Psychology LAQ Review: EEG Questions And Answers

full name - electroencephalogram what does it do? - It detects electrical activity in your brain using flat, metal discs also known as electrodes, which are attached to your scalp. what is an EEG test done for? - Tracks and records brain wave patterns What is an EEG test used for? - Helps diagnose conditions such as seizures, epilepsy, head injuries, dizziness, headaches, brain tumors, and sleeping problems pros - accurate temporal resolution, noninvasive procedure that gives researchers clear access to the brain, inexpensive, and easy to use. cons - inaccurate localization of activity, electric fields smear as they pass through the skull. case study - Davidson 2004 aim - to observe the difference between the brain activity of those who meditate for a long time and those who have never before procedure - 8 monks with years of practice and 10 students with a week of practice. Participants brain waves were measured using an EEG. observed the controls and the monks experienced an increased amount of gamma waves in their brain waves. conclusion - synchronized gamma-wave area of the monks' brains during meditation on love and compassion was found to be larger than the corresponding activation of the volunteers'