Evtikhin D V, Latanov A V, Sokolov E N
Zh Vyssh Nerv Deiat Im I P Pavlova. 1995 Sep-Oct;45(5):964-75.
Brightness discrimination of black-white (in the range of 0.0082-0.214 W/m2; CIE chromaticity coordinates X = 0.340, Y = 0.354) and red (in the range of 0.0035-0.106 W/m2; CIE chromaticity coordinates X = 0.641, Y = 0.342) stimuli was studied during using choice conditioning paradigm in two carps. Confusion matrices for black-white and red stimuli separately were constructed from probabilities of instrumental responses (catching of a bead) to conditioned and differential stimuli in sequential six series in which one of ten intensities used in the experiment served as a conditioned stimulus. Confusion matrices were transformed into correlation matrices between the vectors which corresponded to the applied stimuli. Principal component analysis revealed two-dimensional circular structure of carp's brightness perceptual space both for achromatic and for red stimuli. This space was principally similar to that in humans. Two eigenvectors which constitute two-dimensional Euclidean space of brightness may be interpreted as bright and dark neuronal channels.
在两条鲤鱼身上采用选择条件反射范式，研究了它们对黑白（亮度范围为0.0082 - 0.214 W/m²；CIE色度坐标X = 0.340，Y = 0.354）和红色（亮度范围为0.0035 - 0.106 W/m²；CIE色度坐标X = 0.641，Y = 0.342）刺激的亮度辨别能力。分别根据在连续六个系列中对条件刺激和差异刺激的工具性反应（捕捉珠子）概率，构建了黑白刺激和红色刺激各自的混淆矩阵，其中实验中使用的十种强度之一作为条件刺激。将混淆矩阵转换为与所施加刺激相对应的向量之间的相关矩阵。主成分分析揭示了鲤鱼对于消色差刺激和红色刺激的亮度感知空间的二维圆形结构。这个空间与人类的亮度感知空间基本相似。构成亮度二维欧几里得空间的两个特征向量可被解释为明和暗的神经通道。
