Video Creator’s Channel Chris Williamson

Its Really Intimate That Receptor In The Nose Thats

detecting what’s out there in order to make its report to the brain actually binds to the molecule grabs onto it so for a moment a split second that’s right that that thing that you’re smelling is part of you. What have you spent the last few years researching smell and more particularly smells so things in the world that we encounter and experience every day that we generally don’t pay a lot of attention to and that turn out to be really really well at least interesting enough to me to spend 10 years on it. I mean interesting enough to write everyone who’s watching on Youtube is going to be able to see the size of this tome here. I also have to admit. I ruptured my achilles a couple of months ago and this is the only book.

That Was High Enough To Work As

a step for when I also needed to do some of my exercises um so also it’s got it’s got multiple uses. Let’s let’s start then let’s define our terms. What is a smell so a smell is a perception that we human beings have that’s actually generated in our brains, but it is stimulated by molecules in the world little bits of the things around us. So in that sense smell is the most direct contact we have with the world because sight is a matter of you know reflected light waves and hearing is pressure waves in the air. It’s smell that actually gives us information about the particular things themselves and we detect them by noticing molecules of theirs that are small enough to escape those things and fly through the air so that we can inhale them and when we inhale them, they interact with a receptor in the nose.

The Receptor Then Reports That Its Received

something from the outside world to the brain and then the brain deals with that it. It turns that information into a perception, but not just based on that one thing alone. It’s based on all the other information. It’s getting at the same time and our database of experience, and then it gives us a an interpretation of what it is that we’ve encountered where does a smell manifest because a touch manifests where where on my body is affecting the object the taste manifests on my tongue how. Does a smell make the sensation of a smell that’s a great question and it turns out that because the brain is trying to integrate all this different information.

Its Kind Of Leading Us To How Should

we say ascribe the smell to the thing something around us. You know it we’re detecting it in our nose right here, but we don’t generally think of smells as I don’t feel it in my nose yeah yeah yeah, and it’s really interesting what happens when we eat something because smell is a very important aspect of flavor. Really the dominant aspect of the flavors of foods and what’s happening. When we detect the smell from food is that or we could call it aroma nicer nicer term for foods when we have something in our mouth. When we exhale air passes from the mouth through the nose out and it’s that root that gives us the impression of what’s in our mouth and it turns out that you know when we think about the flavor of food.

We Think Of The Flavor Being In

our mouth because that’s where the food is, but in fact the smell is being detected up here. So the brain kind of relocates it to the place where the the action is and that’s why we think that the the smell is there rather than there Can you impact the taste of something by affecting your breathing technique then yes absolutely um and it I mean lots of different things to say about that but you know one of them is simply um how how much of those molecules are introduced into your nose and that has to do with how. close you are to the thing um how deeply you breathe in how often you breathe in You know Sniffing is a way of you know picking something up. You’re you’re you know there’s something out there, but you’re not quite sure what it is. So you’re sniffing it out that sniffing is repeated intakes of those molecules to give our receptors and brain another chance to figure out what it is.

I Always Noticed When Everyone Will Know This

you put your hand down toward a dog and it it smells your hand, but it does it in a sort of a. It does that very quick in and out I’m going to guess that that’s what the dogs are trying to do what’s the difference when smelling something between one long inhale and multiple very short inhales well with with one long one what’s going to happen. Likely is that your receptors will not have time to reset you know if you keep breathing in the same thing constantly. Your brain will actually pay less attention to it because it kind of becomes kind of part of the the background. You know the wallpaper of your experience, whereas if you breathe in and out the the sensation is going on and off and your brain is able better to pay attention to that and perhaps identify what it is that’s that’s doing it and by the way animals sniffs are really really short.

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You Know Theyre Fractions Of A

second um i’ve I’ve you know tried to time myself. I I can’t do that I would pay good money to watch that video of you trying to time yours your sniffs, but it’s it’s fun you know it’s. It’s a sense that we kind of take for. granted that we don’t really um exercise and you know it’s it’s really easy to do you can do it just sitting right here talking to each other. I mean one of the things that I write about in the book is the smell of a laptop.

