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首页> 外文会议>Photonic Therapeutics and Diagnostics; Progress in Biomedical Optics and Imaging; vol.6, no.1 >Behavioral reaction times are correlated with frequency shift in optical imaging signals
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Behavioral reaction times are correlated with frequency shift in optical imaging signals

机译：行为反应时间与光学成像信号中的频移相关

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摘要

Previous research has examined the relationships between physiological parameters and frequency oscillations in hemodynamic activity of brain. The current study used functional near infrared spectroscopy (fNIRS) to examine the relationship between oscillatory hemodynamics and performance measures during a standard cognitive task. fNIR data (n=7) were collected from 16 optodes distributed over dorsolateral prefrontal and inferior frontal cortex during a standard visual "oddball" task while behavioral reaction times to each stimulus were recorded. A frequency analysis of the fNIRS data revealed that the ratio of the power at 0-30 mHz to the power at 30-150 mHz was correlated with the number of mistakes a subject made as, well as their reaction times. Relatively greater low-frequency oscillations were associated with more mistakes and increased behavioral reaction times.
机译：先前的研究已经检查了生理参数与大脑血液动力学活动中的频率振荡之间的关系。当前的研究使用功能性近红外光谱（fNIRS）来检查标准认知任务中振荡血液动力学与性能指标之间的关系。 fNIR数据（n = 7）是在标准视觉“ oddball”任务期间从分布在背外侧前额叶和下额叶皮层的16个光电二极管收集的，同时记录了每种刺激的行为反应时间。 fNIRS数据的频率分析显示，0-30 mHz处的功率与30-150 mHz处的功率之比与受试者犯错的次数及其反应时间相关。相对较大的低频振荡与更多的错误和增加的行为反应时间有关。

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