Search

Your search keyword '"Miki, Kensaku"' showing total 40 results
Start Over Author "Miki, Kensaku"
40 results on '"Miki, Kensaku"'

2. Basic Function

Author

Miki, Kensaku, Kakigi, Ryusuke, Tobimatsu, Shozo, editor, and Kakigi, Ryusuke, editor

Published
2016
Full Text
View/download PDF

20. Virtual reality画像を用いた仮想宇宙船内での聴覚誘発脳磁場反応

Author

Kakigi, Ryusuke, Miki, Kensaku, 柿木 隆介, 三木 研作, Kakigi, Ryusuke, Miki, Kensaku, 柿木 隆介, and 三木 研作

Abstract

To investigate changes of auditory perception under microgravity conditions while in orbit, we developed a virtual reality the inside image of a module for the space station 'Kibo' and analyzed whether auditory cortex activity is influenced by rotating the image using MagnetoEncephaloGraphy (MEG). We presented 1,000 Hz pure tone as the auditory stimulus to normal volunteers in four different visual conditions: (1) RR (Revolutionary Rotation): The virtual images rotated around the center, (2) VR (Vertical Rotation): The images rotated vertically, (3) HR (Horizontal Rotation): The images rotated horizontally and (4) ST (StaTic): The images did not rotate. In the rotation conditions, particularly in RR and VR, every subject really felt as if they were in a microgravity environment. Then, we compared the difference in the auditory evoked component among the conditions. The dipoles were estimated to lie in Heschl's gyrus for all conditions with no significant differences in location among the conditions, but the dipole moment was significantly larger for RR and VR than for ST in the right hemisphere. These results show that auditory function was influenced by rotation of the inside for the space module with microgravity, directly by audio-visual interaction and/or indirectly through vestibular function, which may cause more complicated and tougher mental and physical stress for humans working in space.

Published
2015

22. Magnetoencephalography in Assessment of Pain in Humans

Author

Kakigi, Ryusuke, primary, Inui, Koji, additional, Hoshiyama, Minoru, additional, Watanabe, Shoko, additional, Naka, Daisuke, additional, Miki, Kensaku, additional, Yamasaki, Hiroshi, additional, Tran, Diep Tuan, additional, Qiu, Yunhai, additional, and Wang, Xiaohong, additional

Full Text
View/download PDF

24. Auditory evoked magnetic fields in a spaceship imaged by using virtual reality

Author

Kakigi, Ryusuke and Miki, Kensaku

Subjects
聴覚誘発脳磁場, magnetoencephalography, 誘発反応, 前庭, バーチャルリアリティ, visual perception, 知覚, perception, biomagnetism, auditory stimulus, vestibule, visual stimulus, 視覚, Kibo, MEG, auditory evoked magnetic field, 生理学的応答, 聴覚刺激, auditory perception, きぼう, evoked response, 視覚刺激, 脳磁計測, 生体磁場, virtual reality, 聴覚, physiological response
Abstract

To investigate changes of auditory perception under microgravity conditions while in orbit, we developed a virtual reality the inside image of a module for the space station 'Kibo' and analyzed whether auditory cortex activity is influenced by rotating the image using MagnetoEncephaloGraphy (MEG). We presented 1,000 Hz pure tone as the auditory stimulus to normal volunteers in four different visual conditions: (1) RR (Revolutionary Rotation): The virtual images rotated around the center, (2) VR (Vertical Rotation): The images rotated vertically, (3) HR (Horizontal Rotation): The images rotated horizontally and (4) ST (StaTic): The images did not rotate. In the rotation conditions, particularly in RR and VR, every subject really felt as if they were in a microgravity environment. Then, we compared the difference in the auditory evoked component among the conditions. The dipoles were estimated to lie in Heschl's gyrus for all conditions with no significant differences in location among the conditions, but the dipole moment was significantly larger for RR and VR than for ST in the right hemisphere. These results show that auditory function was influenced by rotation of the inside for the space module with microgravity, directly by audio-visual interaction and/or indirectly through vestibular function, which may cause more complicated and tougher mental and physical stress for humans working in space., 資料番号: AA0063706081

Published
2008

40. [Mechanisms of face perception in humans: an MEG study].

Author

Miki K and Kakigi R

Subjects
Humans, Magnetoencephalography, Brain physiology, Brain Mapping, Face, Form Perception physiology, Pattern Recognition, Visual physiology
Abstract

In this review article, we summarize our results from magnetoencephalography (MEG) and electroencephalography (EEG) studies on face perception. The primary results were as follows: (1) facial (eye and mouth) movements are processed differently from general motion perception, but eye and mouth movements are likely processed in the same manner. (2) In a study investigating the interaction between auditory and visual stimuli relating to vowel sounds in the auditory cortex, vowel sound perception in the auditory cortex, at least in the primary processing stage, was not affected by simultaneously viewing mouth movements. (3) In a study investigating the effects of face contour and features on early occipitotemporal activity when viewing eye movement, there was evidence of specific information processing for eye movements in the occipitotemporal region, and this activity was significantly influenced by whether the movements appeared with the face contour and/or features. (4) In a study investigating the effects of inverting facial contour (hair and chin) and features (eyes, nose and mouth) on the processing of static and dynamic face perception, activity in the right fusiform area was more affected by the inversion of features, whereas activity in the left fusiform area was more affected by disruption of the spatial relationship between the contour and features in static face perception, and activity in the right occipitotemporal area was most affected by inversion of the facial contour in dynamic face perception. (5) In a study investigating the perception of changes in facial emotion, the areas of the brain involved in perceiving changes in facial emotion were found to have not matured by 14 years of age.

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results