SAME-DIFFERENT COMPARISON OF DURATION
SAME-DIFFERENT COMPARISON OF DURATION
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DOI：
10.3758/bf03205047
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发表时间：
1987-11-01
期刊：
影响因子：
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通讯作者：
FETTERMAN, JG
中科院分区：
文献类型：
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作者：
FETTERMAN, JG
鸽子接受了一项任务的训练，在这项任务中，持续时间为t1的红光之后是持续时间为t2的绿光，然后根据刺激的持续时间是相同还是不同，对不同按键的反应得到加强。在实验1中，持续时间对包括1、2、4和8秒的所有组合。在实验2中，不同持续时间对只包括t1、bb0和t2的组合，此外，2名接受过较长时间训练的受试者被转移到相同的不同任务中。3名受试者中有2名在实验1中学习了这项任务，分析表明，选择是基于特定的实例，而不是基于时间上的相同-不同规则。所有5只鸟都在实验2中获得了辨别能力，在实验2中，选择似乎是由相对规则和绝对规则的组合控制的。从“更小-更大”到“相同-不同”的区分转移后，准确率下降，但在第一次转移时，表现高于机会。然而，在这两个实验中，准确度都低于在较早的研究中发现的时间长短比较。这些研究结果与先前的研究有关，这些研究对涉及非时间刺激的不同任务的持续时间和相同的任务进行了较大或较小的比较。
Pigeons were trained on a task in which a red light of duration t1 was followed by a green light of duration t2 and then responses to different keys were reinforced according to whether the durations of the stimuli were the same or different. For Experiment 1, duration pairs consisted of all combinations of 1, 2, 4, and 8 sec. In Experiment 2, different-duration pairs included only combinations with t1 > t2 and, in addition, 2 subjects with extended training involving lesser-greater duration comparisons were transferred to the same-different task. Two of 3 subjects learned the task in Experiment 1 and analyses suggested that choices were based on specific instances, not on a temporal same-different rule. All 5 birds acquired the discrimination in Experiment 2, where it appeared that choices were controlled by a combination of relative and absolute rules. Accuracy decreased following transfer from a lesser-greater to a same-different discrimination, but performance was above chance on the first transfer session. In both experiments, however, accuracy was below that found in earlier work with lesser-greater comparisons of duration. These findings are discussed in relation to prior research with lesser-greater comparisons of duration and same-different tasks involving nontemporal stimuli.