Asymmetrical discrimination of narrow-band stimuli.
A three-interval, forced-choice procedure that obtained complete psychometric functions was used to study frequency discrimination for 13-item continua of impulse-generated, narrow-band, buzz-like, steady-state sounds. For all subjects and durations, discrimination relative to the highest center frequency (1060 Hz) stimuli was better than discrimination relative to the lowest center frequency (940 Hz). This result is not in consonance with traditional reports of pure tone frequency discrimination and is not readily explained. However, additional experiments with similar stimuli replicated these findings.
Elliott
L L
LL
Northwestern University, Evanston, Illinois 60208.
Hammer
M A
MA
Carrell
T
T
D000328:Adult; D001288:Attention; D004292:Dominance, Cerebral; D006801:Humans; D008144:Loudness Perception; D010897:Pitch Discrimination; D011571:Psychoacoustics; D011930:Reaction Time; D012016:Reference Values