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相关实验视频

Updated: May 10, 2025

fMRI Validation of fNIRS Measurements During a Naturalistic Task

fMRI Validation of fNIRS Measurements During a Naturalistic Task

Published on: June 15, 2015

对于fNIRS数据的时间规范化方法在持续时间变化很高的任务中.

Anna Falivene¹, Charlotte Johnson^2,3, Katrijn Klingels³

¹Scientific Institute IRCCS E. Medea, 23842 Bosisio Parini, Italy.

Sensors (Basel, Switzerland)

|April 28, 2025

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现在可以将不同试验持续时间的运动任务的功能近红外光谱 (fNIRS) 数据标准化. 一个新的MATLAB函数,TaskNorm,可以实现时间规范化,以准确的血液动力学反应平均和比较.

科学领域:

神经科学是一个神经科学.
生物医学工程生物医学工程
信号处理信号处理

背景情况:

功能近红外光谱 (fNIRS) 非常适合用于运动任务大脑活动测量,因为它具有可移植性和运动耐受性.
在fNIRS实验中的可变试验持续时间阻碍了直接比较和重复中血动力学反应的平均值.
标准化数据处理对于可靠的fNIRS分析至关重要.

研究的目的:

介绍 TaskNorm.m,一种新的 MATLAB 函数,用于从不同长度的试验中时间规范化 fNIRS 数据.
为了能够准确地平均和比较fNIRS研究中的血液动力学反应,试验持续时间可变.

主要方法:

开发一个 MATLAB 函数 (TaskNorm.m) 使用 spline 插值.
将fNIRS数据的时间轴重新调整为试验持续时间的固定百分比,采用一致数量的样本.
对八名儿童 (典型的发育和发育协调障碍) 进行功能测试,他们执行三个不同的运动任务.

主要成果:

任务规范 (TaskNorm) 函数成功地将时间序列fNIRS数据正常化,允许有效的平均和对重复进行比较.
该函数的性能是稳固的,并且独立于特定的任务或先前的数据预处理步骤.
在包括有或没有发育协调障碍的儿童在内的队列中得到验证.

关键词:

在 MATLAB 中,我们可以使用 MATLAB.数据的时间规范化.功能近红外光谱学近红外光谱学自主节奏的任务自动节奏的任务.线条插曲的线条插曲.

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Simultaneous Data Collection of fMRI and fNIRS Measurements Using a Whole-Head Optode Array and Short-Distance Channels

Simultaneous Data Collection of fMRI and fNIRS Measurements Using a Whole-Head Optode Array and Short-Distance Channels

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Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study

Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study

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Last Updated: May 10, 2025

fMRI Validation of fNIRS Measurements During a Naturalistic Task

fMRI Validation of fNIRS Measurements During a Naturalistic Task

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Simultaneous Data Collection of fMRI and fNIRS Measurements Using a Whole-Head Optode Array and Short-Distance Channels

Simultaneous Data Collection of fMRI and fNIRS Measurements Using a Whole-Head Optode Array and Short-Distance Channels

Published on: October 20, 2023

Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study

Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study

Published on: July 21, 2021

结论:

TaskNorm.m提供了一种可靠的解决方案,用于标准化fNIRS数据分析在具有可变试验持续时间的运动任务中.
该功能与Homer3包集成,有助于fNIRS数据处理的持续标准化.
这种工具有助于在神经成像中进行更准确,更可重复的研究.