So there’s loads of different neuroimaging methods out there that are used depending on what it is you’re looking for! I’ve had the privilege of actually studying it and there’s so so many different types more than just functional MRI that people don’t really know about so here are a few and what they’re used for an how they work.

MRI - Magnetic Resonance Imaging

The most commonly used form of neuroimaging and for good reason. MRI uses the body’s tissue density and magnetic properties of water to visualise structures within the body. It has really incredible spatial and temporal quality and is predominantly used in neuroscience/neurology for looking for any structural abnormalities such as tumours, tissue degeneration etc. It’s fantastic a fantastic form of imaging and is used in numerous amounts of research.

Functional MRI (fMRI)

These images are captured the same way as MRI but the quality is a little bit lower because the aim is to capture function (those blobs you can see) as quickly and accurately as possible so the quality is compromised a little bit. Nonetheless, fMRI usually uses the BOLD response to measure function. It measures the amount of activity in different areas of the brain when doing certain things, so during a memory test for example, and it does that by measuring the amount oxygen that a certain area requires. The increased oxygen is believed to be sent to an area where there is more neuronal activity, so it’s not a direct measurement but rather we’re looking at a byproduct. There are numerous studies trying to find the direct link between the haemodynamic response and neuronal activity, particularly at TUoS (where I’m doing my masters!) but for the moment this is all we have. This sort of imaging is used a lot for research and checking the general function of the brain, so if you were to have had surgery on your brain, they may run one of these just to see which areas might be affected from it and how, or in research we’ve used this a lot to research cognition - which areas are affected during certain cognitive tasks (ie my MSc thesis - Cognition in schizophrenia and consanguinity). 

Diffusion Tensor Imaging (DTI)

This is my current favourite type of NI right now! DTI is beautiful, unique and revolutionary in this day and age, it’s almost like sci-fi stuff! DTI measures the rate of water diffusion along white matter tracts and with that calculates the directions and structural integrity of them to create these gorgeous white matter brain maps. They are FANTASTIC for finding structural damage in white matter - something that is making breakthroughs in research lately ie. schizophrenia, genetics and epilepsy. It measures the rate of diffusion which tells you about possible myelin/axonal damage and anisotropy, so the directions and if they are “tightly wound” or loosely put together - think of it like rope, good FA is a good strong rope, poor FA is when it starts to fray and go off in different directions - like your white matter tracts. My current research used DTI and it was honestly surreal to work with, the images are also acquired through an MRI scanner so you can actually get these images the same time you’re getting MRI’s done, functional or otherwise! 

Positron Emission Tomography (PET)

One of the “controversies” (if you could call it that) is the use of radioactive substances in PET scanning. It requires the injection of a nuclear medicine to have the metabolic processes in your brain light up like Christmas! It uses a similar functional hypothesis to BOLD fMRI, in that it is based on the assumption that higher functional areas would have higher radioactivity and that’s why it lights up in a certain way. It depends on glucose or oxygen metabolism, so high amounts of glucose/oxygen metabolism would show up red and less active areas would show up blue, perfect for showing any functional abnormalities in the overall brain. However it has incredibly poor temporal resolution and due to it’s invasive nature, MRI is chosen more often. (The pictures are gorgeous though!) 

Electroencephalography/Magnetoencephalography (EEG & MEG)

These are not “imaging” types in the stereotypical sense. They create a series of waves that you can physically see (think of the lines you get on a lie detector!). Electrodes/Tiny magnets are placed on the scalp/head in specific areas corresponding to certain brain structures. EEG picks up on electrical activity which is the basis of neuronal function, whereas MEG picks up on magnetic fields - the same property that is utilised by MRI. One of the biggest issues with EEG is that deeper structures passing through tissues get distorted, whereas MEG doesn’t because it only measures the magnetic properties. I’ve not had a lot of experience with either of these but I do know EEG is used in a lot of medical procedures to measure brain activity, from measuring seizures and sleep disorders to measuring brain activity in a coma. It’s fantastic and if you can actually figure out how to conduct and interpret results it’s an invaluable tool into looking at electrical activity. 

I’m 22. For dinner this evening, i’m going to cook fried eggs on my own, for the first time in my life. And if succeed, i’ll be proud of my accomplishment.

