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- W4214658834 abstract "Background The study investigated the cause of varying estimates of frequency difference limens (DLs) in delayed comparison tasks involving pitch retention in auditory working memory (AWM). Using procedures adapted from the method of constant stimuli (MCS) and the single-interval adjustment matrix (SIAM), we sought to determine via 3 experiments whether the disparity in frequency DLs obtained using each procedure was due to the method of measurement (Experiment 1), the response format (Experiment 2), or performance feedback (Experiment 3). Material and methods Five adults (ages 21 to 38 years) with hearing within normal limits participated in Experiments 1 and 2, and seven adults (ages 20 to 30 years) with hearing within normal limits participated in Experiment 3. Delayed comparison tasks were used to evaluate frequency DLs under SIAM and MCS. Results Our preliminary results suggest that DL values for pitch discrimination are more influenced by response format than by the measurement procedure or performance feedback. Regardless of the method used, DL values were greater in the condition containing intervening stimuli compared to the condition lacking intervening stimuli. Conclusions Preliminary findings suggest there is consistency in the listener’s adopted criterion (i.e., judgment rationale) across the psychoacoustic methods investigated. Performance measures suggest that SIAM is as accurate as MCS, but it is noteworthy that two SIAM measurement runs using the same/different response format is more efficient than four runs with MCS. Future application of the SIAM procedure for measuring DL values might, with larger sample sizes, identify additional factors that contribute to performance and the listener’s adopted criterion, since data collection time is appreciably shorter with SIAM." @default.
- W4214658834 created "2022-03-02" @default.
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- W4214658834 date "2022-03-01" @default.
- W4214658834 modified "2023-09-26" @default.
- W4214658834 title "PRELIMINARY PSYCHOACOUSTIC INVESTIGATION OF THE SIAM PROCEDURE TO MEASURE FREQUENCY DIFFERENCE LIMENS" @default.
- W4214658834 doi "https://doi.org/10.17430/jhs.2021.11.4.7" @default.
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