Saturday, November 29, 2008
Brains More Distracted, Not Slower with Age: Scientific American: "Adam Gazzaley of the University of California, San Francisco, and his colleagues asked two groups—one made up of 19- to 33-year-olds and the other of 60- to 72-year-olds—to perform a memory task. The researchers used electroencephalography to record electrical signals from the participants’ brains in milliseconds during the task. In contrast to the younger adults, the older group could not suppress distracting stimuli during the first 200 milliseconds after exposure. “At later time points, the ability to ignore does show up,” Gazzaley says. “It’s not abolished, just delayed.” By then, however, the irrelevant information had interfered with the memory task, making the older group less accurate overall than the younger group."
Posted by teckron at 2:28 PM
Friday, November 28, 2008
Thursday, November 27, 2008
Tuesday, November 25, 2008
The phone rings and the lady of the house answers, 'Hello.'
'Mrs. Sanders, please.'
'Mrs. Sanders, this is Doctor Jones at Saint Agnes Laboratory.
When your husband's doctor sent his biopsy to the lab last week, a
biopsy from another Mr. Sanders arrived as well.
We are now uncertain which one belongs to your husband. Frankly,
either way the results are not too good.'
'What do you mean?' Mrs. Sanders asks nervously.
'Well, one of the specimens tested positive for Alzheimer's and the
other one tested positive for HIV. We can't tell which is which.'
'That's dreadful! Can you do the test again?' questioned Mrs.
'Normally we can, but Medicare will only pay for these expensive
tests one time.'
'Well, what am I supposed to do now?'
'The folks at Medicare recommend that you drop your husband off
somewhere in the middle of town. If he finds his way home, don't sleep with him.'
Posted by teckron at 12:47 PM
Monday, November 24, 2008
A letter to my bank:In view of what seems to be happening internationally with banks at
the moment, I was wondering if you could advise me.
If one of my checks is returned marked
"Insufficient Funds," how do I know whether that refers to me or to you?
Posted by teckron at 9:45 AM