WEISSMAN A
J Exp Anal Behav. 1963 Apr;6(2):265-8. doi: 10.1901/jeab.1963.6-265.
Four pigeons were trained on a multiple reinforcement schedule consisting of two limited-hold schedules, one in which a discriminative stimulus (S(D)) accompanied the periodic reinforcement contingency, and one in which the discriminative stimulus was omitted. The duration of the limited-hold in each component of the multiple schedule was reduced in parallel steps. It was shown that behavioral differences between the two schedules were attenuated by this manipulation of temporal parameters. When S(D) was reduced in duration, three out of four pigeons responded with extremely high S(Delta) rates, despite the regular pairing of S(Delta) with the reinforcement contingency. These high rates qualitatively resembled the rapid rates emitted on the analogous no-S(D) component.
四只鸽子接受了一种多重强化程序的训练，该程序由两个有限持时程序组成，一个程序中辨别性刺激（S(D)）伴随着周期性强化条件，另一个程序中辨别性刺激被省略。多重程序各组成部分的有限持时持续时间以平行步骤减少。结果表明，通过这种时间参数的操纵，两个程序之间的行为差异被减弱。当S(D)的持续时间缩短时，四只鸽子中有三只以极高的S(Delta)速率做出反应，尽管S(Delta)与强化条件有规律地配对。这些高反应速率在性质上类似于在类似的无S(D)组成部分上发出的快速反应速率。
