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In humans, the '''brain''' is the part of the [[central nervous system]] found at the top of the [[spinal cord]], and is divided into three separate areas, the [[forebrain]], the [[midbrain]], and the [[hindbrain]]. The brain is involved in higher functioning such as decision-making, speech, and all of the [[senses]]. Investigation using new techniques such as [[fMRI]] is being carried out into the relationship between the brain and human behavior.

The '''brain''' is a major subdivision in an animal's [[central nervous system]]. It is located [[anterior]] to the other major division, the [[spinal cord]]. In more primitive nervous systems the brain can be as simple as a single or small collection of [[neurons]] called [[ganglia]]. In the vertebrates, the brain is much more developed and is divided into three separate areas, the [[forebrain]], the [[midbrain]], and the [[hindbrain]]. The brain is involved in higher functioning such as decision-making, speech, and all of the [[senses]]. Investigation using new techniques such as [[fMRI]] is being carried out into the relationship between the brain and human behavior.

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