... humans are the P300 positivity and N200 negativity, appearing 300 ms and 200 ms post-stimulus, respectively. With the rapid proliferation of high-density EEG methods, and interdisciplinary interest ... reproducibility, simplicity, and applicability across sensory modalities. In these experiments, the N200 is typically evoked before the motor response, suggesting its link to the cognitive processes ... peak-areas decrease in the older population, suggesting a shortening of the sensory auditory memory trace with increasing age [19]. The same phenomenon occurs in the very young, indicating the...