Gurevich A, Shekerdjiyski S, Mitrani L
Acta Physiol Pharmacol Bulg. 1976;2(3):29-35.
It has been shown that when man estimates the duration of separate brief time intervals(300-1,000ms), elements of a certain array of time intervals within the same range, the estimation is not affected by changes in the other elements of the array. The complex light and dark intervals are considerably underestimated. The separate estimation of two elements (light and dark interval) from the array has shown that the sum of the separate responses exceeds the estimation when the same two elements have to be estimated together as a total interval. The results could be explained by the existence of at least two "internal clocks".
研究表明，当人估算单独的短暂时间间隔（300 - 1000毫秒），即同一范围内某一时间间隔阵列中的元素时，估算不受该阵列其他元素变化的影响。复杂的明暗间隔被大大低估。对该阵列中两个元素（明间隔和暗间隔）进行单独估算表明，单独反应的总和超过了将相同的两个元素作为一个总间隔一起估算时的结果。这些结果可以通过至少存在两个“内部时钟”来解释。
