HEARST E, KORESKO M B, POPPEN R
J Exp Anal Behav. 1964 Sep;7(5):369-80. doi: 10.1901/jeab.1964.7-369.
Generalization gradients along a line-tilt continuum were obtained from groups of pigeons that had been trained to peck a key on different schedules of reinforcement. In Exp. I, gradients following training on a differential-reinforcement-of-low-rate (DRL) schedule proved to be much flatter than gradients following the usual 1-min variable interval (VI) training. In Exp. II, the value of the VI schedule itself was parametrically studied; Ss trained on long VI schedules (e.g., 4-min) produced much flatter gradients than Ss trained on short VI schedules (30-sec; 1-min). The results were interpreted mainly in terms of the relative control exerted by internal, proprioceptive cues on the different reinforcement schedules. Several implications of the results for other problems in the field of stimulus generalization are discussed.
从经过训练按不同强化程序啄击按键的鸽子群体中，获取了沿直线倾斜连续体的泛化梯度。在实验一中，按低速率差异强化（DRL）程序训练后的梯度，被证明比通常的1分钟可变间隔（VI）训练后的梯度要平缓得多。在实验二中，对VI程序本身的值进行了参数研究；在长VI程序（如4分钟）上训练的被试产生的梯度，比在短VI程序（30秒；1分钟）上训练的被试产生的梯度平缓得多。结果主要根据内部本体感受线索对不同强化程序施加的相对控制来解释。讨论了这些结果对刺激泛化领域其他问题的若干影响。
