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

  • Context: Medical 
  • Thread starter Thread starter atjta
  • Start date Start date
  • Tags Tags
    Sleep
Click For Summary

Discussion Overview

The discussion revolves around the nature of sleep, sensory perception during sleep, and comparisons between human sleep and the responses of organisms without complex nervous systems. Participants explore questions about consciousness, time perception, and the experiences of waking from sleep.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants question what sensations or perceptions occur during sleep, suggesting that while the brain may not consciously process sensory information, it still functions at some level.
  • There are anecdotal accounts of individuals perceiving sounds or sensations while asleep, with varying interpretations of whether these perceptions are real or dream-like.
  • Participants discuss the idea of unconscious perception of time, with some claiming they can sense time passing while asleep, while others express uncertainty about this experience.
  • Questions arise about whether organisms without brains, such as bacteria and plants, can perceive their environment, with differing views on the definitions of perception and reaction.
  • Some participants share personal experiences related to sleepwalking and the memories associated with it, indicating a complex relationship between consciousness and sleep states.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the nature of perception during sleep or the comparison between human sleep and the responses of simpler organisms. Multiple competing views remain regarding the definitions of perception and the experiences associated with sleep.

Contextual Notes

There are limitations in the discussion regarding the definitions of perception and consciousness, as well as the assumptions made about the experiences of different organisms. The relationship between sensory perception and conscious awareness during sleep is also not fully resolved.

  • #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.
 
Biology news on Phys.org
  • #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
 
Last edited:
  • #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.
 

Similar threads

  • · Replies 42 ·
2
Replies
42
Views
6K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
1
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
36
Views
8K
  • · Replies 15 ·
Replies
15
Views
7K
  • · Replies 1 ·
Replies
1
Views
3K