And some days it seems like everyone with some slack time and a scanner is lining up to take their shot.

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So the problem is how to facilitate this, given that it is not practical to put them in a scanner every time someone wants to ask them a question.

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In the second part of the study, participants were again asked to estimate the probability of each event happening to them, but this time they were not in the fMRI scanner.

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Scanner is a unique product for the time being.

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It also currently needs to be wired to a computer to work, although NZIR says the scanner will be fully wireless by the time its ready to hit the market two years from now.

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Still, some predict that by 2009, the ability to swipe everything from a pair of pants to a bar of soap under a scanner will mean that shoppers will spend less time in a cash register line.

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