Apparently, unpredictablenoise produces more fatigue than predictable noise, but it takes a while for this fatigue to take its toll on performance.
显然,预期之外的噪音比预期到的更容易使人疲惫,只是这种疲惫要过一会才能在人的身上体现出来。
2
Subjects reported finding the predictable and unpredictablenoise equally annoying, and all subjects performed at about the same level during the noise portion of the experiment.