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The researchers looked at the
of 40 participants. Twenty-four of these performed
tasks. These included looking at a computer screen and matching
letters. The other 16 people did a similar, but easier
. Both teams worked for
hours, and had
breaks. The researchers scanned the
of the participants. The group with the more
task had higher levels of glutamate in their brain. Study
Antonius Wiehler said: "It would be great to find out more about how glutamate
are restored."
