Slow brain waves vital in complex activity

slow brain oscillations, or theta waves, tune in the fast brain oscillations called high-gamma waves that signal the transmission of information between different areas of the brain.

If you are reading something, language areas oscillate in theta frequency allowing high-gamma-related neural activity in individual neurons to transmit information, said Knight. When you stop reading and begin to type, theta rhythms oscillate in motor structures, allowing you to plan and execute your motor response by way of high gamma. Simple, but effective.