Fudin R, Masterson C C
Percept Mot Skills. 1976 Feb;42(1):223-6. doi: 10.2466/pms.1976.42.1.223.
Prevention of contamination by eye movements is on methodological requirement in the choice of an exposure time in experiments on the covert scanning of stimuli, tachistoscopically exposed laterally. The use of measures of eye movement latency to set upper limits for exposure intervals seems questionable because latency does not index the total time (minimally, 200 msec.) required to obtain information through an eye movement. The foregoing requirement, however, is only one consideration in selection of an exposure time. Since covert encoding processes can only function while the stimulus is on and during the after-stimulation, duration of exposure delimits the operating time of these processes. Choice of an interval, therefore, should establish the setting required to study those aspects of covert scanning of experimental interest.
在对侧向速示曝光刺激进行隐蔽扫描的实验中,防止眼球运动造成污染是选择曝光时间的一项方法学要求。利用眼球运动潜伏期的测量方法来设定曝光间隔的上限似乎存在问题,因为潜伏期并不能反映通过眼球运动获取信息所需的总时间(至少200毫秒)。然而,上述要求只是选择曝光时间时的一个考虑因素。由于隐蔽编码过程只能在刺激呈现期间和刺激后起作用,曝光持续时间限制了这些过程的运行时间。因此,选择一个间隔应能确定研究实验中感兴趣的隐蔽扫描方面所需的条件。