Memory for the pitch of a tone

Observers attempted to detect the presence of a pitch dirference between two successive tones. The percentage of correct judgments was equivalent for tones separated by 95, 4.5, and 8.9 sec. There was a general increase in reports of a pitch difference with increased intertone interval, which is interpreted as arising from hypothesized shifts in the neural locus of the first stimulus during the intertone interval.