SOME TEMPORAL PARAMETERS IN VIBROTACTILE FORWARD MASKING

Tactile thresholds for detecting a 250-Hz signal of variable duration presented at variable times after the termination of a 250-Hz 700-ms m asking stimulus were measured. It was found that the threshold shift r esulting from the presentation of the masking stimulus declined as fun ctions of the duration of the signal and the duration of the time inte rval between the masking stimulus and signal. Both of these effects we re found to be attributable to an increase in the time interval betwee n the offset of the masking stimulus and the offset of the Signal. (C) 1995 Acoustical Society of America.