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> sleep-tracking device that can alter dreams by tracking hypnagogia and then delivering audio cues based on incoming physiological data Neither the press rele
by DoingIsLearning 6y ago
> sleep-tracking device that can alter dreams by tracking hypnagogia and then delivering audio cues based on incoming physiological data
Neither the press release article nor the actual paper abstract seem to mention how is a hypnagogia phase detected? Anyone with access to the full paper can expand on this?
For what is effectively the most important/novel part of this device it seems fairly handwavy on details.
- 0xdeadb00f 6y agoIn the early 2010s I remember reading about a eye mask that detected when you were in REM sleep by the literal rapid movements of your eyeballs while you slept. When REM was sufficiently detected it would flash three red LEDs over your eyes. The idea being that in your dream you would see the three red LEDs faintly, and realise that you were in a dream. I'm not sure if this actually works or how accurate it was however.
- DoingIsLearning 6y agoBut Rapid-Eye-Movement cycles happens at some point in between deeper sleep cycles. In this case they claim to detect hypnagogia which from the article is the early transition from wakefulness to sleep. In this stage you might have muscle relaxation or breathing pattern changes but probably not rapid eye movement.
- 0xdeadb00f 6y agoI see
- DoingIsLearning 6y agoThanks to duopixel! Found the answer in the thesis pdf. Jump to figure 19. They found a good enough relation between finger muscle relaxation (EMG electrodes) and EEG sleep signals. This is really cool because you bypass all the other issues/disconfort with other headband devices. I would be much more willing to have something on my fingers during sleep than strapped to my head. Edit:typo