Search results for: wavelet
We use MatLab a lot! It’s the major program for brain imaging data analysis in our lab. However, I never thought we could actually contribute to MatLab’s development. In MatLab 2016, there is a toolbox called Wavelet Toolbox. If you read
Wavelet toolbox is a useful tool to study hyperscanning data. Many recent publications on NIRS hyperscanning use wavelet coherence to quantify the relationship between two interacting brains (e.g. Baker et al 2016, Nozawa et al 2016). You can see mor
The “Cross Wavelet and Wavelet Coherence Toolbox” download link by Grinsted et al (http://www.pol.ac.uk/home/research/waveletcoherence/) is dead. We will send you an active download link upon your request (an email with the download
In my previous blog (https://www.alivelearn.net/?p=1426) and in our paper titled “NIRS-based hyperscanning reveals increased interpersonal coherence in superior frontal cortex during cooperation” (full text pdf available ), we have shown
Can you find any pattern in the two signals, green and blue? The blue signal is the brain wave (measured by NIRS) of a person when he is pressing some buttons (the timing of button pressing is shown in the vertical lines); the green signal is also br
Let’s say you collected some brain data (time series) using NIRS while the participants were performing a task (say finger tapping), and you use the wt function in the “Cross Wavelet and Wavelet Coherence Toolbox” (link dead. Please
Wavelet transform coherence (WTC) is a method for analyzing the coherence and phase lag between two time series as a function of both time and frequency (Chang and Glover 2010). Here I played with it using the MatLab toolbox provided by Grinsted et a
香港中文大学二年级博士生胡玥为大家介绍一篇方法学文献，即基于人工神经网络重構的多通道fNIRS信号运动伪影校正。该方法不仅对心理学，还对运动科学以及康复医学等领域的研究具有重要的参考价值，热烈欢迎大家
Chunming Lu’s lab in Beijing Normal University has published a paper titled “Shared neural representations of syntax during online dyadic communication” in NeuroImage. This is another fNIRS hyperscanning study within a month (check
