Intermodality judgments of signal duration

Ss were asked to make both inter- and intramodal comparisons of the durations of lights and tones, in a two-alternative, forced-choice situation, with signal durations between 0.5 sec. and 1.6 sec The probability of a correct judgment was higher for intra- than for intermodal comparisons and was highest for intra-auditory comparisons. For intermodal pairs of signals with durations 0.5 sec. and 0.6 sec, there was a greater than chance probability of judging the visual signal longer than the auditory.