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延迟样本匹配中的泛化梯度与刺激控制

Generalization gradients and stimulus control in delayed matching-to-sample.

作者信息

Sidman M

出版信息

J Exp Anal Behav. 1969 Sep;12(5):745-57. doi: 10.1901/jeab.1969.12-745.

Abstract

Neurological patients were subjects in delayed visual matching-to-sample. The sample and choice stimuli were ellipses of varying size. By measuring the difference in size between the sample on a given trial and the ellipse the subject chose on that trial, gradients of differences between samples and choice stimuli could be plotted. These difference gradients broadened with increasing delays. Sharp gradients were controlled by the samples. Flat gradients were controlled by features of the choice display, independently of the samples. Intermediate gradients reflected combined control by the samples and by the choice displays.

摘要

神经科患者是延迟视觉样本匹配任务的受试者。样本刺激和选择刺激是不同大小的椭圆。通过测量给定试验中的样本与受试者在该试验中选择的椭圆之间的大小差异,可以绘制样本与选择刺激之间的差异梯度。随着延迟时间的增加,这些差异梯度会变宽。尖锐的梯度受样本控制。平坦的梯度受选择显示的特征控制,与样本无关。中间梯度反映了样本和选择显示的联合控制。

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