Listen to the Summary of Les Fehmi & Jim Robbins's The Open-Focus Brain in 20 minutes. Please note: This is a summary & not the original book. I began to study the role of synchrony in human brain activity in the late 1960s. I found that the brain's electrical activity is most prominent when it is in a relaxed but alert state. I designed and built my own EEG-biofeedback instrument to help me achieve this state, but I was unable to achieve more than baseline alpha production...