Maybe I`m posting this in the wrong topic, but I`ll try anyway....

Here is a question I hope someone can answer. Of the following two conditions, which could be the abuser and which could suffer the trama.
Person one: A very small Hippocampal volume R/T over all brain size.
And person two: Has an increase in callosal white matter volume, an increase in callosal length, a decrease in callosal thickness and an increased connectivity between the brain hemispheres.

Could you please help me with the answer to this?

I think I am not the guy for the answering job,

but is there any relation between trauma and connectivity increase over the brain??