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engines may be changing the way our brains remember information,
according to research released Thursday.
In a series of experiments, Columbia University psychologist Betsy
Sparrow and her colleagues produced evidence that people are more
likely to remember things they do not think they can find online
and will have a harder time remembering things they think theyll
be able to find online. In addition, people are better at remembering
where to look for information on the Internet than they are remembering
the information itself, the studies found.
Since the advent of search engines, we are reorganizing the way we remember things, Sparrow said in a news release issued with the research, which was published in the journal Science. Our brains rely on the Internet for memory in much the same way they rely on the memory of a friend, family member or co-worker. We remember less through knowing information itself than by knowing where the information can be found.
In the paper, Google Effects on Memory: Consequences of Having Information at Our Fingertips, the researchers described a set of four experiments.
In
the first, the researchers asked 46 Harvard University undergraduates
a series of true-false questions such as, An ostrichs
eye is bigger than its brain, and then showed them words
in different colors. When the words were related to the Internet,
such as Google or Yahoo, the students responded more slowly, indicating
they were already thinking about browsing the Web for the answers.
The researchers then gave 60 students 40 statements and asked
them to type the information on a computer. Those who were told
the information would be saved had a much harder time remembering
the statements than those who were told it would be erased.
In the third test, 28 Columbia students were asked a series of
trivia questions and allowed to take notes. The students who were
told the information would be saved in one of six computer folders
had a harder time remembering the information than those who were
told it would be erased.
In the last experiment, 34 Columbia undergrads were told the same
information would be saved in files with names such as facts,
data and names. The students remembered
the file names better than the information itself, the researchers
found.
The
findings show that there is no doubt that our strategies
are shifting in learning, Roddy Roediger, a psychologist
at Washington University, told Science in an accompanying article.
Why remember something if I know I can look it up again?
In some sense, with Google and other search engines, we can offload
some of our memory demands onto machines.