4.3: Short overview: Brain Structure

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The human brain is divided into three parts: the Brainstem, the cerebrum, and the cerebellum. The cerebrum is also comprised of right and left hemispheres. Cerebral cortex is the surface of cerebrum and divided into four lobes that some of the functions take place as follows which is the Frontal lobe that provides cognitive functions such as social and moral reasoning and also executive functions (Chayer and Freedman, 2001); the Temporal lobe involved in emotional processing and auditory functions; parietal lobe is responsible for language skills (reading/writing) and attention; occipital lobe is used for visual processing. Since the BCI systems are used to complete different tasks, researchers should consider the related area of the brain while they are obtaining the data acquisitions according to their experimental goals. Some of the data acquisition methods are discussed in the following sections.