Medical The Science of Sleep: Understanding What Happens When We Drift Off

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Sleep involves a complex interplay between consciousness and perception, where the brain processes sensory information without conscious awareness. While asleep, individuals can perceive sensory stimuli, but the brain often filters this input, allowing for deeper sleep unless the stimuli are significant enough to provoke waking. The perception of time during sleep is largely unconscious, with many reporting an awareness of time passing upon waking. Unlike sleep, organisms without a nervous system, such as bacteria and plants, do not possess consciousness or perception, merely reacting to environmental stimuli. Overall, sleep is a state of rest where the brain remains active in processing information, distinguishing it from states of unconsciousness like death.
  • #31
But I always thought that moths do perceive light, but don't think about it?
Like there's some sort of feeling, but they don't think about it?
For example when you hear a conversation but don't process what they're talking about, you hear everything (so you perceive it) but don't think/process it.
 
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  • #32
candydude357 said:
But I always thought that moths do perceive light, but don't think about it?
Like there's some sort of feeling, but they don't think about it?
For example when you hear a conversation but don't process what they're talking about, you hear everything (so you perceive it) but don't think/process it.

Again, that depends on your definition of 'perceive'. They have photosensors, yes. Is that perception?

This is a semantic discussion, since we're just discussing our ideas of words, not the actual facts of what's going on.


Going back to feeling and pain for a moment:

... a scalpel... cuts into the head and exposes the insect’s brain.

“There’s no anesthesia. Isn’t it unbearably painful?”

“Not at all ... Insects have no pain receptors, nor do they have the cognitive traits needed to experience pain the way we do. The experience of pain is created in the brain. Insects don’t have a system that can convey information about pain,”...
http://Earth'sky.org/biodiversity/inside-a-moths-brain
 
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  • #33
Wait, insects don't have pain receptors? I never knew that...
 
  • #34
Shalis said:
I can not complete my sleep and often take sleeping pills for the sound sleep.
Is it a healthy way for he sound sleep?, Please give me some healthy suggestions

Take it up with your doctor.
 
  • #35
Seconded.

Needing to take sleeping pills regularly is a sure alert to get to your doctor.
 

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