Brain Computer Interface

BRAIN COMPUTER INTERFACE (BCI) Do you think ???

Prepared By :

Then Think Differently !!!

Hazards of Mobile Communication  Brain

Cell damage due to radiation.  Increases attention deficiency.  Causes interference with various other electromagnetic devices.  Prone to reliability problems.  Cost ineffective.

What is Telepathy all about ? 

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Telepathy: Telepathy is the direct transference of thought from one person (sender) to another person (receiver) without using normal sensory channels Synchronous transfer of brain signals between two people. Highly transparent system. It is widely believed that in ancient times telepathy was the major mode of communication. An old solution to a new problem,i.e fast communication.

Telepathy exists ? Yes it does…!! 

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Many experiments have been conducted around the world to prove the existence of telepathy. Ex:- Mouse,cats,humans

Real World Examples… Case-1  The Experiment was conducted   

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using UART (Universal Asynchronous Receiver Transmitter) ,EEG. Consider this case in which the dot was controlled by the brain signal interface. The results were astonishing to say the least ! The controlling ability by human was correct to the tune of 66.66%. The encephalographic signal readings were non-linear and time variant.

Case 2  Another interesting case was 

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critically acclaimed. In this case beside us here a pixel on a VDU was linked to the Brain Computer Interface. The objective was to direct the dot towards the blinking block. The participants found it taxing and hence the success rate was approximately 38%. But the results were encouraging enough to justify further research on telepathy.

 BCI 

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System Design:

BCI consists of these four modules that communicate with each other: Operator module Source module Signal Processing module User Application module

THE WORKING IS BASED ON AN UNBORN, NEXT GENERATION CONCEPT WHICH I NAME AS “TELEPATHY IN MOBILE COMUNICATION” ( TMC )

Basic System Design

Source Module 

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The source module digitizes and stores brain signals and passes them on without any preprocessing to signal processing module. It consists of a data acquisition and a data storage component. A sample signal format obtained is as follows :

Signal Processing Module   

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The signal-processing module converts signals from the brain into signals that control an output device. This conversion has two stages: feature extraction and feature translation. In the first stage, the digitized signal received from the source module is subjected to procedures that extract signal features. In the second stage, a translation algorithm translates these signal features into control signals that are sent to the user application module.

Signal Processing Contd… 

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Further in this module new developments have made it possible to incorporate pattern matching. Various AI based algorithms have been developed to process the various brain signals. New and advanced filters are being designed to filter specific frequencies. Working of these algorithms are analogous to that of T9 dictionary commonly found in mobiles.

User Application Module 

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The user application module receives control signals from signal processing and uses them to drive an application. User application is presented visually on a computer screen and consists of the selection of targets, letters, or icons. User feedback could also be auditory or haptic. Selection is indicated in various ways. Some are interim output, such as cursor movement toward the item prior to its selection.

Operator Module  

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Operator module acts as a central relay for system. The operator module defines the system parameters and the onset and offset of operation. In addition, operator can display information (e.g., a text message or a signal graph) sent to it from any other module without needing any prior information about the nature of this information. This allows an investigator to control an experiment and to receive real-time information about online events (e.g., display of unprocessed brain signals) using the same operator module, irrespective of the details of the experiment.

Physical Interface

Platform and system requirements: requirements

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For the BCI system model, we chose Borland C++ as the programming language and Microsoft Windows™ 2000/XP as the operating system because it offers the most auxiliary components. PC configuration 1 was a machine with a 1.4-GHz Athlon processor, 256 Mb RAM, IDE I/O subsystem, and Data Translation DT3003 data acquisition board, running Windows 2000. PC configuration 2 was a machine with a 2.53-GHz Pentium 4 processor, 1 GB RAM, SCSI I/O subsystem, and National Instruments NI 6024E data acquisition board, running Windows XP.

Recent Developments 

This visually challenged person had his vision partially restored by an artificial vision system based upon BCI system design.

This is a brain chip designed to acquire and store brain signals (source module). •

Benefits of BCI   

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Cost effective. Safe and irradiative unlike mobiles. TMC is also directly beneficial to users with severe motor disabilities. It can be configured to use the specific brain signal, analysis method, application, and protocol that are suited for each user. Deaf and dumb can greatly convenience from TMC as it is completely non-intrusive unlike hearing aids. This system is highly scalable and can be extended to medical systems.

Limitations  

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Not supplementary to existing mobile networks. Frequency ranges are quite unpredictable as the brain signals are specific to individuals. Practical implementation is very cumbersome and error prone. Non-portable. It presents various misutilization possibilities.