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Why Do We Sleep
#21 28 August 2010 - 04:46 PM
Hey people.. i have written a blog post regarding this sleeping and the how the brain acts accordingly.. to read this post pls login to http://globaltutor.b...-everybody.html
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Let me hear ur comments in my blog too..
Hope u enjoyed..
- Posts: 12 | Joined: 28-August 10
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#22 3 September 2010 - 10:20 PM
Here's an article describing research suggesting a link between our cortex and that of a species of marine worms, which further extends our brain's evolution back some 600 million years:
http://news.discover...uman-brain.html
The article goes on to describe how these pre-brain structures in early animals "probably consisted of a group of densely packed cells that received and processed very basic information about food and the environment. The structure may have enabled our ancestors crawling over the sea floor to identify food sources, move towards them, and then later to integrate previous experiences into learning." The goal of this research, the author quotes, "'is to reconstruct and understand the evolution of brains in animals, to trace their neuronal composition and their function from the very beginning of animal evolution to something as complex as today's human brain,'" Aspects of what this article discusses appear to be consistent with some of my comments regarding relatable aspects our central nervous system to an earlier time in its evolution.
http://news.discover...uman-brain.html
The article goes on to describe how these pre-brain structures in early animals "probably consisted of a group of densely packed cells that received and processed very basic information about food and the environment. The structure may have enabled our ancestors crawling over the sea floor to identify food sources, move towards them, and then later to integrate previous experiences into learning." The goal of this research, the author quotes, "'is to reconstruct and understand the evolution of brains in animals, to trace their neuronal composition and their function from the very beginning of animal evolution to something as complex as today's human brain,'" Aspects of what this article discusses appear to be consistent with some of my comments regarding relatable aspects our central nervous system to an earlier time in its evolution.
This post has been edited by DrmDoc: 3 September 2010 - 10:27 PM
- Posts: 172 | Joined: 12-August 10
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#23 8 October 2010 - 04:22 PM
imagine the humans remain waken throughout their life time. What actually happens if we do this is, that we will not be able to slow down the gathering of information. Therefore we may not be able to analyse, process the information in a clear way so that we could understand better. According to latest findings, scientists had discovered that there are 2 sections in our brain: Unconscious and conscious brain. When you are awake, you are using your conscious mind. Here, you will be acquiring information from your senses. But how do we save them? So, in order for those memories to get saved you will need some sleep.When you are sleeping you use your unconscious mind. So one of the main reason why you want to sleep is due to memory. And the other is you can get the maximum of your brain when you are sleeping. Sounds weired? 
Let me tell you a simple example. Imagine that you are about to choose something from a given varieties of information. For example, when you are choosing your vehicle. At a glance if you choose something, it is more likely to make mistakes but if you think about it in your leisure times and then make your selection, it is more likely that this selection is confident. When you are sleeping, there are alpha waves in your brain being emitted. In this condition you are in fresh and calm mind and you can think more critically that you were awake.
I have written a post regarding this matter with more detail and some tips where you can use your depth mind (unconscious mind) in variety of applications.
Link: http://globaltutor.b...-everybody.html
Let me tell you a simple example. Imagine that you are about to choose something from a given varieties of information. For example, when you are choosing your vehicle. At a glance if you choose something, it is more likely to make mistakes but if you think about it in your leisure times and then make your selection, it is more likely that this selection is confident. When you are sleeping, there are alpha waves in your brain being emitted. In this condition you are in fresh and calm mind and you can think more critically that you were awake.
I have written a post regarding this matter with more detail and some tips where you can use your depth mind (unconscious mind) in variety of applications.
Link: http://globaltutor.b...-everybody.html
This post has been edited by Ahamed: 8 October 2010 - 04:23 PM
- Posts: 12 | Joined: 28-August 10
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#24 9 October 2010 - 05:41 AM
Ahamed, on 8 October 2010 - 04:22 PM, said:
imagine the humans remain waken throughout their life time. What actually happens if we do this is, that we will not be able to slow down the gathering of information. Therefore we may not be able to analyse, process the information in a clear way so that we could understand better.
If you are suggesting information processing as a reason why we sleep, I disagree. The evidence our central nervous system (CNS) provides suggest that the basic processes of sleep evolved in the brainstem before those elements in the cortex associated with the synthesis of information. Although our conscious acuity appears to be enhanced by the sleep process, that is a relatively recent advantage of sleep rather than the primal reason why we sleep.
The elements of our brain structure associated with information processing are relatively recent compared to those primitive elements associated with the mediation of our energy stores and autonomic systems. Our recent brain elements arise from and are dependent upon the primitive elements of our CNS for functionality. If the primitive elements do not function efficiently, this can and does affect the efficiency and function of dependent recent elements. The functionality of our brainstem is dependent on the sleep process. When that process is disrupted, it has a rippling affect on hierarchical functions of our brain.
Quote
According to latest findings, scientists had discovered that there are 2 sections in our brain: Unconscious and conscious brain.
According to my read of the latest findings, our brain experiences two distinct functional states of cognitive active rather than some type of sectioning: Waking state [conscious] and the state of dreaming (unconscious).
Quote
When you are awake, you are using your conscious mind. Here, you will be acquiring information from your senses. But how do we save them? So, in order for those memories to get saved you will need some sleep.When you are sleeping you use your unconscious mind. So one of the main reason why you want to sleep is due to memory. And the other is you can get the maximum of your brain when you are sleeping. Sounds weired? 
Because our mental acuity and memory is enhanced after sleep periods inclusive of dreaming, some sleep researchers believe this process is some how associated with memory consolidation. If sleep improved our mental acuity and memory, we should find the elderly of sharper mind than they were in their youth since the elderly tend to sleep longer. However, that is not the case. Atonia, rather than dreaming itself, enhances the production of Orexin-A, which has be shown to reverse the affects sleep deprivation with the benefit of dream sleep. If some mental analyses or processing amid dream sleep was essential to the brain's functionality, orexin alone would not have proven as effective in deprivation study. We dream as a consequence of vestigial activity in the brainstem associated with the mediation of our metabolism amid prolonged periods of inactivity and rest. This activity is a vestige of the neural processes ancestal animals likely evolved to endur extended periods of nutrient privation.
This post has been edited by DrmDoc: 9 October 2010 - 05:46 AM
- Posts: 172 | Joined: 12-August 10
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