Your request is very general and has absolutely no details.
I suggest you that you start by searching this site and google for LabVIEW tutorials. Here, here, here, here and here are a few you can start with and here are some tutorial videos. You can also contact your local NI office and join one of their courses.
In addition, I suggest you read the LabVIEW style guide and the LabVIEW user manual (Help>>Search the LabVIEW Bookshelf).
After you've learned this and know exactly what you want to do (hardware, software requirements), you can try searching for "EEG" and see if anyone has done anything that can help you.
My project is about designing a system to measure the brain waves and show the signals in computer software. Our system consists of electrodes, amplifier and uses DAQ to see signals in pc. Our expectation is to present the EEG alpha and theta waves.