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Posts tagged “electroencephalography

Intro to ICA

Independent component analysis, probably not something you hear about all that often unless you’re in a field that uses it. If you’ve found this via google or the such, then you’re probably looking for an explanation on what the heck ICA is and how to use it. Fear not, today we’re going over the why of ICA, why it works, why we use it, and why it isn’t the perfect tool we wish it was. Hint, the reason it isn’t perfect is because of math, stupid math. Quick note, I’ll be focusing on EEG uses for ICA, but there are tons of other applications and this knowledge will still apply to them as well.

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How can we record from the brain non-invasively?

Still my favorite photo, which I took showing the EEG setup process we use these days!

We can read your mind! Okay, not quite, we can read the electrical activity going on in the brain and we can do this non-invasively. That’s right, you can do it from your own home if you wanted (here). It’s easy and since you don’t have to break the skin, it’s about as safe as can be. The real question here is why does this even work? For that we need to talk a bit on biology so let’s do this!

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Early detection of dementia in Parkinson’s disease might be key to treatment

old age

old age

If Parkinson’s disease wasn’t bad enough for families to have to learn to deal with, about 80% of patients also develop dementia. That’s the problem with the brain; while it has the amazing ability to adapt to just about anything, it can’t fix everything. There are no particularly good solutions to Parkinson’s or dementia, however, early detection of dementia is key to keeping it at bay and a new study may have a way to do just that.

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