Oblacheva N K
Zh Vyssh Nerv Deiat Im I P Pavlova. 1977 Nov-Dec;27(6):1188-92.
The process of formation and the structure of orienting reaction (OR) to rhythmic photic stimuli of growing intensity (beginning with brightnesses near the visibility threshold) was studied in alert non-immobilized rabbits. Motor (movements of the fore and hind paws and the ears) and the vegetative (respiratory) OR components were recorded. No dependence of the emergence of different type reactions on the intensity of the stimulus was disclosed. All the studied kinds of the animal's behavioral responses begin to appear for the first time in a very narrow range of brightness. OR to presented stimuli is not completely extinguished. The process of OR extinction is of a wave-like nature. It is assumed that the structure of the rabbit OR to photic stimuli of low intensities and short durations is determined not so much by physical parameters of the stimulus, as by the animal's condition.
在警觉且未固定的兔子身上，研究了对强度不断增加的节律性光刺激（从接近可见度阈值的亮度开始）的定向反应（OR）的形成过程和结构。记录了运动性（前爪、后爪和耳朵的运动）和植物性（呼吸）OR成分。未发现不同类型反应的出现对刺激强度有依赖性。所有研究的动物行为反应类型首次出现在非常窄的亮度范围内。对呈现刺激的OR并未完全消失。OR消失过程呈波浪状。据推测，兔子对低强度和短持续时间光刺激的OR结构，与其说是由刺激的物理参数决定，不如说是由动物的状态决定。
