GROOMING PREFERENCE & GENDER

相容的社会接触应该是环境丰富计划的一部分，以促进实验室灵长类动物的心理健康。 我们继续调查“梳理接触”（G-C）酒吧，允许身体接触，但防止侵略性的追求。 这种设计允许梳理和“选择”触点（由到G-C开口的距离决定）。 我们调查是否视觉接触的男性女性对食蟹猴与其他对尿皮质醇排泄和侵略产生的变化。 我们同时调查了是否使用一个熟悉的橡胶玩具（孔）作为笼丰富和侵略目标的变化时，其他对可见，以及孔的存在是否影响皮质醇和侵略水平。在（1）无接触;（2）梳理-接触对有梳理接触，但看不到其他猴子;（3）八个笼子对面的G-C Plus镜子允许每对看到其他三对的条件下，观察饲养在带有G-C栏的成对笼子中的八名受试者。 一半的受试者在每个4周条件的最后2周有金刚玩具，一半的受试者在前2周有金刚玩具。 我们测量了从1000小时到1500小时5小时内尿液中的皮质醇水平，并在同一时期拍摄了行为录像（尚未编码）。 皮质醇水平因条件而异，在最初接触其他配对时显著较高; G-C（无镜子）和无接触之间，以及Kong和No Kong之间的水平没有显著差异。 因此，视觉社会刺激对皮质醇的影响是显著的，但短暂的。 研究人员正在对录像带中的猴子行为进行编码，以确定它们对其他猴子的攻击性和咀嚼金刚玩具的行为是否会随着社会刺激的增加而增加。 在我们以前的相关研究中收集的数据正在分析中，手稿的准备工作仍在继续。

Compatible social contact should be a part of an environmental enrichment plan to promote psychological well-being of laboratory primates. We continued our investigation of "grooming-contact" (G-C) bars, which allow physical contact but prevent aggressive pursuit. This design allows grooming and "choice" of contact (determined by distance to the G-C opening). We investigated whether visual contact of male-female pairs of Macaca fascicularis with other pairs produced changes in urinary cortisol excretion and aggression. We simultaneously investigated whether the use of a familiar rubber toy (Kong) used as cage enrichment and aggression target changed when other pairs were visible, and whether Kong presence affected cortisol and aggression levels. Eight subjects housed in paired cages with G-C bars were observed under conditions of (1) No Contact; (2) Grooming-Contact pairs had grooming contact but saw no other monkeys; (3) G-C Plus Mirror mirrors opposite the bank of eight cages allowed each pair to see three other pairs. Half the subjects had Kong toys during the last 2 weeks of each 4-week condition and half had Kong toys during the first 2 weeks. We measured cortisol levels from urine excreted over 5 hours from 1000h to 1500h and videotaped behavior during the same period (not yet coded). Cortisol level varied by condition and was significantly higher during initial exposure to the other pairs; levels did not differ significantly between G-C (no mirror) and No Contact, nor between Kong and No Kong. Thus, the effects of visual social stimulation on cortisol were significant but transitory. Behavior is being coded from videotapes to determine whether aggression toward other monkeys and chewing of the Kong toy increased with increased social stimulation. Data collected in our previous related studies are under analysis and manuscript preparation continues.