ASSESSING THE SINGLE INTERVAL ADJUSTMENT MATRIX YES-NO TASK

  • Daniel Shepherd
  • Michael J. Hautus
  • Miriam Stocks

Abstract

The SIAM Yes-No task is an efficient procedure for estimating absolute thresholds, thougharguably requires further assessment prior to its adoption into mainstream psychophysicalresearch. We report two experiments, undertaken on the auditory modality designed to assessthe functionality and efficiency of the SIAM procedure. First, an audiometric paradigm wasemployed in which absolute thresholds were estimated for both left and right ears at sevenfrequencies. Second, a modified version of the SIAM, the SIAM-Rapid, was compared to theorthodox SIAM procedure using 1000-Hz tones of 100 ms duration. Both experimentsdemonstrate the efficiency and precision of the SIAM approach.
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