Wasserman E A, Gagliardi J L, Cook B R, Kirkpatrick-Steger K, Astley S L, Biederman I
Department of Psychology, University of Iowa, Iowa City 52242-1407, USA.
J Exp Psychol Anim Behav Process. 1996 Apr;22(2):205-21. doi: 10.1037//0097-7403.22.2.205.
Four experiments used a four-choice discrimination learning paradigm to explore the pigeon's recognition of line drawings of four objects (an airplane, a chair, a desk lamp, and a flashlight) that were rotated in depth. The pigeons reliably generalized discriminative responding to pictorial stimuli over all untrained depth rotations, despite the bird's having been trained at only a single depth orientation. These generalization gradients closely resembled those found in prior research that used other stimulus dimensions. Increasing the number of different vantage points in the training set from one to three broadened the range of generalized testing performance, with wider spacing of the training orientations more effectively broadening generalized responding. Template and geon theories of visual recognition are applied to these empirical results.
四项实验采用四选辨别学习范式，以探究鸽子对四个在深度上旋转的物体（一架飞机、一把椅子、一盏台灯和一个手电筒）的线条图的识别能力。尽管鸽子仅在单一深度方向上接受训练，但它们能够可靠地将辨别性反应推广到所有未训练的深度旋转的图像刺激上。这些泛化梯度与先前使用其他刺激维度的研究中发现的梯度非常相似。将训练集中不同视角的数量从一个增加到三个，拓宽了泛化测试表现的范围，训练方向间距越宽，越能有效地拓宽泛化反应。视觉识别的模板理论和geon理论被应用于这些实验结果。
