Suprachiasmatic nucleus expialidocious

| No Comments
Here's some practical science. In every person's brain, there is a region called the suprachiasmatic nucleus (or SCN). The name isn't important, but the SCN is our internal clock that tries to keep our bodies and minds on a daily schedule. You may have learned at some point that the brain naturally gravitates toward a 24-25 hour day when you take away the factors of sunlight and such. I've always been aware of circadian rhythms, but I've never really known what they're all about. Here's how it generally breaks down...

6:00am - Morning
6:45 - Sharpest rise in blood pressure
7:30 - Melatonin secretion stops
8:30 - Bowel movement most likely
9:00 - Highest testosterone secretion
10:00 - High alertness

12:00pm - Noon
2:30 - Best coordination
3:30 - Fastest reaction time
5:00 - Greatest cardiovascular efficiency and muscle strength

6:00pm - Evening
7:30 - Highest blood pressure
8:00 - Highest body temperature
10:00 - Melatonin secretion starts
11:30 - Bowel movements suppressed

12:00am - Midnight
2:00 - Deepest sleep
4:30 - Lowest body temperature

Rinse and repeat.

Climb aboard the dream weaver train

| No Comments
In an effort to keep my brain moving outside of work and school, I'm spending a few precious moments per day reading some pages in this wonderful book called Your Brain: The Missing Manual. The title might sound a little hokey, but the book is engaging, research-based, and totally not dumbed down.

I'm currently in the chapter about sleep. Like we all know about REM sleep, right? It's when our brains are practically in a state of awakeness and we do the most lucid dreaming. It's a pretty amazing phenomenon, especially considering that we still don't fully know what its function is for our brain or body. It's always seemed to me like a manifestation of our brains trying to make sense of random snippets of information that we take in throughout the day. But REM dreaming might actually primarily be a kind of brain-trainer. We first really saw this in action from a study that was done back in the 50s, when the neurons that cause paralysis during REM sleep (yup, we're actually physically paralyzed during our most lucid dreams) were cut in the brains of a few cats; while the cats were asleep, they got up and did things like clean themselves, pretend to stalk and fight, and go through the motions of attacks and retreats. (I totally want to see a video of this in action.)

If television has taught me anything, it's that when humans break their sleep paralysis, they sleepwalk down to the kitchen and make a sandwich. (Although I personally don't remember ever making lunch in my dreams.) In reality, I guess it's all about what we're especially focused on. One study arranged for people to play Tetris before going to sleep, and the subjects reported having Tetris-playing dreams; even a few amnesiacs dreamt of columns of drifting blocks, despite having no idea why! So it's like the brain tries to determine what's important at any given point in time and then tries to train itself during unconsciousness. Much to the disappointment of Gary Wright, your worries of today are probably not too likely to be taken away on the dream weaver train.

(What I want to know is: why do our brains insist on training us how to handle the situation of showing up to a test naked and unprepared?)

In conclusion, the take-away point of my lecture today is that sleep is good, and I should get more of it. Personally, I don't think I get enough REM sleep; I'd bet that a few too many others are in the same boat.

This actually is making me kind of sleepy right now. Great. I shouldn't have done this before finishing my dissertation work for the night. And what if I start sleepwalking tonight while I'm dreaming about sleepwalking? Man, this is getting heavy...

Procrastination

| No Comments
[Sorry, metaprocrastination.com is more or less down. Maybe it'll be back up eventually]

We all struggle with procrastination from time to time. At its worst, it can make you feel helpless and even hopeless. It can be extremely hard to "just do it," and even though there are things you 
can do, the problem is that we often don't know what they are. There is a new site dedicated to this at metaprocrastination.com, where you can start to find some good information about how to put off that procrastination until later.

And yes, these two sites are related in terms of who maintains them. No reason to hide that, I suppose!

How to get Windows for free (Legally!)

| 1 Comment
Are you looking to put a home-made computer together on the cheap? Or do you want to run Windows on your Mac but don't want to plop down more than $100 for a license?

Well, answer me this: are you enrolled in a high school, college, or university?

Then, my friends, you are entitled to your very own gratis (yes, FREE) copy of Windows Server 2008! I know, that doesn't sound like "XP" or "Vista," but it actually is Vista on steroids. Read on to learn more.

Back up your Mac wirelessly with Time Machine

| 2 Comments
With version 10.5 of the Mac OS X operating system (colloquially named "Leopard"), Apple introduced an incredibly easy way to back up your entire computer automatically. They named their software Time Machine, and designed it so that it keeps a constant running backup of your computer's files, from everyday documents, to e-mail inboxes, to crucial system files. If your system goes down in flames (figuratively...or literally, for those very unlucky few), your external backup hard drive will save the day. Whether you had to replace the inner storage of your computer or purchase an entirely new machine, you will be able to restore every single one of your files in one fell swoop via your trusty Time Machine.

Of course, in the cases where an entire system restore is not necessary, it's a cinch to pick and choose, whether it be a version of that book chapter that you regretfully hacked to pieces a week ago, or that folder of beloved photos from Cousin Merl's barbecue that your angel of a nephew not-so-innocently trashed yesterday.

When you plug in a new external drive to your Mac, you should be automatically asked whether you want to dedicate that hard drive to Time Machine. Easy enough. But what if you want to back up a Mac that isn't always physically connected to that drive? Like a laptop, for instance? Apple will tell you to purchase Time Capsule, which is a wireless router and hard drive combination that is designed to backup multiple computers over a home network. However, if you already have a wireless connection and an external hard drive, purchasing Time Capsule may seem a bit frivolous. Fortunately, Apple has built in the capability to use a regular ol' external hard drive for network backups -- they're just not going out of their way to tell you! Continue below to see the steps necessary set it up in almost no time at all...

How to be a pro when shopping for a computer

| No Comments

In the computer world, it can be hard for the average person to know exactly what he or she wants to purchase. Sure, you may think you know what you want, but once you're in the store and talking to the salepeople, it's too easy for all of that to fly right out the window.

For those who don't feel like they're fully "in the know," here are some terms that you should know about before heading into the computer store...

Sofa Control

| No Comments
Many people who bought a Mac recently have found that a remote control comes with it. It's a great little device to have if you're watching a DVD or listening to music, but it doesn't work with much else on the computer. This is where an ingenious little program called Sofa Control comes into play. It adds functionality to the remote so that it can be greatly more useful. It does cost money (about $15), but if you ever want to be able to give presentations or control your Mac from a distance, it's very well worth it.

We'll be back soon

| No Comments
Yes, this site broke down, but rest assured that we are working hard to fix it. Check back again soon!

Find recent content on the main index or look in the archives to find all content.

Recent Comments

  • Hockessin: With all the doggone snow we have gotten lately I read more
  • Tim: Hey, thanks for the comment. You actually don't have to read more
  • AtlMatt: This is exactly what i was looking for - a read more

Recent Assets

  • network.jpg
  • sharing.jpg
  • tm3.jpg
  • tm2.jpg
  • tm1.jpg
OpenID accepted here Learn more about OpenID
Powered by Movable Type 4.23-en