The brain is the central organ of the human nervous system and controls most of the activities of the body and mind. It processes, integrates, and coordinates information received from sense organs around the body and makes decisions as to what instructions to send. The brain is also the centre for cognition, processing and storing information, decision making and our sense of self identity.
The cerebrum is the largest part of the human brain. It is divided into two cerebral hemispheres. Each hemisphere is conventionally divided into four lobes – the frontal, temporal, parietal, and occipital lobes. The frontal lobe is associated with executive functions including self-control, planning, reasoning, and abstract thought, while the occipital lobe is dedicated to vision. Within each lobe, cortical areas are associated with specific functions, such as the sensory, motor and association regions. Although the left and right hemispheres are broadly similar in shape and function, some functions are associated with one side, such as language in the left and visual-spatial ability in the right.
