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Albert István
Department of Automation and Applied Informatics

Brain Computer Interfaces are used to connect human mind and external artificial devices such as computers, artificial legs or arms. Mainly the medical researchers are interested in this filed, but nowadays there a fast growing group of firms developing and manufacturing BCI based devices. These tools have a very complex structure due to the complexity of the human brain and the gained data from it. The fact that we have limited knowledge about how the brain and cognitive processes work makes it more complicated. There are important aspects of using such devices inside on outside the brain: it should not harm the tissue of the brain, not interfere with the processes of min except if this is the main goal.

At the present there are a few BCI enabled products on the market. They can compete their medical equivalents in accuracy, reliability. For example an EEG measuring instrument used to be huge and not movable – or just very heavy - , today we can buy such a device sized as a Bluetooth headset.

The aim of this thesis is to examine the medical and technological background of Brain Computer Interface. The second aim is examine the currently available BCI devices and choose an of them to develop an application to show a possible usage. In this case, I developed a Windows based program using a Lego Mindstorms NXT 1.1 robot. The robot is controlled by the chosen BCI through the developed program.

The main goal of this example is to show how powerful and interesting applications can be created in the future using the power of the human mind and the advanced technology.


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