## Encoding probability in the brain?

Written by Edmund Wascher

The so-called P300 (or P3b) is the most prominent component in the event-related potential of the EEG. Since decades it is the main psychophysiological measure of processing of task relevant information. Numerous studies in this time have proposed that the amplitude of the P300 is, among others, modulated by the probability of a stimulus. In this recent publication we demonstrate this assumption has to be questioned.

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