@article{oai:muroran-it.repo.nii.ac.jp:00008307,
 author = {TAZAWA, Hiroshi and 田澤, 皓 and 三林, 光 and MITSUBAYASHI, Hikaru and HIRATA, Masaji and 平田, 正二 and HOCHEL,  Joachim and ヘーヒェル,  ヨアヒム and PEARSON, James and ピァーソン, ジェームズ},
 journal = {室蘭工業大学紀要, Memoirs of the Muroran Institute of Technology},
 month = {Nov},
 note = {application/pdf, Avian embryos develop within a hard eggshell, which permits the measurement of heart rate while maintaining an adequate gas exchange through the chorioallantoic membrane. Heart rate has been determined from cardiogenic signals detected either noninvasively, semi-invasively or invasively with various transducers. Firstly, we reviewed these previously-developed methods and experimental results on heart rate fluctuations in prenatal embryos. Secondly, we presented new findings on the development of heart rate fluctuations during the last stages of incubation, with emphasis on the perinatal period, which remained to be studied. Three patterns of acceleration of the instantaneous heart rate were unique to the external pipping period: irregular intermittent large accelerations, short-term repeated large accelerations and relatively long-lasting cyclic small accelerations. Besides these acceleration patterns, respiratory arrhythmia, which comprized oscillating patterns with a period of 1-1.5 sec, appeared during the external pipping period. Furthermore, additional oscillating patterns with a period of 10-15 min were found in some externally pipped embryos., 特集 : 「動物の心拍リズム」国際シンポジウム発表論文選集},
 pages = {39--50},
 title = {Cardiac Rhythms in Chick Embryos During Hatching},
 volume = {49},
 year = {1999},
 yomi = {タザワ, ヒロシ and ミツバヤシ, ヒカル and ヒラタ, マサジ}
}