Aachen Railroad Station, WWII,1945.
There’s a certain Slant of light,
Winter Afternoons –
That oppresses, like the Heft
Of Cathedral Tunes –
Heavenly Hurt, it gives us –
We can find no scar,
But internal difference,
Where the Meanings, are –
None may teach it – Any –
‘Tis the Seal Despair –
An imperial affliction
Sent us of the Air –
When it comes, the Landscape listens –
Shadows – hold their breath –
When it goes, ’tis like the Distance
On the look of Death –
There’s a certain Slant of light – by Emily Dickinson.
When the brain’s primary “learning center” is damaged, complex new neural circuits arise to compensate for the lost function, say life scientists from UCLA and Australia who have pinpointed the regions of the brain involved in creating those alternate pathways — often far from the damaged site.
[ ]…Zelikowsky said she found it interesting that sub-regions in the prefrontal cortex compensated in different ways, with one sub-region — the infralimbic cortex — silencing its activity and another sub-region — the prelimbic cortex — increasing its activity.
“If we’re going to harness this kind of plasticity to help stroke victims or people with Alzheimer’s,” she said, “we first have to understand exactly how to differentially enhance and silence function, either behaviorally or pharmacologically. It’s clearly important not to enhance all areas. The brain works by silencing and activating different populations of neurons. To form memories, you have to filter out what’s important and what’s not.”
It is probably important to not let this news give one false hope. In cases of severe head trauma – brain injury from an accident or war wound, there may not be enough healthy tissue in possible alternate neurons to form new connections.