Parron Carole, Washburn David
Laboratory of Cognitive Psychology, Centre National de la Recherche Scientifique, UMR 6146, Universite d'Aix-Marseille, 13331 Marseille cedex 1, France.
J Exp Psychol Anim Behav Process. 2010 Jan;36(1):148-57. doi: 10.1037/a0015629.
This study assessed the contribution of edge and surface cues on object representation in macaques (Macaca mulatta). In Experiments 1 and 2, 5 macaques were trained to discriminate 4 simple volumetric objects (geons) and were subsequently tested for their ability to recognize line drawings, silhouettes, and light changes of these geons. Performance was above chance in all test conditions and was similarly high for the line drawings and silhouettes of geons, suggesting the use of the outline shape to recognize the original objects. In addition, transfer for the geons seen under new lighting was greater than for the other stimuli, stressing the importance of the shading information. Experiment 3, using geons filled with new textures, showed that a radical change in the surface cues does not prevent object recognition. It is concluded that these findings support a surface-based theory of object recognition in macaques, although it does not exclude the contribution of edge cues, especially when surface details are not available.
本研究评估了边缘和表面线索对猕猴（恒河猴）物体表征的贡献。在实验1和实验2中，训练5只猕猴辨别4个简单的立体物体（几何子），随后测试它们识别这些几何子的线条图、轮廓图和光照变化的能力。在所有测试条件下，表现均高于随机水平，并且几何子的线条图和轮廓图的表现同样出色，这表明猕猴利用轮廓形状来识别原始物体。此外，新光照条件下的几何子的迁移表现大于其他刺激，强调了阴影信息的重要性。实验3使用填充新纹理的几何子，结果表明表面线索的剧烈变化并不妨碍物体识别。研究得出结论，这些发现支持猕猴基于表面的物体识别理论，尽管这并不排除边缘线索的作用，尤其是在没有表面细节的情况下。
