ABSTRACT

Human subjects were asked to compare the frequency patterns defined by two sequences of tones. When each tonal sequence had a unique timing pattern, variability in the tone onset times or tone durations had a deleterious effect on discrimination performance. Two sequence comparison algorithms were evaluated on the same stimulus sequences heard by the human subjects. The overall pattern of performance for the two computational algorithms was similar to that of the human subjects. However, the subject responses did not correlate highly with the algorithm measures over experimental trials. This study demonstrates that sequence comparison algorithms may be useful in modelling how humans process sequential stimuli.