Biosignal
Biosignal
Biosignal (pronunciation: /ˈbaɪoʊˌsɪɡnəl/), from the Greek words 'bios' meaning 'life' and 'signal' meaning 'sign', is a term used in the field of Biomedical Engineering to refer to any signal in living beings that can be continually measured and monitored.
Biosignals can originate from various sources, including electrical and electrochemical activities in the body, or mechanical actions such as the heartbeat or muscle contractions. They are often used in medical and biological research to monitor health, diagnose diseases, and understand biological phenomena.
Types of Biosignals
There are several types of biosignals, including:
- Electrocardiogram (ECG): This is a biosignal that measures the electrical activity of the heart.
- Electroencephalogram (EEG): This biosignal measures the electrical activity in the brain.
- Electromyogram (EMG): This biosignal measures the electrical activity in muscles.
- Electrooculogram (EOG): This biosignal measures the corneo-retinal standing potential between the front and the back of the human eye.
- Electrogastrogram (EGG): This biosignal measures the electrical activity in the stomach and the muscles around it.
Acquisition of Biosignals
Biosignals are typically acquired using a variety of biomedical instruments. These instruments convert the biosignals into electrical signals that can be amplified, filtered, and digitized for further analysis and interpretation.
Analysis of Biosignals
The analysis of biosignals involves various techniques and methodologies, including signal processing, data analysis, and machine learning. These techniques help in extracting useful information from the biosignals, which can aid in diagnosing and treating various medical conditions.
Applications of Biosignals
Biosignals have a wide range of applications in various fields, including:
- Medicine: Biosignals are used in the diagnosis and treatment of various diseases.
- Biomedical Research: Biosignals are used in studying various biological phenomena and in the development of new medical technologies.
- Neuroscience: Biosignals are used in studying the functioning of the brain and the nervous system.
- Sports Science: Biosignals are used in monitoring the performance and health of athletes.
External links
- Medical encyclopedia article on Biosignal
- Wikipedia's article - Biosignal
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