- 著者
- Takeshi Kawai Yutaka Watanabe Morio Tonogi Gen-yuki Yamane Shinichi Abe Yoshiaki Yamada Akiko Callan
- 出版者
- Tokyo Dental College, Japan
- 雑誌
- The Bulletin of Tokyo Dental College (ISSN:00408891)
- 巻号頁・発行日
- vol.50, no.4, pp.169-181, 2009 (Released:2010-02-23)
- 参考文献数
- 32
- 被引用文献数
- 7 11
We focused on brain areas activated by audiovisual stimuli related to swallowing motions. In this study, three kinds of stimuli related to human swallowing movement (auditory stimuli alone, visual stimuli alone, or audiovisual stimuli) were presented to the subjects, and activated brain areas were measured using fMRI and analyzed. When auditory stimuli alone were presented, the supplementary motor area was activated. When visual stimuli alone were presented, the premotor and primary motor areas of the left and right hemispheres and prefrontal area of the left hemisphere were activated. When audiovisual stimuli were presented, the prefrontal and premotor areas of the left and right hemispheres were activated. Activation of Broca's area, which would have been characteristic of mirror neuron system activation on presentation of motion images, was not observed; however, activation of brain areas related to swallowing motion programming and performance was verified for auditory, visual and audiovisual stimuli related to swallowing motion. These results suggest that audiovisual stimuli related to swallowing motion could be applied to the treatment of patients with dysphagia.
- 著者
- Noboru Ishikawa Yuzo Hirayama Yasuo Miake Kei Kitamura Norio Kasahara Shinichi Abe Hitoshi Yamamoto
- 出版者
- THE SOCIETY FOR HARD TISSUE REGENERATIVE BIOLOGY
- 雑誌
- Journal of Hard Tissue Biology (ISSN:13417649)
- 巻号頁・発行日
- vol.28, no.3, pp.289-296, 2019 (Released:2019-07-31)
- 参考文献数
- 29
- 被引用文献数
- 2
In the field of forensic odontology, not only personal identification using oral conditions, including dental treatment marks and DNA typing, but also species identification, age or sex estimation using cranial or partial bones, and time after death may also be applicable as estimation methods. Among these many tasks, one of the most difficult is species identification of fragmented calvarium. This is because the calvarium has poor morphological features, except that it is a flat bone, and few reports have described how to differentiate it. In this study, a simple identification method for turtle shell (carapace and plastron) whose morphological characteristics closely resembled those of the calvarium was applied. As a result, in an enlarged image obtained using a stereoscopic microscope, the characteristics of each suture pattern could be confirmed. In the decalcified and non-decalcified bone specimens, the difference in the inner/outer laminar structure and the specific structural difference of the cancellous bone-equivalent part were confirmed. Furthermore, most of the features could be obtained in the destructive inspection when it was examined using micro CT imaging to determine whether discrimination by nondestructive inspection was possible or not. No significant difference in ingredients was found using the Electron Probe X-ray Micro Analyzer. The calvarium was more calcified than the carapace but less calcified than the plastron. From these results, we suggest that micro CT imaging is effective for discriminating between the calvarium and turtle shell in a short time.