Puleo J S, Pastore R E
J Acoust Soc Am. 1980 Mar;67(3):947-51. doi: 10.1121/1.383973.
The role of stimulus uncertainty in backward masking was investigated using a Monaural Detection with Contralateral Cueing (MDCC) paradigm. Cues temporally synchronous with and phase locked to the signal (20-ms segment of 500-Hz sinusoid) reduced backward masking, with the amount of reduction being independent of the phase relationship between the cue and the signal. Band-limited noise cues synchronous with the signal also reduced the amount of backward masking, with cue bandwidth having only a small differential effect on the amount of reduction. The important parameter of the cue in reducing backward masking was the temporal synchrony between the cue and the signal; a silent gap in a broadband noise served as an effective cue. These results confirm that, unlike simultaneous masking, backward masking involves a high degree of temporal uncertainty.
使用对侧提示单耳检测（MDCC）范式研究了刺激不确定性在反向掩蔽中的作用。与信号（500 Hz正弦波的20 ms片段）在时间上同步且锁相的提示减少了反向掩蔽，减少量与提示和信号之间的相位关系无关。与信号同步的带限噪声提示也减少了反向掩蔽量，提示带宽对减少量只有很小的差异影响。提示在减少反向掩蔽中的重要参数是提示与信号之间的时间同步；宽带噪声中的静音间隙可作为有效提示。这些结果证实，与同时掩蔽不同，反向掩蔽涉及高度的时间不确定性。
