Intrinsic fluctuations can reduce trail-to-trail variability in fNIRS signal
Functional near-infrared spectroscopy (fNIRS) is emerging brain imaging technique. The trail-to-trail variability in fNIRS signal may reduce the signal analysis performance. However, the source of the trail-to-trail variability remains unknown. Previous functional magnetic resonance image (fMRI) study suggested that the trail-to-trail variability can be attributed to intrinsic low frequency fluctuation in fMRI signal. The intrinsic low frequency fluctuation is known to reflect temporal correlations in signal changes between widely separated brain regions during both the resting state and active state. Meanwhile, recent fNIRS studies confirm that the intrinsic fluctuation can be robustly detected by functional near infrared spectroscopy (fNIRS). In this paper, we investigate the relationship between trail-to-trail variability and the intrinsic hemodynamic fluctuations in the fNIRS signal. The result suggests that the intrinsic frequency significantly contribute to the trail-to-trail variability in fNIRS signal.
brain signal functional near-infrared spectroscopy (NIRS) resting state functional connectivity trail-to-trail variability
Xiao-Su Hu Keum-Shik Hong Shuzhi Sam Ge
Department of Cogno-Mechatronics Engineering, Pusan National University; 30 Jangjeon-dong, Gumjeong- Department of Cogno-Mechatronics Engineering, Pusan National University; 30 Jangjeon-dong, Gumjeong- Department of Cogno-Mechatronics Engineering, Pusan National University; 30 Jangjeon-dong, Gumjeong-
国际会议
The 31st Chinese Control Conference(第三十一届中国控制会议)
合肥
英文
3909-3911
2012-07-01（万方平台首次上网日期，不代表论文的发表时间）