Detecting Early Signs of Sleep: What to Look For?

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SUMMARY

The discussion focuses on developing a non-invasive device to detect early signs of sleep, specifically targeting the physiological changes that occur as a person begins to lose consciousness. Key indicators mentioned include rapid eye movement (REM), heart rate variability, and brain wave patterns, though the latter two are noted as unreliable or invasive. Participants are encouraged to explore alternative methods for detection that are both effective and cost-efficient. The conversation emphasizes the need for a practical solution that can be applied universally across individuals.

PREREQUISITES
  • Understanding of physiological changes during sleep onset
  • Knowledge of non-invasive monitoring techniques
  • Familiarity with electrical engineering principles
  • Basic concepts of sleep stages, particularly NREM sleep
NEXT STEPS
  • Research non-invasive sensors for monitoring heart rate variability
  • Explore wearable technology for sleep detection
  • Investigate algorithms for analyzing physiological data related to sleep onset
  • Learn about the characteristics of NREM sleep stages and their detection methods
USEFUL FOR

This discussion is beneficial for electrical engineering students, sleep researchers, and developers of wearable health technology who are interested in creating devices for sleep monitoring and detection.

taylaron
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Hi PF, I need some help. I'm studying to be an electrical engineer and I'm trying to make a cheap, non-invasive device that can detect when a person is starting to fall asleep. The device should be able to work on any person and perform a task before they can fall asleep.

*Can anyone tell me what happens physiologically when a person starts to loose consciousness?

As a bonus, it would be extra helpful if you know a way to easily and cheaply detect it.

What I know:
rapid eye movment- unusable beacuse the person is too far into sleep
slowing heart rate- differs from person to person and is dependent on prior physical activity. unreliable?
brain waves change- too invasive to detect and costly.
Any more?
Thoughts?

Much thanks,
Taylaron.
 
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Does anyone have a thought on detecting the first and second stage of NREM sleep?

Much thanks,
-Tay
 

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