title: A further test of the linearity of temporal summation in forward masking.
abstract: An experiment tested the hypothesis that the masking effects of two nonoverlapping forward maskers are summed linearly over time. First, the levels of individual noise maskers required to mask a brief 4-kHz signal presented at 10-, 20-, 30-, or 40-dB sensation level (SL) were found. The hypothesis predicts that a combination of the first masker presented at the level required to mask the 10-dB SL signal and the second masker presented at the level required to mask the 20-dB SL signal, should produce the same amount of masking as the converse situation (i.e., the first masker presented at the level required to mask the 20-dB SL signal and the second masker presented at the level required to mask the 10-dB SL signal), and similarly for the 30- and 40-dB SL signals. The results were consistent with the predictions.
authors: Department of Psychology, Lancaster University, Lancaster, LA1 4YF, United Kingdom. c.plack@lancaster.ac.uk
authors: Christopher J
authors: CJ
authors: Plack
authors: Samuele
authors: S
authors: Carcagno
authors: Andrew J
authors: AJ
authors: Oxenham
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D000465:Algorithms; D001288:Attention; D001309:Auditory Threshold; D006801:Humans; D016014:Linear Models; D008144:Loudness Perception; D017711:Nonlinear Dynamics; D010470:Perceptual Masking; D010898:Pitch Perception; D011571:Psychoacoustics; D013018:Sound Spectrography