  I will show how an objective definition of the concept of information and the
consideration of recent results about information-processing in the human brain
help clarify some fundamental and often counter-intuitive aspects of quantum
mechanics. In particular, I will discuss entanglement, teleportation,
non-interaction measurements and decoherence in the light of the fact that
pragmatic information, the one our brain handles, can only be defined in the
classical macroscopic domain; it does not operate in the quantum domain. This
justifies viewing quantum mechanics as a discipline dealing with mathematical
models and procedures aimed exclusively at predicting possible macroscopic
changes and their likelihood that a given quantum system may cause when it
interacts with its environment, including man-made devices such as measurement
instruments. I will discuss the informational and neurobiological reasons of
why counter-intuitive aspects arise whenever we attempt to construct mental
images of the "inner workings" of a quantum system by forcing the concepts of
classical information and time into the quantum domain; in this context I will
examine the role of pragmatic information as a discriminator in the
quantum-to-classical transition.
