Iwasaki S
Percept Mot Skills. 1983 Jun;56(3):879-85. doi: 10.2466/pms.1983.56.3.879.
With 3 types of tasks RTs at 7 retinal locations were measured. These tasks were called CRT in which the subjects responded with one of the two keys according to whether the presented digits were odd or even, simple-but-watch condition in which they tried to see clearly the presented digit and then respond in the simple RT manner, and simple-and-quick condition in which they simply responded to the onset of the stimuli. As may be expected, in the latter condition the subjects produced retinal-location function curve which showed only a little degradation at the peripheral positions, while in the CRT condition they responded to the peripheral stimuli much more slowly than to the central ones. The RTs of the simple-but-watch condition fell in between; most subjects showed the responses much like the ones in the simple-and-quick condition, but some of them produced a retinal location function identical in shape (although reduced by approximately 250 msec.) to the one obtained in the CRT condition. This was interpreted to be a failure (for most of the subjects) to direct attention to those parts of the stimulus properties that conveyed information on pattern. These findings gave warning as to the uncritical adoption of a simple-RT paradigm to measure iconic duration.
在7个视网膜位置测量了3种任务的反应时间（RTs）。这些任务分别称为奇偶判断反应任务（CRT），即受试者根据呈现的数字是奇数还是偶数用两个按键之一做出反应；简单注视条件任务，即他们试图看清呈现的数字，然后以简单反应时间的方式做出反应；以及简单快速条件任务，即他们仅对刺激的开始做出反应。正如预期的那样，在后一种条件下，受试者产生的视网膜位置功能曲线在外围位置仅显示出轻微的退化，而在奇偶判断反应任务条件下，他们对周边刺激的反应比对中央刺激的反应要慢得多。简单注视条件任务的反应时间介于两者之间；大多数受试者的反应很像简单快速条件任务中的反应，但其中一些人的视网膜位置功能曲线形状相同（尽管减少了约250毫秒），与在奇偶判断反应任务条件下获得的曲线相同。这被解释为（对于大多数受试者来说）未能将注意力指向传达图案信息的刺激属性的那些部分。这些发现警示人们不要不加批判地采用简单反应时间范式来测量图像持续时间。
