Auditory-visual intermodal matching based on individual recognition in a chimpanzee (Pan troglodytes)
Auditory-visual intermodal matching based on individual recognition in a chimpanzee (Pan troglodytes)
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DOI：
10.1007/s10071-009-0269-1
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发表时间：
2009-10-01
期刊：
影响因子：
2.7
通讯作者：
Matsuzawa, Tetsuro
中科院分区：
文献类型：
--
作者：
Martinez, Laura;Matsuzawa, Tetsuro
识别具有不同感觉模态的熟悉个体的能力在生活在复杂的物理和社会环境中的动物中起着重要作用。在一只名叫潘的雌性黑猩猩身上研究了熟悉个体的个体识别。在之前的研究中，潘教授学习了一项视觉-视觉通道间匹配任务（AVIM），该任务包括将声音样本与相应发声者（人类和黑猩猩）的面部图片进行匹配。这项研究的目的是测试潘是否能够将她的AVIM能力推广到新的声音和面部刺激，包括三只幼年黑猩猩。实验一表明，潘对熟悉的成年黑猩猩和人类进行了很好的联合个体识别。然而，相对于成年黑猩猩的识别，婴儿黑猩猩的个体识别较差。使用新听觉样本的转移测试（实验2）证实了识别婴儿的困难。剩下的问题是什么样的线索是至关重要的联运匹配。我们测试了视觉线索的效果（实验3），通过引入新的照片，代表相同的黑猩猩在不同的视觉角度。结果表明，只有背影很难识别，这表明面部线索可能是至关重要的。我们还通过缩短听觉刺激的长度来测试听觉线索的效果（实验4），结果表明，200 ms的语音片段是正确识别的极限。总之，这些数据表明，黑猩猩的听觉视觉联运识别可能会受到限制的程度，暴露于不同的方式，并限于特定的视觉线索和听觉线索的阈值。
The ability to recognize familiar individuals with different sensory modalities plays an important role in animals living in complex physical and social environments. Individual recognition of familiar individuals was studied in a female chimpanzee named Pan. In previous studies, Pan learned an auditory-visual intermodal matching task (AVIM) consisting of matching vocal samples with the facial pictures of corresponding vocalizers ( humans and chimpanzees). The goal of this study was to test whether Pan was able to generalize her AVIM ability to new sets of voice and face stimuli, including those of three infant chimpanzees. Experiment 1 showed that Pan performed intermodal individual recognition of familiar adult chimpanzees and humans very well. However, individual recognition of infant chimpanzees was poorer relative to recognition of adults. A transfer test with new auditory samples ( Experiment 2) confirmed the difficulty in recognizing infants. A remaining question was what kind of cues were crucial for the intermodal matching. We tested the effect of visual cues ( Experiment 3) by introducing new photographs representing the same chimpanzees in different visual perspectives. Results showed that only the back view was difficult to recognize, suggesting that facial cues can be critical. We also tested the effect of auditory cues ( Experiment 4) by shortening the length of auditory stimuli, and results showed that 200 ms vocal segments were the limit for correct recognition. Together, these data demonstrate that auditory-visual intermodal recognition in chimpanzees might be constrained by the degree of exposure to different modalities and limited to specific visual cues and thresholds of auditory cues.