Would be interesting to look from this point of view also at derisive language in scientific papers and discussion, for example by David Kenneth Johnson:
On Nature online a news article reports about research by Cerf, M. et al. Nature 467, 1104-1108 (2010) which shows how humans can use thinking to alter perception of competing visual images
In the news Dr. Moran Cerf gives an interesting interpretation of his EXPERIMENTS:
"The environment offers some reality," he says, "but your own brain can shape it and override it with its internal deliberations."
The THEORY for this has been developed in the last 40 years within the theory of knowing called Radical Constructivism http://www.univie.ac.at/constructivism/