Figure 1
From: A critical experimental study of the classical tactile threshold theory
Example of CESR which cannot be explained by classical theory. (a)Sample of stimulus with noise in the whole attention interval. (b)Sample of stimulus with noise synchronized in time with the stimulus. The dotted line represents the threshold. In both cases the noise helps the stimulus to surpass the threshold, so that according to classical threshold theory both cases are equally detected. However, experimental results [14] show that detection is better in case b).