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141 results on '"Homma, Takahiro"'

5. Generation mechanism of cell assembly to store information about hand recognition

Author

Homma, Takahiro

Subjects
Quantitative Biology - Neurons and Cognition, Computer Science - Neural and Evolutionary Computing
Abstract

A specific memory is stored in a cell assembly that is activated during fear learning in mice; however, research regarding cell assemblies associated with procedural and habit learning processes is lacking. In modeling studies, simulations of the learning process for hand regard, which is a type of procedural learning, resulted in the formation of cell assemblies. However, the mechanisms through which the cell assemblies form and the information stored in these cell assemblies remain unknown. In this paper, the relationship between hand movements and weight changes during the simulated learning process for hand regard was used to elucidate the mechanism through which inhibitory weights are generated, which plays an important role in the formation of cell assemblies. During the early training phase, trial and error attempts to bring the hand into the field of view caused the generation of inhibitory weights, and the cell assemblies self-organized from these inhibitory weights. The information stored in the cell assemblies was estimated by examining the contributions of the cell assemblies outputs to hand movements. During sustained hand regard, the outputs from these cell assemblies moved the hand into the field of view, using hand-related inputs almost exclusively. Therefore, infants are likely able to select the inputs associated with their hand (that is, distinguish between their hand and others), based on the information stored in the cell assembly, and move their hands into the field of view during sustained hand regard.

Published
2019
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9. Congenital vascular ring

Author

Yoshimura, Naoki, Fukahara, Kazuaki, Yamashita, Akio, Doi, Toshio, Yamashita, Shigeyuki, Homma, Takahiro, Yokoyama, Shigeki, Aoki, Masaya, Higashida, Akihiko, Shimada, Yoshifumi, Toritsuka, Daisuke, Nagao, Kanetsugu, and Ikeno, Yuki

Published
2020
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10. Predictive factors of early autologous blood pleurodesis for postoperative air leak.

Author

Kitamura, Naoya, Doki, Yoshinori, Tanabe, Keitaro, Akemoto, Yushi, Shimada, Yoshifumi, Ojima, Toshihiro, Shimoyama, Koichiro, Homma, Takahiro, and Tsuchiya, Tomoshi

Abstract

Background: The usefulness of autologous blood pleurodesis for air leak after pulmonary resection is well known; however, factors predicting the therapeutic efficacy are poorly understood. Herein, we aimed to examine the predictors of early autologous blood pleurodesis for air leak following pulmonary resection. Methods: Patients who underwent pulmonary resection and autologous blood pleurodesis with thrombin for postoperative air leak between January 2016 and October 2022 were retrospectively analyzed. Patients received 50–100 mL of autologous blood and 20,000 units of thrombin on postoperative days 1–4. If necessary, the same procedure or pleurodesis with other chemical agents was repeated until the air leak stopped. Patients were divided into single-dose and multiple-dose groups based on the number of times pleurodesis had occurred before the air leak stopped and were statistically analyzed. Logistic regression analysis was performed to identify predictors of treatment efficacy. Results: Of the 922 patients who underwent pulmonary resection, 57 patients (6.2%) were included and divided into single-dose (n = 38) and multiple-dose (n = 19) groups. The amount of air leaks was identified as a significant predictor of multiple dosing, with a cutoff of 60 mL/min, in multivariate logistic regression analyses (odds ratio 1.13, 95% CI 1.03–1.24, p = 0.0065). The multiple-dose group showed a significantly higher recurrence of air leak (p = 0.0417). Conclusions: The amount of air leaks after pulmonary resection is the only significant factor predicting whether multiple autologous blood pleurodesis is required, and the recurrence rate of pneumothorax is significantly higher in such cases. [ABSTRACT FROM AUTHOR]

Published
2024
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13. Bleeding control.

Author

Homma, Takahiro, additional, Saji, Hisashi, additional, Shimada, Yoshifumi, additional, and Tanabe, Keitaro, additional

Published
2023
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19. Early chest tube removal within 6 hours after thoracic surgery results in improved postoperative prognosis and no adverse effects

Author

Homma, Takahiro, primary, Saji, Hisashi, additional, Shimada, Yoshifumi, additional, Tanabe, Keitaro, additional, Kojima, Koji, additional, Marushima, Hideki, additional, Miyazawa, Tomoyuki, additional, Kimura, Hiroyuki, additional, Sakai, Hiroki, additional, Otsubo, Kanji, additional, Hatakeyama, Takayuki, additional, and Tsuchiya, Tomoshi, additional

Published
2023
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29. Intraoperative methods for wrapping anastomoses after airway reconstruction: a case series

Author

Wang, Chudong, primary, Dong, Junguo, additional, Zhuang, Xiaoxue, additional, Yang, Chao, additional, Chen, Hanzhang, additional, Inage, Terunaga, additional, Velotta, Jeffrey B., additional, Brunelli, Alessandro, additional, Homma, Takahiro, additional, Shigemura, Norihisa, additional, Suen, Hon Chi, additional, He, Jianxing, additional, and Li, Shuben, additional

Published
2022
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42. Congenital vascular ring

Author

Yoshimura, Naoki, primary, Fukahara, Kazuaki, additional, Yamashita, Akio, additional, Doi, Toshio, additional, Yamashita, Shigeyuki, additional, Homma, Takahiro, additional, Yokoyama, Shigeki, additional, Aoki, Masaya, additional, Higashida, Akihiko, additional, Shimada, Yoshifumi, additional, Toritsuka, Daisuke, additional, Nagao, Kanetsugu, additional, and Ikeno, Yuki, additional

Published
2019
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45. Efficacy of 50 mg pregabalin for prevention of postoperative neuropathic pain after video-assisted thoracoscopic surgery and thoracotomy: a 3-month prospective randomized controlled trial

Author

Homma, Takahiro, primary, Doki, Yoshinori, additional, Yamamoto, Yutaka, additional, Ojima, Toshihiro, additional, Shimada, Yoshifumi, additional, Kitamura, Naoya, additional, Akemoto, Yushi, additional, Hida, Yuki, additional, and Yoshimura, Naoki, additional

Published
2019
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