Perception of partly occluded figures by baboons (Papio papio)
Perception of partly occluded figures by baboons (Papio papio)
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DOI:
10.1068/p3071
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发表时间:
2000-01-01
期刊:
影响因子:
1.7
通讯作者:
Fagot, J
中科院分区:
文献类型:
--
作者:
Deruelle, C;Barbet, I;Fagot, J
Comparative literature provides conflicting findings whether animals experience amodal completion. Five experiments were conducted to verify if baboons perceive partly occluded objects as complete. The first three experiments used a go/no-go procedure and a video monitor for stimulus presentation. These experiments failed to reveal amodal completion, suggesting that the stimuli were processed as 2-D images rather than 3-D objects. In contrast, completion was demonstrated in a fourth experiment with cardboard stimuli in a two-alternative forced-choice (2AFC) discrimination task presented in a Wisconsin General Test Apparatus. Although in experiment 5 the same 2AFC procedure was used as in experiment 4, completion was absent when the stimuli were shown with a computer graphic system. The results suggest that baboons share with humans the ability for amodal completion, but also underline some procedural factors that might affect the elicitation of this capacity.