P300 -- Thirteen Years Later

It was 13 years ago, almost to the day, in the spring of 1964 that P300 was first observed, and in hundreds of experiments with normal subjects, it was always found to be larger the greater the amount of uncertainty resolved.

Abstract

It was 13 years ago, almost to the day, in the spring of 1964 that we first observed P300.1 The size of the component impressed us a great deal. Over the years, we were even more impressed with its reliability. In hundreds of experiments with normal subjects, using many variations of the original design, P300 was always found to be larger the greater the amount of uncertainty resolved.