巻号一覧
57 巻 (2007)
- 2 号 p. 61-
- 1 号 p. 1-
57 巻, 2 号
December
選択された号の論文の4件中1～4を表示しています
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研究
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藤本 麻里子, 竹下 秀子2007 年 57 巻 2 号 p. 61-71
発行日: 2007年
公開日: 2007/12/19
[早期公開] 公開日: 2007/12/14ジャーナル フリーThis study aimed to clarify the factors responsible for maintaining grooming interactions between adult female Japanese macaques (Macaca fuscata). The subjects were 10 individuals of the Arashiyama-E group, aged 10-12 years. We observed each subject by focal animal sampling and recorded by whom and how the grooming interactions were initiated, maintained, and terminated. Most of the grooming interactions were initiated by an initial groomer without solicitation by the initial groomee and terminated without role reversal. However, when role reversals occurred, the duration of the grooming interactions correlated with the number of role reversals. The results suggest that repetitive role reversals between the groomer and groomee might play a role in maintaining grooming interactions and that kin relationship determines the type of behavior triggering the role reversals that occur during the interactions, i.e., “soliciting” or “giving.”抄録全体を表示PDF形式でダウンロード (885K)
資料
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鷲塚 清貴, 谷内 通2007 年 57 巻 2 号 p. 73-79
発行日: 2007年
公開日: 2007/12/19
[早期公開] 公開日: 2007/07/02ジャーナル フリーTen zebrafish (Danio rerio) were tested in an aquatic version of the eight-arm radial maze by means of a forced- and free-choice procedure, which could not be solved using a stereotypic response pattern. After training once a day for 60 days, the fish achieved a correct-choice ratio of about 60%, significantly higher than the chance level (41.38%). Following the acquisition training, the fish received two trials a day to test effects of the length of inter-trial intervals on this maze performance. The choice accuracy for the second trials was significantly lower when the inter-trial intervals were 3 min than when they were 60 min. These results suggest that zebrafish can learn a radial-arm maze task to some extent, and that increasing the length of inter-trial intervals alleviates proactive interference on the maze performance.抄録全体を表示PDF形式でダウンロード (760K) -
柾木 隆寿, 巽 香菜子, 中島 定彦2007 年 57 巻 2 号 p. 81-88
発行日: 2007年
公開日: 2007/12/19
[早期公開] 公開日: 2007/11/28ジャーナル フリーThe present study investigated how rats and humans classify five kinds of “tea” after tasting them. In Experiment 1, rats consumed one of five commercial brands of tea (two brands of green tea, two brands of herb blend tea, and one brand of barley tea) followed by an injection of poisonous lithium chloride. The animals were then tested with the individual teas on successive days (one brand per day) to assess generalization of their conditioned aversion. In Experiment 2, human participants were required to rate the similarity of these teas using visual analogue scales and a blind paired-comparison procedure. Multidimensional scaling and cluster analysis methods applied to these data revealed that rats and humans categorized the teas in the similar way. The green teas were clearly distinguished from the other teas and the barley tea was placed in the same class as the herb blend teas.抄録全体を表示PDF形式でダウンロード (863K) -
藤田 和生, 高岡 祥子, 古見 昌宏2007 年 57 巻 2 号 p. 89-94
発行日: 2007年
公開日: 2007/12/19
[早期公開] 公開日: 2007/11/29ジャーナル フリーWe examined ability for discrimination of social odors in newborn dog puppies (Canis familiaris) with eyes and ears closed. Eight 7- or 8-day-old puppies were placed between two handkerchiefs on which two types of odor were added. One odor was that from their biological mothers who nursed the puppies. The other was that from an unfamiliar unrelated adult female for one brood of 4 miniature dachshund puppies or that from an unfamiliar daughter of the mother for the other brood of 4 miniature schnauser puppies. The puppies preferentially stayed touching the handkerchief with the mother's odor for significantly longer duration. The results suggest that the ability for olfactory discrimination of biologically important stimuli may be well developed before the puppies open their eyes.抄録全体を表示PDF形式でダウンロード (657K)
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