STRAIN IN THE FACIAL BONES

这里提出的研究将有助于对功能的理解。 灵长类动物面部区域的形态学。 因为灵长类动物的脸 本研究将通过咀嚼器，分析咀嚼力如何 分散在灵长类动物的脸上 这将由一个 食蟹猴面骨沿着的活体应变分析 应变计 玫瑰应变片（三个应变片元件， 方向）将直接与面骨结合， 氰基丙烯酸酯粘合剂。 然后，被约束的猕猴将咬传感器（或 咀嚼各种类型的食物），骨应变将被记录在调频磁带上 记录器和图表记录器。 为了精确地将动物的 行为与骨应变信号，动物和图表记录器将 录像 有了特效生成器， 动物和记录器将被生产和记录。 记录之后 过程中，原始菌株将从录音机播放到 图表记录器 最大和最小主应变为 由这些原始应变值确定。 此外， 将确定主要菌株。 在表面应变已经 沿着食蟹猴面部的沿着不同区域表征（例如， 下颌联合，眶后杆，前根， 颧弓、眶上区和眶间区）， 内应力将从应变模式中推断出来。 这将在 以了解猕猴面骨如何消散咀嚼应力。 这些数据应提供信息，以了解功能 面骨形态学的意义。

The research proposed here will contribute to a functional understanding of the morphology of the primate facial region. Because the primate face is dominated by the masticatory apparatus, this research will analyze how masticatory forces are dissipated throughout the primate face. This will be accomplished by an analysis of in vivo strain along the facial bones of Macaca fascicularis using strain gages. Rosette strain gages (three strain gage elements with a known orientation to one another) will be bonded directly to facial bones with a cyanoacrylate adhesive. The restrained macaque will then bite a transducer (or chew various types of foods), and bone strain will be recorded on an FM tape recorder and a chart recorder. In order to correlate precisely the animal's behavior with the bone strain signals, the animal and the chart recorder will be videotaped. With a special effects generator, a split-screen display of both animal and recorder will be produced and recorded. After the recording procedure, the raw strains will be played out from the tape recorder into the chart recorder. The maximum and minimum principal strains will then be determined from these raw strain values. Moreover, the direction of the principal strains will be determined. After surface strains have been characterized along different regions of the face of Macaca fascicularis (e.g. the mandibular symphysis, postorbital bar, anterior root of the zygoma, zygomatic arch, supraorbital region and interorbital region), patterns of internal stress will be inferred from patterns of strain. This will be done in order to understand how macaque facial bones dissipate masticatory stress. These data should provide information for understanding the functional significance of facial bone morphology.