Reading this, you must thunk “Well, it’s ridiculous” or “You must be pretty lazy” or “Millenials, really…”. You’ll post your sarcasms, your mockeries and then you’ll go on with your life, despising people like me.

I shouldn’t be so proud of something so mundane, you must think, right ? But you don’t have the whole picture. You don’t have the whole story.

I’m dyspraxic. It means that my body doesn’t always obey to my orders and that sometimes, tying my shoes can be such a challenge that i’ll prefer to wear baskets with velcro.

It takes a huge amount of time for me to peel an orange and neurotypicals are always on-board to laugh about my “clumsiness”. Because it’s so funny, right ?

I suffer from impostor syndrome due to bullying and other tough moments in my life. I’m not able to handle well any kind of failure.

The tiniest mistake can lead me to an awful meltdown, because all i can think about is : “If i’m not faultless, then people will find out that i’m an "impostor” and they’re going to hate me.“.

This feeling is not just a "fling” or a thought in the moment. It’s something that tortures me every day, so much that i can’t help, but spying on my colleagues’ discussions, worried that they might say bad things about me.
So, if i’m not able to cook this fried egg this evening, i’ll probably have to face a meltdown. And a bad one.

I have executive dysfunction issues. Which means that i have to find the will to actually cook and not just take something in the fridge and put it in the microwave. Sometimes, i can’t even eat because i’m unable to go to the kitchen. And, while cooking, i still have to not forget about my fried eggs, to be focused on the task and not let myself be distracted by anything else.

All of this can be summed up in two words, which define me : Autistic. Disabled.

I’m autistic and so, i’m disabled. I can live a fairly normal life, but i still have a lot of troubles to accomplish mundane things, to do what neurotypicals are able to do without even thinking about it.

So yeah, if you think it’s funny to invade a post where an autistic person, neurodivergent person and/or physically disabled person are proud of themselves for doing what you think are the simplest things, then you’re an awful person.

And i pity you.

I’m going to cook my fried eggs tonight. And i’m gonna be so freakin’ proud of me !

2

etsyfindoftheday 2 | 8.18.16

theme thursday: alternative engagement rings

raw 3-diamond engagement ring by avello

LOVE the rustic, edgy look of this 3-stone raw diamond ring, set in unique prongs and photographed beautifully. so cool.

🔪Don’t hold my hand if you aren’t willing to take everything that comes with it🔪

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Makeup: @tiyanarobinsonbeauty | Wardrobe Stylist: Anoko Zankli | Hair Provided by @trueandpuretexture
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Taking Donations (help!)

Hey everyone, my name is Sae,and i need your help. as you may know iv had commissions open to help with my finances as i am unemployed and mentally ill. And as of recent news…due to health problems i now have a specialized diet that’s extremely costly,and important, to maintain. I’m taking donations to help me support and feed myself.

on top of being able to feed and take care of myself, I also have textbooks i need to buy for my upcoming semester, along with art supplies; All donation amounts are greatly appreciated!! il also still be taking commissions. You can find my donation button on my sidebar below my description, as the picture shows below.

reblogging this post is also greatly appreciated, thank you for reading.

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Hair Talk Alert: If you know anything about me, you know how much my hair is important to me! Why? Because it’s one of the many ways I can freely express myself! Although I love my natural tresses, sometimes I just want to switch it up! I love hair that makes me feel GOOD, CONFIDENT and like a QUEEN
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True and Pure Texture Extensions is just the brand for that! I’ve been in love ever since I was introduced (thank you so much @dvglam 😩😩). The texture is beyond amazing and the hair is so versatile!! I can wear it as a fro one day (yes scroll down and see my fro magic✨) and wand curl it the next! I am not only excited to be working with this amazing brand because of the effortless quality of the hair, but it is VERY IMPORTANT to me that I support black owned businesses! Together, we can change the world!!
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Order now and thank me later! Use my discount code “Toboretexture” and get 10% off your order!! So excited for what’s to come! Stay tuned! ••••••••••••••••••••••••••••••••••••••••
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Hair: @trueandpuretexture “Jasmine Coil” | Wig made & styled by @asha_maximore | Photography by @art_isadanma of @nkemlifeblog |

#protectivestyles #naturalhair #curlbox #jasminecoil #trueandpuretexture #blackgirlmagic #blackexcellence #blackbusiness #queen #confidence #bold #toboreoweh #theunapologeticBLACKWOMAN

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