鸽子对视觉强度差异的检测。
The detection of visual intensity differences by pigeons.
作者信息
Hodos W, Bonbright J C
出版信息
J Exp Anal Behav. 1972 Nov;18(3):471-9. doi: 10.1901/jeab.1972.18-471.
Abstract
Pigeons were trained in a conditional discrimination procedure to discriminate between visual stimuli that varied in intensity. The magnitude of the intensity difference ranged from 0.80 to 0.05 logarithmic units. Psychometric functions were calculated from the data and the mean difference threshold for the 11 subjects was approximately 0.12 logarithmic units. A signal-detection analysis of the data suggested that stimuli that were below the calculated threshold were detectible to the subjects.
摘要
鸽子在条件辨别程序中接受训练，以区分强度不同的视觉刺激。强度差异的幅度范围为0.80至0.05对数单位。根据数据计算出心理测量函数，11名受试者的平均差异阈值约为0.12对数单位。对数据的信号检测分析表明，低于计算阈值的刺激对受试者来说是可检测到的。
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