@phdthesis{oai:nagasaki-u.repo.nii.ac.jp:00026565, author = {松尾, 萌美}, month = {2021-05-13}, note = {Purpose: Motor imagery is defined as a dynamic state during which a subject mentally simulates a given action without overt movements. Our aim was to use near-infrared spectroscopy to investigate differences in cerebral haemodynamics during motor imagery of self-feeding with chopsticks using the dominant or non-dominant hand.Materials and methods: Twenty healthy right-handed people participated in this study. The motor imagery task involved eating sliced cucumber pickles using chopsticks with the dominant (right) or non-dominant (left) hand. Activation of regions of interest (pre-supplementary motor area, supplementary motor area, pre-motor area, pre-frontal cortex, and sensorimotor cortex was assessed.Results: Motor imagery vividness of the dominant hand tended to be significantly higher than that of the non-dominant hand. The time of peak oxygenated haemoglobin was significantly earlier in the right pre-frontal cortex than in the supplementary motor area and left pre-motor area. Haemodynamic correlations were detected in more regions of interest during dominant-hand motor imagery than during non-dominant-hand motor imagery.Conclusions: Haemodynamics might be affected by differences in motor imagery vividness caused by variations in motor manipulation., 長崎大学学位論文 学位記番号:博(医歯薬)甲第1335号 学位授与年月日:令和3年3月22日, Author: Moemi Matsuo, Naoki Iso, Kengo Fujiwara, Takefumi Moriuchi, Goro Tanaka, Sumihisa Honda, Daiki Matsuda & Toshio Higashi, Somatosensory & Motor Research, 37(1), pp.6-13; 2020, Nagasaki University (長崎大学), 博士(医学) (2021-03-22)}, school = {Nagasaki University (長崎大学)}, title = {Hemodynamics during motor imagery of self-feeding with chopsticks}, year = {} }