Design and efficacy of a head-coil bite bar for reducing movement-related artifacts during functional MRI scanning
- Cite this article as:
- Menon, V., Lim, K.O., Anderson, J.H. et al. Behavior Research Methods, Instruments, & Computers (1997) 29: 589. doi:10.3758/BF03210613
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This article describes the design, construction, application, and effectiveness of a simple bite bar for use with an MRI whole-head coil to reduce head-movement-related artifacts during functional brain imaging. The device is comfortable to use and allows considerable flexibility in positioning the subject’s head. Eleven subjects were scanned while performing a motor-sequencing experiment with and without the bite bar. The bite bar was generally effective in reducing maximum head movement to less than 0.5 mm (translation) and 0.5° (rotation).