The brain 8 review portable#
The brain 8 review Bluetooth#

In this book chapter, we will review recent research trends in wireless BCI systems. Moreover, international research groups have applied wireless BCI systems for interesting new applications such as home automation system based on monitoring human physiological states, cellular phone dialing, and drowsiness detection for drivers.

For example, Emotiv and Neurosky companies have recently released their wireless BCI headsets for entertainment uses such as brain gaming and mind monitoring. Recently, with growing interest, wireless BCI systems have been applied in entertainments as well. In the early days of BCI researches, cursor control and speller applications were developed mainly targeted for helping the disabled people.

The brain 8 review portable#

With portable wireless BCI systems, various real-life applications are under development now. These desirable aspects of wireless BCI systems promote to go beyond a laboratory scale experiments and to develop everyday-life applications. Postures and movements of users wearing the acquisition part of wireless BCI systems are also unimpeded. Removing wire connections, portability of BCI systems is greatly improved.

The brain 8 review Bluetooth#

Wireless BCI systems are to eliminate the wire connection, between the signal acquisition and the translation part, with the use of a wireless transmission unit such as Bluetooth and Zigbee modules. These restrictions make the types of applications for which BCI systems can be made useful be severely limited. Therefore, the application of BCI systems is difficult to escape from laboratory scale experiments. In addition, userвЂ™s movement is limited due to cable constraints. For these reasons, preparation time for measuring EEG signals is typically very long. Connection wiring is usually complicated with a large number of cables between the electrodes and the acquisition part. With just three electrodes positioned at the occipital lobe, the acquisition part of wired BCI systems generally comes with bulky and heavy amplifiers and preprocessing units. Depending on the type of connection between the two parts, we can divide BCI systems into two kinds, wired versus wireless BCI systems. With an application program, this part performs algorithmic processes such as feature extraction and classification to convert the raw neurophysiological signals into computer readable messages. The translation part is normally computing devices which are equipped with high performance processor such as laptops, PDAs, and smart phones. The signal acquisition part contains electrodes, analog circuit and digital system for neurophysiological signal recording and transmission. The BCI systems consist of two parts, signal acquisition and translation (see page 7 Figure 2).

This technology allows the users with new experiences which enable a direct communication between the human and the computers or external devices such as home appliances, and prosthetic devices. This process can become more successful вЂ“ fast and accurate вЂ“ through training and practice. The human can produce these commands by generating the neurophysiological signals intentionally.

EEG based BCI systems are designed to decode the intension of the human user and generate commands to control external devices or computer applications. They measure neurophysiological signals of the human, electroencephalogram (EEG) in particular. BCI systems provide a new communication channel to humans who use it. But, the same query returns 897 journals and conference papers for year 2011 (date of search: March 14, 2013). According to Scopus search engine, a search result with the keyword вЂњBrain Computer InterfaceвЂќ returns only two papers for year 1991. Over the past two decades, the study of the Brain Computer Interfaces (BCI) has grown dramatically.