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Why teens are lousy at chores
(Agencies)
Updated: 2005-05-20 13:21
Finally researchers have come up with a reason other than pure laziness for
why teenagers can't shower and brush their teeth or unload the dishwasher and
wipe down the counter.
Blame it on "cognitive limitations." Their brains can't multitask as well as
those of the taskmasters.
Trust, however, that they'll grow out of it.
The part of the brain responsible for multitasking continues to develop until
late adolescence, with cells making connections even after some children are old
enough to drive, according to a new study in the May/June issue of the journal
Child Development.
The frontal cortex, which starts just behind the eyes and goes back almost to
the ears, figures out (or doesn't) what to do when a person is asked to juggle
multiple pieces of information. Imagine, then, how "make your bed and bring the
laundry down" might befuddle a 13-year-old.
In one of the study's tests, subjects between ages 9 and 20 were given
multiple pieces of information, then asked to re-order the information to
formulate an accurate response to a question. In another of several tests, they
were asked to find hidden items using a high degree of strategic thinking.
The ability to remember multiple bits of information developed through age 13
to 15, the study found. But strategic self-organized thinking, the type that
demands a high level of multi-tasking skill, continues to develop until ages 16
to 17.
The notion is not entirely new. Brain imaging has suggested as much.
"Our findings lend behavioral support to that work and indicate that the
frontal lobe is continuing to develop until late adolescence in a manner that
depends upon the complexity of the task that is being demanded," said lead
researcher Monica Luciana, an associate professor of psychology at the
University of Minnesota.
Unfortunately the study did not reveal any solution to parents at their wits'
end over the problem. But Luciana did offer this advice:
"We need to keep their cognitive limitations in mind, especially when
adolescents are confronted with demanding situations in the classroom, at home,
or in social gatherings."
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