Yonovitz A, Thompson C L, Lozar J
J Speech Hear Res. 1979 Jun;22(2):403-11. doi: 10.1044/jshr.2202406.
Two studies were devised to determine if objective quantification of the masking level difference is possible using the auditory evoked response (AER). In the first study, click stimuli were presented under three conditions: both the stimulus and masker in phase (SoNo); stimulus in phase, masker antiphasic (SoN pi); and stimulus antiphasic with masker in phase (S pi No). In the second study 1000 Hz puretone stimuli were presented under SoNo and S pi No phasic conditions. AER's were obtained at various intensity levels for each condition. The AER demonstrated differences in N1-P2 amplitudes evoked by the homophasic and antiphasic conditions for threshold and suprathreshold levels.
设计了两项研究，以确定是否可以使用听觉诱发电位（AER）对掩蔽级差进行客观量化。在第一项研究中，在三种条件下呈现点击刺激：刺激和掩蔽器同相（SoNo）；刺激同相，掩蔽器反相（SoN pi）；以及刺激反相与掩蔽器同相（S pi No）。在第二项研究中，在SoNo和S pi No相位条件下呈现1000Hz纯音刺激。针对每种条件，在不同强度水平下获得AER。AER显示，在阈值和阈上水平下，同相和反相条件诱发的N1-P2振幅存在差异。
