I've read the article "On the Existence of Quantum Wave Function and Quantum Interference
Effects in Mental States: An Experimental Confirmation during Perception and
Cognition in Humans" of Elio Conte, Andrei Yuri Khrennikov, Orlando Todarello, Antonio
Federici, Joseph P. Zbilut at http://arxiv.org/abs/0807.4547 .
There are described two experiments: one about perception of images, and another about the conjunction fallacy. The results about this last argument are in accordance with the ones of my article "The conjunction fallacy and interference effects", http://xxx.lanl.gov/pdf/0708.3948.