評論
打印
So one thing that I do agree with, and I think most experts would, is that the brain does have these dynamics.
其中一點我個人是同意的，我相信絕大多數專家也同意，那就是腦部確實有這樣的動態。
It does lag behind the skull and then catch up and move back and forth and oscillate. That we think is true.
它的運動遲于顱骨，接著逐漸追趕上，并向前向后振動，這一點上我們認為它是正確的。
However, the amount of motion you see in the brain in this video is probably not right at all.
然而，視頻中所示的腦部的運動大小，可能并不準確。
There's very little room in the cranial vault, only a few millimeters,
顱頂的空間極小，只有幾微米，
and it's filled entirely with cerebral spinal fluid, which acts as a protective layer.
同時這些空間填滿了腦脊液，這些腦脊液對腦部來說是一個保護層。
And so the brain as a whole probably moves very little inside the skull.
所以說，整體來看，腦部在顱骨內的移動極為微小。
The other problem with this video is that the brain is shown as a kind of rigid whole as it moves around, and that's not true either.
視頻中還有另外一個問題，視頻中所示的腦部，在它移動時像是一個堅硬體，這也是錯的。
Your brain is one of the softest substances in your body, and you can think of it kind of like jello.
人類的大腦是人體上最柔軟的物質之一，你可以把它想象成果凍。
So as your head is moving back and forth, your brain is twisting and turning and contorting, and the tissue is getting stretched.
所以當頭部前后晃動時，腦部在旋轉、扭曲，部分組織會被拉抻。
And so most experts, I think, would agree that concussion
我認為絕大多數專家都會同意這樣一個觀點，
is not likely to be something that's happening on this outer surface of the brain,
腦震蕩可能不是發生在腦部的外部邊緣，
but rather it's something that's much deeper towards the center of the brain.
而是發生在腦部的深處，接近腦部中央的位置。
