Monday, 10 December 2018

Speek good and people will listen you!


The man explains why people do not listen you and what to do to change such behavior:



He point the list of things which it is necessary to avoid during communications with people:
  • gossip
  • judging
  • negativity
  • complaining
  • excuses
  • lying
  • dogmatism

To increase power of voice you should speak:
  •  Honestly
  • Be yourself
  • Integrity
  • Be love - means be not negative
You can use different voice tools that increase the power of your speech:
  • register - deep
  • tembor
  • rhythm - not monotone
  • volume

The conclusion is:

If we will speak correctly and powerfully the world will sound beautiful and everyone will listen your ideas that worth to spread!

Sunday, 9 December 2018

Why people don't like their voice?


The scientist try to describe the phenomena - why people don't like their voice when they listen recorded voice. 

https://www.ted.com/talks/rebecca_kleinberger_our_three_voices


She told about "descent of the larynx" and growing human voice box from 7 to 11-17 centimeters. These changes happened because humans have stood on 2 feet.

Then the scientist told us about importance to study human voice. Not only because we use languages to communicate with each other but because for instance listening specific tone or voice temp we can understand begining of different deseses for instance heart attack or depression or Alzheimer's.  

Why our voice that we hear when we are speaking differs from our recorded voice? She explains - because when we speak we hear not only the sound but and bones vibration. So our internal voice has lower tone and more musical.

   

How do you know where we are?

The scientist tells us about several types of neurones that help us remember location of things for instance location of your car on parking:

https://www.ted.com/talks/neil_burgess_how_your_brain_tells_you_where_you_are

Scientists make tests on mouses and then check conclusions on people. To remember the place we use "location neurones" and "boundary neurones". Using this neurones we can measure distance from different walls or things. To return to place we use "grid neurones" they help us makes path to the remembered object.

The conclusion from the video - scientists just start to study human brain using modern technologies for instance MRI devices. And we will discover a lot of interesting things about how the human brain works in nearest future! 

Friday, 7 December 2018

What we will learn about brain before 2100


I've seen the speech of the neuroengineer:

https://www.ted.com/talks/sam_rodriques_neuroscience_s_next_100_years#t-6803

He told that nowadays to study brain we use animals for instance mouse or monkey. And scientists try to model human behaviour or mental disease. But animals brain is not complicated enough to be a model of human brain. To study carefully human brain or understand origin of brain diseases (like Parkinson) it is necessary to measure electrical activity of particular neurons. Now we can physically do it on animals but no way to do it on humans. 

One possible way is to drill tiny holes in the skull and put there electrical probes. Than we can start study healthy brain instead of ill. The next possible step is connect brain to the computer and record all memories on hard drives or take a photos from eyes. 

The speaker believes that in 2100 neuroscience will be able to measure electrical activity of particular neurons and treat all mental deseases.

Thursday, 6 December 2018

Language and shape of thinking


Does language influence to the manner we are thinking? This video answers definitely "yes":


The speaker gives several examples. For instance:
  • Direction

Language of tribe of hunters in Australia has no words "left" and "right". They use sides of light to point the direction, for instance: southwest. So all of them have very good possibility for navigation on territorial. 
  • Count

Some languages have no particular numbers. So the peoples that uses these languages are impossible to study math.
  • Nouns
All nouns have gender - female or masculine. But in different languages the gender of nouns are different. So people describe the one thing by different adjectives.

The consequence from the video is - the language influences on the shape of how people are thinking. And we should not only understand it but ask ourselves how we can think different about thinks. 


Why we have so "special" brain?


I've listened the speech of the biologist, where she explained the question: is the human brain special and why?

https://www.ted.com/talks/suzana_herculano_houzel_what_is_so_special_about_the_human_brain

The facts about our brain are:
  • It consists of about 86 billions neurones
  • Human brain weight is about 1.5 kg it is about 2% of whole body
  • But it requires about 25% energy that our body gets during the day from food
The facts about animal's and human's brains are:

  • Human brain is not the largest in the nature. For instance elephant's or whale's brains are bigger. 
  • The brain of the chimpanzee is equal in size to the cow, But the monkey obviously shows more mental behaviour because it has more neurones. 

Conclusion: the size alone does not play the main role in the "quality" of  brains. Main role plays the quantity of the neurones. And the quantity depends on neurones size. The less size of neurones the more them can fit into brainpan.

But apes have approximately the same size of the brainpan and the same size of the neurones. Why they don't have the same quantity of neurons and not so smart as people?

The answer - food. They are eating raw food about 8-9 hours per day but the energy is enough only for body and for small brain.

But human beings several 100 000 years ago became cook food on fire. From the cooked food body is able extract more calories. So these extra calories helped to increase number of neurons!

Tuesday, 4 December 2018

Adults can grow new neurons

I saw the following video:

https://www.ted.com/talks/sandrine_thuret_you_can_grow_new_brain_cells_here_s_how


In the video the neurobiologists tell us about recent scientific discoveries during human brain researchers. It is proved now that the adult brain grows about 700 new neurons every day in the hippocampus part of the brain. Of course it is not much compared to billions existing neurones. But what happens if the brain will not produce them at all?

Now we know that this will decrease memory quality and makes worse human mood. Can we increase the number of new born brain cells? Scientists discovered that yes our lifestyle can influences on that. For instance the following things decrease the number of new born cells: if we an we  are angry or tired or depressed. But the following things increase number of new generated cells: sport activities, sex.

And even good and proper meals increases ability generate new neurons. For instance it is necessary to decrease number of calories, alcohol and bad fat. But increase omega 3 fat and eat more blueberry. And scientists get interesting conclusion: the proper meal increases the number of new generated neurons and this in its turn makes better our mood!