article_snippet: Each has tests including a brain scan, while changes to Each mood, memories and emotions are monitored.
article_snippet: Users also find it difficult to concentrate.
article_snippet: The next part of the experiment was to undergo a full MRI scan of the brain.
article_snippet: So,spending an hour in the scanner didn't bother me at all.
article_snippet: During the scan I was asked to do a lengthy series of observation and memory tests.
article_snippet: In the MRI scanner, the tests seemed no more difficult than before, but I had one hell of a job staying awake.
article_snippet: My memory was appalling again, but I don't think my concentration was badly affected.