Question

Which statement is true of grey matter?

• A. It is the primary source of intelligence
• B. It is located mainly in the frontal lobes
• C. It processes information
• D. It is the dominant type of nervous tissue in the brain

Answer 1

Answer:

C. It processes information

Grey matter, which makes up about 40 per cent of the brain, is responsible for processing information. White matter, which makes up about 60 per cent of the brain, is important for transmitting information from one part of the central nervous system to another. While we often associate the phrase 'using our grey matter' for intelligence, recent research has found that both grey and white matter is important for intellectual skill. Men use more grey matter from right across the brain for intellectual functions, whereas women use more white matter. Most of the white and grey matter used by women is located in the frontal lobes.