10 is configured to facilitate delivery of sensory stimulation to subject 12 to enhance dream recall, adjust stimulation parameters based on the response of the subject to the sensory stimulation, and/or for other purposes. System 10 is configured such that sensory stimulation including auditory, haptic, visual, and/or other stimulation is delivered before and/or during sleep. In some embodiments, the initial intensity of the sensory stimulation (e.g., when entering a period of REM sleep) may be below a perceivable threshold. In some embodiments, the stimulation is modulated according to the brain activity of subject 12. In some embodiments, the brain activity is used to calculate an EEG theta power (e.g., running average of the square of the signal that results from filtering an EEG signal in the theta band) of the subject. In some embodiments, if the EEG theta power decreases during a time period, the one or more processors may control the sensory stimulators to increase the intensity of the sensory stimulation delivered to the subject. In some embodiments, the intensity of the sensory stimulation may be increased by a factor that is proportional to the EEG theta power decrease during the time period. In some embodiments, if the EEG theta power increases, the intensity of the sensory stimulation may remain the same. During the delivery of sensory stimulation, the brain activity of the subject may be monitored for micro-arousals such that the sensory stimulation does not wake the subject.