Nizami Lance
Boys Town National Research Hospital, Omaha, Nebraska, USA.
Percept Psychophys. 2006 Oct;68(7):1107-12. doi: 10.3758/bf03193713.
Intensity-difference limens (DLs) were obtained for tones of 6.5 kHz over levels of 30-90 dB SPL. The tones had Gaussian-shaped envelopes whose duration was expressed as equivalent rectangular duration D, that of a rectangle enclosing the same area as the envelope. D ranged from 0.314 to 30 msec. DL behaviors such as the "severe departure from Weber's law," the "midlevel hump," or the "midduration hump"--that is, a rise in the DL over a range of short durations--were identified using trend analysis. The DL versus level followed a "severe departure" that increased as duration dropped to D approximately 1-2 msec. That midlevel hump then fell with further shortening of the tone pip, producing a mid-duration hump. Materials for this article may be accessed through the Psychonomic Society's Norms, Stimuli, and Data archive, at www.psychonomic.org/archive.
在30 - 90 dB声压级范围内，获得了6.5 kHz纯音的强度差异阈限（DLs）。这些纯音具有高斯形状的包络，其持续时间用等效矩形持续时间D表示，即与包络面积相同的矩形的持续时间。D的范围为0.314至30毫秒。使用趋势分析确定了诸如“严重偏离韦伯定律”、“中等强度峰值”或“中等持续时间峰值”等DL行为，即在一系列短持续时间内DL的上升。随着持续时间降至约1 - 2毫秒，DL与声压级的关系呈现出“严重偏离”且随持续时间下降而增加的趋势。然后，随着音脉冲进一步缩短，中等强度峰值下降，产生中等持续时间峰值。本文的材料可通过心理onomic学会的规范、刺激和数据存档网站（www.psychonomic.org/archive）获取。
