NUMBER OR DURATION DISCRIMINATION FOR AUDITORY PULSE TRAINS

Employed pulse rates from 10-2000 pulses/sec, where perceived number does not follow the presented number. Over these rates, the relative discrimination of number was constant at about 10% and was relatively independent of the internal structure of the pulse trains. Since the perceived number of pulses is proportional to the number of elapsed one-tenth sec. periods, or momemts, and since number discrimination is possible within 1 such elapsed period, it is concluded that perceived duration rather than perceived number was the basis of discrimination in the present tests. (19 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1968 American Psychological Association.