Temporal bisection with trial referents
Temporal bisection with trial referents
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DOI：
10.3758/bf03194418
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发表时间：
2001-04-01
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影响因子：
--
通讯作者：
Gerhardt, K
中科院分区：
文献类型：
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作者：
Allan, LG;Gerhardt, K
在时间二分中，受试者需要比较探测持续时间与两个参考持续时间的相似性。报告了两项针对人类受试者的平分实验，其中比较了三种参考条件下的表现。在无参照物和固定参照物这两种情况下，参照物对在整个会话期间保持不变，并且在会话之间变化。在无参考条件下，参考对象的样本在一组试验开始时提供，但不在探测试验中提供。相反，在固定参照物条件下，参照物对出现在每次探测试验中。在第三种参考条件（流动参考）中，在每次探测试验中也会出现参考对，但该对的值在一次会话期间而不是会话之间发生变化。伪逻辑模型（PLM；Killeen，Fetterman，＆Bite，1997）提供了对所有参考条件的数据的出色解释，并表明（1）标量变异性位于探针的感知中并且与二分任务的结构无关，（2）参考对象的作用是设置标准，（3）探针与标准而不是与参考对象进行比较，以及（4）即使在以下情况下也会发生探针与标准的比较试验参照物：可用。
In temporal bisection, the subject is required to compare the similarity of a probe duration with two referent durations. Two bisection experiments with human subjects are reported in which performance under three referent conditions was compared. In two of the conditions, no-referent and fixed-referent, the referent pair was constant throughout the session and was varied between sessions. In the no-referent condition, samples of the referents were presented at the beginning of a block of trials, but not on the probe trials. In contrast, in the fixed-referent condition, the referent pair was presented on each probe trial. In the third referent condition, roving-referent, the referent pair was also presented on each probe trial, but the values of the pair varied during a session rather than between sessions. The pseudo-logistic Model (PLM; Killeen, Fetterman, & Bite, 1997) provided an excellent account of the data front all referent conditions and indicated that (1) the scalar variability was located in the perception of the probe and was independent of the structure of the bisection task, (2) the role of the referents was to set the criterion, (3) the probe was compared with the criterion rather than with the referents, and (4) the comparison of the probe with the criterion occurred even when trial referents: were available.