摘要
探讨并实现了一种阈限测量的算法——强迫选择法和变形阶梯法结合的算法。首先回顾了强迫选择法和变形阶梯法在阈限测量发展中的地位,然后分别说明这两种算法的原理,最后通过采用这种结合算法的人体电流感觉测量系统进行实验,说明了两种方法的结合是一种较好的阈限测量算法。实验结果表明,采用这种算法来实现阈限的自动测量,快速,稳定,具有良好的可重复性。
A new algorithm for evaluating human sensory threshold is discussed, which combines two methods of forced choice and transformed rule up down ( UDTR) . This paper reviews the development history and also describes the principles of both the forced choice method and UDTR. Experiments adopting the new algorithm for human current perception threshold testing are con-
ducted. The results and analysis of these experiments illustrate that combination of these two methods is a better algorithm in speed, stableness and repeatability for automatically evaluating threshold.
出处
《应用心理学》
CSSCI
2004年第2期29-32,共4页
Chinese Journal of Applied Psychology
基金
973重大基础研究前期研究专项(2002CCA01800)
