Tuesday, March 03, 2009

Spooky action at a distance

Human eye could detect spooky action at a distance

It's almost a year since Nicolas Gisin and colleagues at the University of Geneva announced that they had calculated that a human eye ought to be able to detect entangled photons. "Entanglement in principle could be seen," they concluded.

That's extraordinary because it would mean that the humans involved in such an experiment would become entangled themselves, if only for an instant.

Scientists Model Words as Entangled Quantum States in our Minds

Research has shown that words are stored in our memories not as isolated entities but as part of a network of related words. This explains why seeing or hearing a word activates words related to it through prior experiences. In trying to understand these connections, scientists visualize a map of links among words called the mental lexicon that shows how words in a vocabulary are interconnected through other words.

However, it's not clear just how this word association network works. For instance, does word association spread like a wave through a fixed network, weakening with conceptual distance, as suggested by the "Spreading Activation" model? Or does a word activate every other associated word simultaneously, as suggested in a model called "Spooky Activation at a Distance"?

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