Re: SVJETSKI STRUČNJAK ZA MOZAK: "Više vremena haluciniramo nego što vidimo stvarnost"

by Leviathan2 12/6/2017, 15:42

jbte, ti mislis da se zajebavam, ja te glasove cujem od kad znam za sebe, znam ih i usutkat kad mi smetaju, inace znam s njima vodit fine razgovore

by Guest 12/6/2017, 17:08

My Brother Billo wrote:negdje sam citao da prilikom ekstremnih mucenja ljudi mozak/svijest stvori neku vrstu odbranbenog mehanizma,covjeku se ucini da to sto mu rade,ustvari rade nekom drugom a on sa strane stoji i posmatra

e to je to..isto kao i kad se jako razbjesnis..nisam to dozivio puno puta,ali...dakle,pukli svi limiti na provokacije i kojesta,odjedared kao da je netko preuzeo kontrolu nad umom i tijelom,a ja negdje samo cucim iza ociju gledam kao kroz oci promatraca..

tijelo i mozak se nafilali adrenalinom,svjesnost skucila u gledaliste,a sustav pripremio na fajt i nanosenje stete..drugom i sebi...

tad se bol skoro ne osjeca,kao nes u daljini,iako su udarci i ostalo jako zestoki...refleksi se ubrzavaju,vrijeme i ostalo kao da je nekako usporeno..zvukovi isto..

jako zanimljivo..
no to u jako ekstremnim slucajevima..

by Oh_Femder 12/6/2017, 17:39

pismejker wrote:vrlo zanimljivo...jok femderu,vi vidite ljepše nego je u stvari..da vidite puki realitet,panika bi vas uhvatila..mozag...

A ti vidiš?

...moga lica ne možeš vidjeti, jer ne može čovjek mene vidjeti i na životu ostati... Izlazak, 33,20

by **kic** 12/6/2017, 17:55

mozak popunjava mnoštvo praznina u onome što vidimo

by Oh_Femder 12/6/2017, 18:43

kic wrote:mozak popunjava mnoštvo praznina u onome što vidimo

U kompjutorskom žargonu to se zove 'cookies'. Umjesto da svaki put ponovo proučavaš sobu u kojoj se ujutro budiš, mozak na brzinu skenira (a više puta čak ni to) da li se u njoj nešto bitno promijenilo od sinoć (većinom uzme zdravo za gotovo da nije), i onda ju lodira iz memorije, umjesto da svaki put iz početka troši energiju na obradu podataka koji dolaze iz osjetila. I tako onda i većinu 'sajtova' u kojima se nađeš u svakodnevnom životu.

by **kic** 12/6/2017, 19:07

Oh_Femder wrote:
kic wrote:mozak popunjava mnoštvo praznina u onome što vidimo
U kompjutorskom žargonu to se zove 'cookies'. Umjesto da svaki put ponovo proučavaš sobu u kojoj se ujutro budiš, mozak na brzinu skenira (a više puta čak ni to) da li se u njoj nešto bitno promijenilo od sinoć (većinom uzme zdravo za gotovo da nije), i onda ju lodira iz memorije, umjesto da svaki put iz početka troši energiju na obradu podataka koji dolaze iz osjetila. I tako onda i većinu 'sajtova' u kojima se nađeš u svakodnevnom životu.

mozak u biti 'štedi' energiju tako..

by My Brother Billo 12/6/2017, 19:30

u neku ruku radi slicno kompjuteru :cat:svaki dan se restartuje

by Trinity 12/6/2017, 19:42

My Brother Billo wrote:u neku ruku radi slicno kompjuteru :cat:svaki dan se restartuje

