Abstract #2155

The Correlation Between the BOLD Contrast and Motor Execution Quantified by Motion-Capture Analysis of the Movements

Toshiharu Nakai¹, Ichiro Takashima², Makoto Miyakoshi³, Shintaro Ninomiya⁴, Ayuko Tanaka, Kayako Matsuo⁵, Junichi Hasegawa⁴

¹Neuroimaging & Informatics, NCGG, Ohbu, Aichi, Japan; ²AIST, Tsukuba, Ibaragi, Japan; ³JSPS, Tokyo, Japan; ⁴Chukyo University, Toyota, Aichi, Japan; ⁵NTU, Taipei, Taiwan

The relationship between the BOLD contrast in the primary motor area and the motor performance quantified by motion-capture analysis using conventional CCD camera and color markers compatible with MRI was investigated. Significant difference of the correlation gradient corrected by the mean amplitude of the movements determined was detected depending on the preciseness of the movements (p<0.05). It was suggested that the correlation between the BOLD signal and motor performance is potentially biased by movement amplitude instability.