Abstract:

Rapid technological progress causes the need to find more effective ways to transfer information between devices and between a device and a human. The classic way to exchange information between human and computer is based on such peripheral devices as a keyboard, mouse, and other control tools, for example Kinect.

Other, nowadays more unreliable methods of human-computer communication are voice commands. This way of sending information seems appropriate for people who, for various reasons such as disability, are unable to perform movements required to direct operation of computer devices. However, there are people who, in addition to problems with movement, are burdened with the difficulties with pronunciation or are silent. An alternative method that enables communication of such people with the outside world seems to be a brain-computer interface (BCI). Electroencephalography (EEG) amplifiers and special electrodes placed on the surface of the human head are used for the construction of such interfaces.

Electroencephalography (EEG) is a method used to record the electrical activity of the brain, using electrodes placed on the scalp or the cerebral cortex of the examined person. Recording signal obtained with this method is called electroencephalograms.

A device that allows non-invasive measurement of electrical activity in the brain is known as an electroencephalograph. This measurement is carried out using electrodes placed on the head, generally in accordance with international standards such as the standard 10-20 or 10-10.

Previous studies have shown that these devices are useful in human-computer communication. BCI interfaces, beyond its application in human-computer communication, are also appreciated in the entertainment industry, for example to control the computer game character.
Design and construction of brain-computer interfaces, however, requires consideration of a number of aspects that will be presented in this article.

The paper present the research and teaching laboratory created at the Institute of Computer Science of Lublin University of Technology. The laboratory is dedicated to the design of brain-computer interfaces and has been created to conduct research work and student projects carried out using three BCI paradigms: steady state visual evoked potentials (SSVEP), P300 evoked potential and motor imagery based on event-related desynchronization/synchronization (ERD/ERS).

Keywords:

Research and teaching laboratory, teaching projects, EEG.