Kako čiji, nečiji je u standbyu, nečiji hibernira, nečiji se pregrije ...:)

by My Brother Billo 12/6/2017, 20:09

da,ja svog krkam za kisikom u vidu gingko preparata a dobro je i za očurde i cirkulaciju,ima i nekih popratnih efekata ali ajde geek

by Guest 12/6/2017, 20:19

ovo da mozak halucinira većinu vremena i tako popunjava "praznine".. glupost lol .. ako nešto ne mogu objasniti nemoraju odmah valjati gluposti

by My Brother Billo 12/6/2017, 20:28

by **kic** 12/6/2017, 20:32

Pinochet wrote:ovo da mozak halucinira većinu vremena i tako popunjava "praznine".. glupost lol .. ako nešto ne mogu objasniti nemoraju odmah valjati gluposti

erm ne, imas testove na youtubeu ne da mi se traziti, npr ti stolicu sa strane u sobi mozda uopce ne vidis, ali mozak na temelji milijun prethodnih iskustava nju konstruira u tvom vidnom polju, jer je to "jeftinije" za mozak nego da pridaje cjelokupnu paznju onom sto vidimo..

by Oh_Femder 12/6/2017, 21:37

kic wrote:
Oh_Femder wrote:
kic wrote:mozak popunjava mnoštvo praznina u onome što vidimo
U kompjutorskom žargonu to se zove 'cookies'. Umjesto da svaki put ponovo proučavaš sobu u kojoj se ujutro budiš, mozak na brzinu skenira (a više puta čak ni to) da li se u njoj nešto bitno promijenilo od sinoć (većinom uzme zdravo za gotovo da nije), i onda ju lodira iz memorije, umjesto da svaki put iz početka troši energiju na obradu podataka koji dolaze iz osjetila. I tako onda i većinu 'sajtova' u kojima se nađeš u svakodnevnom životu.
mozak u biti 'štedi' energiju tako..

Pa ne baš. Mozak u stvari sve registrira i pohranjuje, na primjer broj dlaka u lijevoj obrvi babice koja te porodila :D Ta se ogromna količina podataka selektira, organizira i interpretira (što je zapravo psihološka definicija pojma 'percepcija') i krajnji rezultat se prezentira svijesti. Mozak dapače obrađuje i te subliminalne osjetilne informacije, ali ih često ne prezentira svijesti. Svijest je naime krajnje osjetljiva i na najmanji 'information overload'.

Nekad, dok su ljudi bili 'zaista primitivni' i duboko vjerovali u svaku vrstu natprirodnog, kad bi im neke od tih u uobičajenim uvjetima od mozga filtriranih i obrađenih senzornih informacija ipak zbog bilo kojeg razloga prodrle u svijest, oni bi to čuli kao 'božji glas'. Mi 'civilizirani' ljudi govorimo o intuiciji, a kad netko stvarno čuje glasove u glavi, dijagnosticiramo ga kao paranoidnog šizofrenika. Ali kao što dobro znamo, vrlo plitko ispod površine svakog normalnog čovjeka krije se vrišteći luđak koji jedva čega da eksplodira iz svojih okova :P

by red wolf 12/6/2017, 21:45

Koliko puta sam Vas ovdje i na onom propalom forumu pitao --> Jesu li Vaše misli Vaše?

by Guest 12/6/2017, 21:45

Sjetih se jednom,kad sam bio napravio jako veliko sranje..stvarno veliko..suočio sam se sa zakonskim progonom...imao sam filling da lebdim,da se sve to nekom drugom dogadja,kao da sanjam,kao da gledam film..
Mozak je bio opterecen postojecim problemima i njihovim rjesavanjem,a posto je to bila sve samo ne normalna situacija,mozak je slao svijesti "verziju",daleko podnosljiviju,nego sto stvarno jeste...
uffff..ne ponovilo se..... PEACE MAN.. :20

by **kic** 12/6/2017, 22:42

http://www.index.hr/black/clanak/sedam-nacina-na-koje-vas-vas-mozak-zavarava/720195.aspx

by Guest 12/6/2017, 23:17

Mozak vani ništa ne vrijedi! Kilo mozga je dvije marke.

by My Brother Billo 13/6/2017, 03:16

jesi probo' kad krmeći mozak?

by My Brother Billo 15/6/2017, 14:25

SVJETSKI STRUČNJAK ZA MOZAK: "Više vremena haluciniramo nego što vidimo stvarnost" - Page 2 Brain-algebraic-topology-frontiers_1024

Conceptual illustration of brain networks (l) and topology (r), courtesy of Blue Brain Project

The Human Brain Can Create Structures in Up to 11 Dimensions
"We found a world that we had never imagined."

