Arieh Yoav, Marks Lawrence E
John B. Pierce Laboratory, New Haven, Connecticut 06519, USA.
J Exp Psychol Hum Percept Perform. 2003 Jun;29(3):523-36. doi: 10.1037/0096-1523.29.3.523.
Recalibration in loudness perception refers to an adaptation-like change in relative responsiveness to auditory signals of different sound frequencies. Listening to relatively weak tones at one frequency and stronger tones at another makes the latter appear softer. The authors showed recalibration not only in magnitude estimates of loudness but also in simple response times (RTs) and choice RTs. RTs depend on sound intensity and may serve as surrogates for loudness. Most important, the speeded classification paradigm also provided measures of errors. RTs and errors can serve jointly to distinguish changes in sensitivity from changes in response criterion. The changes in choice RT under different recalibrating conditions were not accompanied by changes in error rates predicted by the speed-accuracy tade-off. These results lend support to the hypothesis that loudness recalibration does not result from shifting decisional criteria but instead reflects a change in the underlying representation of auditory intensity.
响度感知的重新校准是指对不同声音频率的听觉信号的相对反应性发生类似适应的变化。在一个频率上听相对较弱的音调，而在另一个频率上听较强的音调，会使后者听起来更柔和。作者表明，重新校准不仅存在于响度的量级估计中，也存在于简单反应时间（RTs）和选择反应时间中。反应时间取决于声音强度，可作为响度的替代指标。最重要的是，快速分类范式还提供了错误测量。反应时间和错误可共同用于区分敏感性变化和反应标准变化。在不同的重新校准条件下，选择反应时间的变化并没有伴随着速度-准确性权衡所预测的错误率变化。这些结果支持了以下假设：响度重新校准不是由决策标准的改变引起的，而是反映了听觉强度潜在表征的变化。
