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The main motive of this "Blog" is to share interesting knowledge about amazing discoveries of science which has brought a miraculous change in the life of people.
This Post is About "Brain Computer Interface". It is a wonderful invention of science through which a connection can be established between "Human Brain and Device".
What is Brain Computer Interface (BCI)?
§ Brain-computer interface(BCI) is a collaboration between brain and the device that enables signals from the brain to direct external activities.
§ Computer-brain interfaces are designed to restore sensory function, transmit sensory information to the brain, or stimulate the brain through artificially generated electrical signals.
§ The BCI can lead to many applications especially for disabled person.
§ BCI applications utilize the brain and its nervous system functions.
More About Brain Computer Interface
1. BCI Model
2. BCI Approaches
3. Applications of BCI
4. Major Projects of BCI
5. How BCI Work?
6. Applications for future works in BCI
Brain Computer Interface (BCI) Model
Brain Computer Interface Approaches
There are namely three BCI Approaches
1.Invasive
- Invasive BCIs are embedded directly into the grey matter of the brain through neurosurgery.
- As they rest in the grey matter, invasive devices produce the highest quality signals of BCI devices but are prone to scar tissue build-up, causing the signal to become weaker or even lost as the body reacts to a foreign object in the brain.
2.Semi Invasive
- Electrocorticography (ECoG) measures the electrical activity of the brain taken from beneath the skull in a similar way to non-invasive electroencephalography but the electrodes are embedded in a thin plastic pad that is placed above the cortex, beneath the dura mater.
- Electroencephalography In conventional scalp EEG, recording is obtained by placing electrodes on the scalp with a conductive gel or paste, usually after preparing the scalp area by light abrasion to reduce clog due to dead skin cells. Many systems typically use electrodes, each of which is attached to an individual wire.
Brain Computer Interface Applications
§ Provide disabled people with communication, environment control, and movement restoration.
§ Provide enhanced control of devices such as wheelchairs, vehicles, or assistance robots for people with disabilities.
§ Provide additional channel of control in computer games.
§ Monitor attention in long-distance drivers or aircraft pilots, send out alert and warning for aircraft pilots.
§ Develop intelligent relaxation devices.
§ Control robots that function in dangerous or inhospitable situations (e.g., underwater or in extreme heat or cold).
§ Create a feedback loop to enhance the benefits of certain therapeutic methods.
§ Develop passive devices for monitoring function, such as monitoring long-term drug effects, evaluating psychological state, etc.
§ Monitor stages of sleep.
Major Projects of Brain Computer Interface
1.Brain Gate
What is Brain Gate ?
§ Monitors Brain Activity in the patient and converts the intention of the user into computer commands.
§ This can be used to control a robot arm or a cursor on a screen.
2.Australian Bionic Eye
What is Bionic Eye ?
§ Bionic eye is an electronic device that replaces utility of a part or whole of the eye. It is in early stage of development, but if it is successful, it could revitalize sight to people who have lost vision during their lifetime.
How Brain Computer Interface Work?
Nice
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