Monday, February 21, 2011

Thank Wisconsin It's Friday--a Rachel Maddow segment

Yes, remember the Wisconsin labor movement of the past as you clock out for the weekend.


Thursday, February 3, 2011

How to create a collective lapse of memory

I caught this on Rachel Maddow last night. It seemed to fit into the general theme here.


Thursday, January 20, 2011

Denial




A good piece with Bob Herbert about our "lapse of memory" when it comes to American violence.

Monday, January 17, 2011

Martin Luther King Day




Another Monday holiday, but it wasn't always so...

Monday, January 10, 2011

The Tell-Tale Heart

Over the last year and a half or so, I've had the great good fortune to reconnect with some of my long lost high school friends. One of the sad things that  has made this current bond a bit stronger is that we collectively mourned the passing of two of our friends and peers at about this time last year, both of whom had been in my extended circle. One of them was Dagmar Matzat, who I especially remembered for her dramatic flair.

Here's why I'm choosing to commemorate her in this particular blog. When we were all in eighth grade together, Dagmar did a solo rendition of Poe's The Tale-Tell Heart. She was just a young girl, barely a teen, but she managed to put her heart and soul into her rendition:

TRUE! — nervous — very, very dreadfully nervous I had been, and am; but why will you say that I am mad? The disease had sharpened my senses — not destroyed — not dulled them. Above all was the sense of hearing acute. I heard all things in the heaven and in the earth. I heard many things in hell. How, then, am I mad? Harken! and observe how healthily — how calmly I can tell you the whole story.

I'll never know why she chose this particular story, but I will until I lose life or sentience always be able to picture her pacing the stage in a fevered way, conveying the madman's character.

The odd thing, though, is that no one I know has the slightest recollection of this piece. This role, this bravery of undertaking it, which is the defining essence for me of my long ago friend, is not part of anyone else's general consciousness. Perhaps there is someone else in the world who remembers this, but among the four or five people I asked, it made not an impression, and I know at least some of them were there that day.

I suppose Dagmar herself would have remembered it, but alas, I will have no chance to ask her, and it's quite possible that even she would by now have suffered a lapse of memory.

Tuesday, December 28, 2010

Foreign Policy reviews the year

One of the reasons I started this blog was to recall moments in our collective life that have quickly passed m thought. Haven't kept too true to that, but luckily, Foreign Policy has done a much better recap than I ever could.

How many of these moments have slipped from your mind already? 

Tuesday, December 7, 2010

The Brain's Memory "Buffer"

It's ironic but appropriate that I don't remember how I happened upon this  article on scientific research into the cellular differences between short term and long term memory storage. The newspaper is called The Hindu, and so it's not one that I come across in my normal web wandering.

It's probably more informative to read the article, but just to move this info from my short term memory to something a little longer, I'll summarize by saying that scientists have found evidence that short term memory is held in single nerve cells in the front of the brain, for a minute or longer. "Permanent" memory (to me a dubious concept) is formed when the amino acid glutamate stimulates nerve cells in the brain to reorganize and strenghten their connections with each other. But this process takes time and is to slow to deal with rapidly incoming information--as what isn't these days?

Enter metabotropic glutamate transmission. A rapid fire signal stimulates single cells to be temporary storage for moment to moment information. The example the article uses is that of a card shark counting cards in a game of blackjack. This would seem an oddly random example, except it goes on to say that casinos have figured out that it the type of memory that is most sensitive to disruption by alcohol and noisy distraction.

"It's more like RAM [random access memory] on a computer than memory stored on a disk," Dr. (Don) Cooper said. "The memory on the disk is more permanent and you can go back and access the same information repeatedly. RAM memory is rewritable temporary storage that allows multitasking." 

The researchers also did experiments on mice to see how these findings work with addiction. Apparently, a neurochemical called dopamine is what helps focus attention and make fast decisions, but after mice were given repeated doses of cocaine to simulate addiction, the  short term memeory "buffer" cells were no longer
as easily stimulated. Even adding dopamine after did not have the effect of focussing the mice's thought processes.

"If we can identify and manipulate the molecular components of memory, we can develop drugs that boost the ability to maintain this memory trace to hopefully allow a person to complete tasks without being distracted," Dr. Cooper said. "For the person addicted to drugs, we could strengthen this part of the brain involved with decision-making, allowing them to ignore impulses and weigh negative consequences of their behavior before they abuse drugs."

Maybe, maybe not. As usual with these things, though, I mainly feel sorry for the mice.