Sex categorization of conspecific pictures in Japanese monkeys (Macaca fuscata)
Sex categorization of conspecific pictures in Japanese monkeys (Macaca fuscata)
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DOI：
10.1007/s10071-006-0020-0
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发表时间：
2006-07-01
期刊：
影响因子：
2.7
通讯作者：
Izumi, Akihiro
中科院分区：
文献类型：
--
作者：
Koba, Reiko;Izumi, Akihiro
我们调查了猴子是否会从照片中辨别出个体的性别。成年和未成年猴的全身照片被用作刺激。两个雄性日本猴子进行训练的两个选择性别分类任务，其中每两个选择的图片被分配到男性和女性，分别。在培训之后，给猴子看新的猴子图片，测试它们是否获得了分类任务。结果表明，虽然猴子能够区分成年雄性和雌性的照片，但区分非成年照片却很困难。图片的部分展示显示，显眼的和性特征的部分（即，包括男性阴囊在内的下腹或包括女性乳头在内的乳房）在性别分类中起着重要作用。
We investigated whether monkeys discriminate the sex of individuals from their pictures. Whole-body pictures of adult and nonadult monkeys were used as stimuli. Two male Japanese monkeys were trained for a two-choice sex categorization task in which each of two choice pictures were assigned to male and female, respectively. Following the training., the monkeys were presented with novel monkey pictures, and whether they had acquired the categorization task was tested. The results suggested that while monkeys discriminate between the pictures of adult males and females, discrimination of nonadult pictures was difficult. Partial presentations of the pictures showed that conspicuous and sexually characteristic parts (i.e., underbellies including male scrotums or breasts including female nipples) played an important role in the sex categorization.