Can the human brain store 4TB of data? How is that measured? Are there any studies to support that claim?
I'm no medical expert by any means, but according to this, roughly 2.5 petabytes. This seemed a little high so i looked some more.
This second article explains that if the brain used binary storage then it would be 1-10 terabytes, most likely around 3. But since the brain does not and it stores information in the connections it is much likely a lot more. But this article was written in 2000 I think.
The first article is on the high side, while the second article is on the more realistic side. But the truth is that no one knows because with the technology that we have and understanding of the brain it is impossible to accurately calculate this. from other sources that I have read it looks like between 3-100 terabytes is what is generally accepted. This is a large range, but because we don't know exactly. And a lot of the calculations assume things that we, as of right now, cannot be 100% certain on.
Considering the estimated number of neurons differs by factors of ten depending on who you read, this can't be answered. The brain does not work like a computer (whether that is good or bad, I am not sure)
Also, the human brain does not use 10% of its capacity.