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BPM biosignals
How to measure biosignals (ECG, EMG, EEG, ...) -- Introduction
518
views
6 months ago
http://biosignals.berndporr...
This is the introductory clip to a series of youTube videos which show you from first principles how to record biosignals. The web page http://biosignals.berndporr... is the "glue" between these clips and shows you also the circuit diagram of the amplifier.
Presenter: Cat MacLeod
Read more
This is the introductory clip to a series of youTube videos which show you from first principles how to record biosignals. The web page http://biosignals.berndporr... is the "glue" between these clips and shows you also the circuit diagram of the amplifier.
Presenter: Cat MacLeod
http://biosignals.berndporr...
This is the introductory clip to a series of youTube videos which show you from first principles how to record biosignals. The web page http://biosignals.berndporr... is the "glue" between these clips and shows you also the circuit diagram of the amplifier.
Presenter: Cat MacLeod Show less
This is the introductory clip to a series of youTube videos which show you from first principles how to record biosignals. The web page http://biosignals.berndporr... is the "glue" between these clips and shows you also the circuit diagram of the amplifier.
Presenter: Cat MacLeod Show less
The bio-amplifier: from design to measurement
Play
This module shows you how to design and assemble a bio-amplifier component by component and then how to use it to measure ECG, EEG and EMG. The web site
http://biosignals.berndporr.me.uk
provides the "glue" between these clips and contains the circuit diagrams.
Bernd Porr
----
Disclaimer: use this information at your own risk. The bio-amplifier must be connected to an AD card which is isolated from mains. Never connect the bio-amplifier directly to equipment which is powered from mains.
http://biosignals.berndporr.me.uk
provides the "glue" between these clips and contains the circuit diagrams.
Bernd Porr
----
Disclaimer: use this information at your own risk. The bio-amplifier must be connected to an AD card which is isolated from mains. Never connect the bio-amplifier directly to equipment which is powered from mains.
The 12 lead ECG/EKG explained and recorded step by step
Play
These video clips show you how to measure the 12 standard leads of an ECG/EKG and how to construct the mean electrical vector. We start from first principles and aim to give you a deep understanding of the measurement process including the artefacts generated.
Presenter: Vasso Georgiadou
Presenter: Vasso Georgiadou
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ECG: The precordial/chest leads V1,...,V6
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EEG essentials: how to measure it and its artefacts
Play
Here we show how to measure an EEG from first principles by using a differential amplifier. In the second clip we show how how difficult it is to record a clean EEG and go through the possible artefacts. The third clip then shows how to overcome the problems with artefacts: we present a stimulus repeatedly and average over it which is called visually evoked potential.
EEG: examples of its applications
Play
This is a collection of clips showing applications of EEG. After having watched our clips about EEG measurements and artefacts make up your mind if it's really EEG or perhaps just muscle activity we see.
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MindFlex hoax?
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Model helicopter guided by power of thought
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EEG-controlled wheelchair - McMaster University
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VEP Demonstration
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16 items
Electrical vs non-electrical biosignals
Play
There are not just electrical bio-signals but also other modalities, for example light, pressure, force or temperature. Some of them can be used as an alternative to electrical biosignals (EMG vs acceleration) and some are rather unique (body temperature, blood pressure). This playlist demonstrates that the choice or combination of different sensors will contribute greatly to the success of an experiment.
The basics of processing bio-signals with MATLAB/OCATVE
Play
This playlist shows you how to use MATLAB (or it's free version OCTAVE) to display and process your biosignals. As an instructional example we use the aVF recording which is contaminated by 50Hz mains and clean it up step by step. We first plot the data with the right scaling in the timedomain and frequency domain, filter out the 50Hz and then also detect the heart rate. Having watched these clips will enable you to master your processing tasks with this powerful scripting language.
EMG: electrode placments for different muscles
Play
This is a collection of video clips made by other people here on youTube about measuring muscle activity.
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Corrugator (EMG)
- by nlabpsycho
- 279 views
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Zygomaticus (EMG)
- by nlabpsycho
- 224 views
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EMG (Electromyography) tutorial
- by ryersonSMARTLab
- 10,767 views
Recent uploads
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Temperature, heart rate and blood pressure while smoking a cigarette
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ECG or the pulse-oxymeter? What is the best choice for heart rate detection?
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EMG or accelerometer? What is the best choice?
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EEG: Visually evoked potentials (VEP)
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How to build a bio-amplifier: Protecting the inputs of the bio-amplifier and final assembly
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DSP: Detecting the heartrate of an ECG (MATLAB/OCTAVE)
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DSP: Using an FIR filter to remove 50/60Hz from an ECG (MATLAB/OCTAVE)
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DSP: The frequency spectrum of an ECG with 50Hz mains interference (MATLAB/OCTAVE)
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DSP: Scaling measurement data to take into account the pre-amp (MATLAB/OCTAVE)
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DSP: Plotting the contents of the ECG data file (MATLAB/OCTAVE)
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EEG artefacts: 'mind' or just muscle activity?
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ECG: common artefacts and how to avoid them
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