ext_211332 ([identity profile] liveonearth.livejournal.com) wrote in [personal profile] liveonearth 2014-04-22 03:07 pm (UTC)

You are correct, the study does not confirm causality, only association. I had a similar thought, and also the question: what does an enlarged nucleus accumbens mean, functionally?

FYI: I stuck the text of the article behind the "text" cut.

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