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Thursday, August 27, 2009

New Measure of Human Brain Processing Speed 

via Nat Torkington
[The brain is] clocked at 60 bits/second, according to this MIT Technology Review article. Their approach eventually led to Hick's Law, one of the few laws of experimental psychology. It states that the time it takes to make a choice is linearly related to the entropy of the possible alternatives. The results from various reaction-time experiments seem to show that this is the case. Although one byproduct of this approach is that the results are intimately linked to the type of experiment used to measure the reaction time. And that makes each study peculiarly vulnerable to the idiosyncrasies of the experimental approach. Today, Fermi Moscoso del Prado Martín from the Université de Provence in France proposes a new way to study reaction times by analyzing the entropy of their distribution, rather in the manner of thermodynamics.

Topics: Brain | Information


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