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- W2488804782 abstract "Recently, the physiological function of the human brain has become the subject of several investigations. Several methods have been developed to measure neural functioning. One such method is functional magnetic resonance imaging (fMRI). This approach is utilized under a high magnetic field with an average strength of 1.5T. As a result, special devices are needed to serve as stimuli for subjects in an fMRI study. In particular, devices for the investigation of tactile sense are rare. In this work, the authors report the development of novel tactile display devices. These devices can be used to stimulate the skin of the subject’s hand to produces both pressure and movement stimulation. The devices are manipulated with ultrasonic motors that do not have coils and are constructed with non-magnetic materials, such as stainless steel and acrylic acid resin. Therefore, these devices can be used without disturbing the high magnetic field. To quantify the influence of the devices to the magnetic field, signal to noise ratios (SNR) for images generated by MRI were measured. These experiments confirmed that the SNR was altered by 5% when the devices were present; however, this change is within the acceptable range for the quality of an MRI image. From this work, the authors conclude that the developed devices have sufficient performance under high magnetic field conditions." @default.
- W2488804782 created "2016-08-23" @default.
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- W2488804782 date "2011-05-25" @default.
- W2488804782 modified "2023-09-26" @default.
- W2488804782 title "Development of Tactile Display Devices Using fMRI under High Magnetic Fields" @default.
- W2488804782 cites W1509562178 @default.
- W2488804782 doi "https://doi.org/10.4018/978-1-60960-559-9.ch035" @default.
- W2488804782 hasPublicationYear "2011" @default.
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