Ong J, Harman G A
Percept Mot Skills. 1979 Apr;48(2):619-24. doi: 10.2466/pms.1979.48.2.619.
Three types of eye movements, saccadic, reading, and pursuit, were recorded from 6 college subjects, two in each by the electrooculographic and photoelectric methods simultaneously. A deviation index (DI), which is the standard deviation divided by the mean, was devised to compare the precision of recording amplitude deflection, and a proportion index (PI), which is ml divided by M2, was devised to compare the mean amplitude indirectly between these two methods. Results showed that the proportion indexes of three types of eye movements were comparable, and the mean index of 0.54 indicated that the amplification in the electrooculographic method was about half as much as that in the photoelectric. The mean deviation index of 0.132 vs 0.135 was, again, comparable, meaning that these two methods of recording amplitude deflections are of about the same degree of magnitude and precision. Certain qualitative differences regarding the amplitude and velocity peak deflection between these two methods were also noted.
从6名大学生受试者身上记录了三种类型的眼球运动，即扫视、阅读和追踪运动，每种类型有两名受试者，同时通过眼电图法和光电法进行记录。设计了一个偏差指数（DI），即标准差除以平均值，用于比较记录幅度偏转的精度；还设计了一个比例指数（PI），即ml除以M2，用于间接比较这两种方法之间的平均幅度。结果表明，三种眼球运动的比例指数具有可比性，平均指数为0.54，表明眼电图法的放大倍数约为光电法的一半。平均偏差指数分别为0.132和0.135，同样具有可比性，这意味着这两种记录幅度偏转的方法在量级和精度上大致相同。还注意到这两种方法在幅度和速度峰值偏转方面存在某些定性差异。