You Know If You Stick Your

nose down next to the keys and inhale. You’ll get the smell of the the circuit boards in there which are made of particular molecules that are given off and so it has a very particular smell so it’s it’s something that that’s one of the reasons I loved the last 10 years even though it was kind of a long haul is that there’s just so much out there to pay attention to that we generally don’t one of the things that I really enjoyed that you said at the beginning was about how it’s one. of our most direct senses and you’re correct like touch it smell is kind of like touch If the thing you were touching turned into a volatile and went inside of you. Yes little bits of the thing that you’re touching getting in you and then you noticing it in a completely different way yeah, and in fact it’s it’s really intimate um so that receptor in the nose that’s detecting what’s out there in order to make its report to the brain actually binds to the molecule grabs onto it so for a moment a split second that’s right that that thing that you’re smelling is part of you and it’s very dangerous when I think of some of the smells that have entered my nose. I don’t know if I want to be a part of them exactly exactly it it’s you know it explains perfectly why it.

Is When Something Doesnt Smell So

good we hold our nose We don’t we don’t allow ourselves to take it in because we have this kind of sense that it’s becoming too too close to our insides. Why can we detect smells? We can detect smells mainly because our animal ancestors are able to do that and have been able to do that from the earliest forms of life on earth and that’s because it’s really important for living things to know what’s around them in order to know you know what direction food might be what direction something dangerous might be and so chemical sensors and that’s what the sense of smell is a chemical sense are is probably the earliest sense that the living things had no way even before eyesight Oh eyes are really complicated structures you know bacteria have chemical senses um things that we think. of as being really primitive and not really doing anything except you know going blindly through through the world, hoping to luck out on finding some some food no They. They have senses systems for detecting molecules and then changing their behavior in order to take advantage of that information and that would be more analogous to smell than it would be to any other sense that’s right that’s right because it is again latching on to a molecule taste is also a chemical sense um and so you could say that these early forms would be a combination of taste and smell. I was looking at I can’t remember what I was learning about E-coli bacteria living in the gut and basically they can spin one way and it makes them go in a circle or they can spin the other way and it makes them go straight.

And They Basically Have An If This

then that function which is if the I think that they might be looking for perhaps glucose if the area that they move to has more glucose, then spin in the direction that makes them go straight. If it doesn’t then spin in the direction that makes them the other way It’s like such a simple. You know you could write it into a computer code in two minutes um but yeah that’s utilizing the chemical response that’s right they have to have the receptor for glucose to know that it’s out there exactly don’t you so smells are created by these little volatiles tiny little particulates of whatever it is that goes on and they’re made up of something fundamental. I know there’s five basic tastes right is the same thing true with smell no that’s the the thing that makes smell.

Really Special So Its True That

we have these two chemical senses taste on the tongue and smell in the nose taste is limited to about a dozen different sensations. There are arguments these days about exactly how many but at least sweet sour salty bitter savory. Then some scientists would add a couple of others, but that’s that’s basically it smell. We have around 400 different receptors which can act combinatorially to detect many many different molecules so thousands upon thousands upon thousands and again scientists argue about exactly how many but it’s it’s way more than we can detect with taste and um.

Its What Gives The The Gives Us The

the most particular information about the world around us. If smell is so fine if the the way that we can smell things, the combinations that we can come out with so much greater than taste. I would I would guess that most people if I said you’ve got to lose one of your five senses.

Summary

A smell is a perception that we human beings have that’s actually generated in our brains, but it is stimulated by molecules in the world little bits of the things around us . In that sense smell is the most direct contact we have with the world because sight is a matter of you know reflected light waves and hearing is pressure waves in the air. It’s smell that actually gives us information about the particular things themselves and we detect them by noticing molecules of theirs that are small enough to escape those things and fly through the air so that we can inhale them . When we inhale those molecules, they interact with a receptor in the nose . The receptor then reports that it’s received something from the outside world to the brain and then the brain deals with that it. turns that information into a perception, but not just based on that one thing alone . It’s based on all the other information, and then it gives us a perception of the other things alone. It is based on the other…. Click here to read more and watch the full video