Yes a good article, indeed.
I was discussing that article with our sound engineer the other day.
he talked about how there was a higher rate of brain activity while listening to mp3, compared to the same piece of music in uncompressed format.
most likely the senses are searching for clues of 3d environment which can't be found in mp3's due to reduction of information.
I remember also reading that article - but where to find it when you need it...