Caffeine
Official Audio Prompt
A lot of people just don't feel quite human without that morning cup of coffee. Now a study finds that the [blank] sense of well-being that caffeine can cause is reflected in our [blank] of words. Specifically, caffeine increases the ability to recognize words [blank] with positive thoughts but doesn't provide the same boost for words with negative or even [blank] associations. The research is in the journal PLoS One. Scientists assigned 66 [blank] to one of two groups. Half got a 200-milligram caffeine tablet, a dose equal to almost three cups of coffee.
Sample Answer & Audio Transcript
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