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[SD] Human Brain 'Smells' What It Expects Rather Than What It Sniffs - Page 3

post #21 of 34
Quote:
Originally Posted by matty0610 View Post
Here you know for a fact you are about to smell roses. So mentally you rule out all things that don't have the potential to smell like roses. Like garbage. Unless your garbage smells like roses, then you can be the next martha stewart.
And it's not with smell too. It's with taste as well. You can easily verify this: Make a cup of tea and add in a little milk. Hand it to someone and tell her, here you go, your coffee with milk. That person will expect coffee and while that person may actually like tea with milk, the person is guaranteed to spit it out as it is not matching with an expected coffee taste even when that person would like the cup of tea just as much.

Humans are better at comparing against templates than derieving patterns through pattern recognition.

We known this even before scientific proof in the sayings "You just gotta know what to look/listen for" which directly translates to template matching. Without knowing the template you'll be hard pressed to find out on your own.
Edited by MagicBox - 10/11/11 at 10:13am
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post #22 of 34
Thread Starter 
Quote:
Originally Posted by PappaSmurfsHarem View Post
Perhaps, but they didn't really get into specifics. Your brain controls how you perceive and interact with everything. So it is somewhat easy to conclude that you brain is expecting to smell certain things. It has been stated many times that "the sense of smell is the strongest sense tied to memory."

If someone were to say is this rotten, and you have smelled(smelt?) the same thing before when it was rotten, you will already have a preconceived notion of what it would smell like.

The question is, are they saying that because you have a preconceived notion of how it would smell that it would automatically smell that way at first, or just that you can recall from memory what something smells like.

If it is the latter, IMO this article isn't stating much.
Read the rest of the article. It explains their methodology.

There is a link to the journal article here: http://www.cell.com/neuron/retrieve/...96627311007318

Here is the summary of the journal article:
Quote:
Neuroscientific models of sensory perception suggest that the brain utilizes predictive codes in advance of a stimulus encounter, enabling organisms to infer forthcoming sensory events. However, it is poorly understood how such mechanisms are implemented in the olfactory system. Combining high-resolution functional magnetic resonance imaging with multivariate (pattern-based) analyses, we examined the spatiotemporal evolution of odor perception in the human brain during an olfactory search task. Ensemble activity patterns in anterior piriform cortex (APC) and orbitofrontal cortex (OFC) reflected the attended odor target both before and after stimulus onset. In contrast, prestimulus ensemble representations of the odor target in posterior piriform cortex (PPC) gave way to poststimulus representations of the odor itself. Critically, the robustness of target-related patterns in PPC predicted subsequent behavioral performance. Our findings directly show that the brain generates predictive templates or “search images†in PPC, with physical correspondence to odor-specific pattern representations, to augment olfactory perception.
post #23 of 34
Quote:
Originally Posted by Setzer View Post
But that would be done by ourselves, this is something we can't control
I think thats done by our brain also. If someone shows you somthing blue after telling you its red you immediatly know its wrong without even thinking .

What i want to know is what happens when we are blindfolded and given a smell we have never smelled, and we were told its somthing else other than what it is. then given the actual object.
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post #24 of 34
so whoever smelt it, dealt it?
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post #25 of 34
You could theoretically eat something healthy that does not taste good taste amazingly good..
Edited by ZealotKi11er - 10/11/11 at 3:25pm
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post #26 of 34
This reminds me of a trick one of my friends taught me. The next time you come across a dead skunk, imagine it smells like coffee instead of skunk. It really works!
post #27 of 34
This doesnt surprise me.
It is a well known perception that the brain and our mind influence how we see and experience the physical world far more than we think.
But some more scientific proof cant be a bad thing.
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post #28 of 34
Quote:
Originally Posted by xPwn View Post
Wow! Thats awesome!
That's my avatar.

And I learned about this stuff by watching ZOOM on PBS.
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post #29 of 34
I am allways sensitive about rotten food so if i think its rotten i give it to a family member with this words " try it,it tastes awesome" if he/or she gives the same reaction i drink or not.I know its cruel but its better to drink some rahter than wasting it.
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post #30 of 34
Quote:
Originally Posted by jacobrjett View Post
I have always thought the same for food and taste.

At my work, I make burgers. Yeah sad job, I know. But I have always thought, if you make the burger look pretty, it will taste nicer to the customer then if it looks sloppy, even if its the exact same burger.

Especially with Pizza, although I dont make pizza - if the pizza looks amazing, but tastes the exact same as a old gross looking pizza, the nice looking pizza will taste better. I have thought in our head, we prepare ourselfs with something to expect.
People eat first with their eyes
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