SIGNE DEAN
13 JUN 2017

Neuroscientists have used a classic branch of maths in a totally new way to peer into the structure of our brains. What they've discovered is that the brain is full of multi-dimensional geometrical structures operating in as many as 11 dimensions.
We're used to thinking of the world from a 3-D perspective, so this may sound a bit tricky, but the results of this new study could be the next major step in understanding the fabric of the human brain - the most complex structure we know of.
This latest brain model was produced by a team of researchers from the Blue Brain Project, a Swiss research initiative devoted to building a supercomputer-powered reconstruction of the human brain.
The team used algebraic topology, a branch of mathematics used to describe the properties of objects and spaces regardless of how they change shape. They found that groups of neurons connect into 'cliques', and that the number of neurons in a clique would lead to its size as a high-dimensional geometric object.
"We found a world that we had never imagined," says lead researcher, neuroscientist Henry Markram from the EPFL institute in Switzerland.
"There are tens of millions of these objects even in a small speck of the brain, up through seven dimensions. In some networks, we even found structures with up to 11 dimensions."
Human brains are estimated to have a staggering 86 billion neurons, with multiple connections from each cell webbing in every possible direction, forming the vast cellular network that somehow makes us capable of thought and consciousness.
With such a huge number of connections to work with, it's no wonder we still don't have a thorough understanding of how the brain's neural network operates. But the new mathematical framework built by the team takes us one step closer to one day having a digital brain model.
To perform the mathematical tests, the team used a detailed model of the neocortexthe Blue Brain Project team published back in 2015. The neocortex is thought to be the most recently evolved part of our brains, and the one involved in some of our higher-order functions like cognition and sensory perception.
After developing their mathematical framework and testing it on some virtual stimuli, the team also confirmed their results on real brain tissue in rats.
According to the researchers, algebraic topology provides mathematical tools for discerning details of the neural network both in a close-up view at the level of individual neurons, and a grander scale of the brain structure as a whole.
By connecting these two levels, the researchers could discern high-dimensional geometric structures in the brain, formed by collections of tightly connected neurons (cliques) and the empty spaces (cavities) between them.
"We found a remarkably high number and variety of high-dimensional directed cliques and cavities, which had not been seen before in neural networks, either biological or artificial," the team writes in the study.
"Algebraic topology is like a telescope and microscope at the same time," says one of the team, mathematician Kathryn Hess from EPFL.
"It can zoom into networks to find hidden structures, the trees in the forest, and see the empty spaces, the clearings, all at the same time."
Those clearings or cavities seem to be critically important for brain function. When researchers gave their virtual brain tissue a stimulus, they saw that neurons were reacting to it in a highly organised manner.
"It is as if the brain reacts to a stimulus by building [and] then razing a tower of multi-dimensional blocks, starting with rods (1D), then planks (2D), then cubes (3D), and then more complex geometries with 4D, 5D, etc," says one of the team, mathematician Ran Levi from Aberdeen University in Scotland.
"The progression of activity through the brain resembles a multi-dimensional sandcastle that materialises out of the sand and then disintegrates."
These findings provide a tantalising new picture of how the brain processes information, but the researchers point out that it's not yet clear what makes the cliques and cavities form in their highly specific ways.
And more work will be needed to determine how the complexity of these multi-dimensional geometric shapes formed by our neurons correlates with the complexity of various cognitive tasks.
But this is definitely not the last we'll be hearing of insights that algebraic topology can give us on this most mysterious of human organs - the brain.

by Sponsored content