Brain Biology – Test your knowledge! What is Dopamine? Dopamine is a... Part of the brain Neurotransmitter Topping to put on a pizza Hmmm... that's not quite right Well done! Dopamine is one of the 4 main neurotransmitters! Restart quiz So you think you know EEG waves? Below are 3 statements about EEG waves. Which one is correct? EEG waves are caused by movement of ions outside neurons. Inhibitory brain activity causes negative EEG waves. EEG waves are mainly associated with ions crossing the membrane during action potentials. Hmmm... that's not quite right Well done! You know your stuff! Restart quiz