Blommaert F J, Roufs J A
Biol Cybern. 1987;56(5-6):329-44. doi: 10.1007/BF00319513.
As was shown before (Roufs and Blommaert 1981), temporal impulse responses and step responses can be obtained psychophysically using a drift-correcting perturbation technique. In this paper, experimentally determined impulse responses are given for eight subjects using different experimental conditions, i.e. a 1 deg stimulus field at background luminances of 1200 Td and 100 Td, and a point source superimposed on an extended background of the same luminances, which is a possibility to separate transient and sustained processing. For a large class of stimuli, predictions of threshold curves and latency of different time functions are calculated on the basis of these measured impulse responses. Predictions are tested against experimental data. It will be shown that a simple model, only consisting of a linear filter followed by a noisy peak detector, suffices for a fair quantitative description of the available data.
如前所示（鲁夫斯和布洛马尔特，1981年），可以使用漂移校正微扰技术通过心理物理学方法获得时间脉冲响应和阶跃响应。在本文中，给出了八名受试者在不同实验条件下通过实验确定的脉冲响应，即背景亮度为1200Td和100Td时的1度刺激场，以及叠加在相同亮度的扩展背景上的点光源，这是分离瞬态和持续处理的一种可能性。对于一大类刺激，基于这些测量的脉冲响应计算不同时间函数的阈值曲线和潜伏期预测值。将预测值与实验数据进行对比测试。结果表明，一个仅由线性滤波器后跟噪声峰值检测器组成的简单模型，就足以对现有数据进行合理的定量描述。
