There are many studies about representation

of visual impressions, how images are

processed by the brain. But only for metaphors:

http://www.eurekalert.org/pub_releases/2005-05/uoc--gmu052005.php

http://www.scientificamerican.com/article.cfm?id=brain-region-linked-to-me

http://www.eurekalert.org/pub_releases/2012-02/eu-hma020312.php

http://www.newscientist.com/article/dn21780-brain-sees-metaphor-and-simile-differently.html

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0016782

http://phys.org/news/2012-06-metaphors.html

Regards,

Joachim

Thank you very much!

Istvan