How we read brain?

we can read our brain in an instrument called---------? The instrument is call an Electro Encepahlo Gram (EEG).
The brain is not some book to be read at leisure. With the EEG you a moment ago find out how active (or inactive) your brain is using the electrical signals that the courage cells within the brain produce.
The EEG has four component side called alpha, beta, theta and delta breakers.
Like a book.. left to right.
There's a variety of ways to. I'm going to assume you're asking 'measure brain activity.' First, there's the EEG or Electroencephlagram which measures overall brain entertainment.. Not very interesting. A PET scan is different. The long-suffering is injected with radioactive glucose (sugar) and the level of glucose usage are measured (your body uses glucose for energy). A CAT scan is the only instrument that can donate a 3-D picture of the brain (usually in cross-sections). This is the instrument used to find abnormality in the brain approaching tumors, dain bramage, etc. the pictures are grayscale.