nirs
You often need to plot the time series of NIRS signal from all channels with event indicators (See the example below). plotTraces can do that easily. In the above example, time series of all 24 channels are plotted. The number on the y-axis indicates
If you want to control ETG-4000 with your program through the serial port, and at the same time your experiment requires realtime feedback from the ETG4000, you can either merge the RealtimeOT script and your presentation script (which will be very c
Hitachi provides a Matlab script (RealtimeOT.m) which can deliver real-time feedback from ETG-4000. This script is installed in the computer (Windows 2000) in the NIRS room. One can modify the script to deliver the real-time signal in the desired for
To synchronize NIRS recording and your stimuli (visual, auditory, button press etc), your presentation program needs to talk to the NIRS machine. Hitachi ETG4000 allows serial communication between the NIRS machine and an external computer. You can u
Both are on NIRS (Near Infrared Spectroscopy). The first one is on how to detect NIRS activity earlier using multivariate (SVM) method; the 2nd one is a comprehensive comparison between NIRS and fMRI. Cui, Bray, Reiss (2010) Speeded Near Infrared Spe
1. plotTraces, plot a time series, or multiple time series on one plot, with vertical lines indicating the markers (events). Can be used for data quality check and global signal detection. 2. plotTopoMap, plot a map of activation. 3. plot2, scatter p
We use TCP/UDP/IP Toolbox 2.0.5 to read and write data from/to a TCPIP port. It’s fast and reliable. The version we use is 2.0.5. Below is a matlab sample script showing how to connect to another computer (called ETG-4000) with TCPIP : %Connect
Noise removal methods in NIRS can be divided into 4 categories: reducing noise based on its temporal characteristics: The instrument noise is usually in the high frequency band and thus can be removed by band pass filtering. Band pass filtering can a
Open properties of the experiment, select tab “Devices” Add a serial port. Make sure the COM Port number is correct In your experiment flow, add inline function to where you want to trigger ETG4000 or put marker. In that function, enter t
