Hmmm I wonder how much brain waves fluctuate when jazz plays.
What my questions are Mindbuggle is
What does brainwave fluctuation mean? Does it mean you're thinking consciously more, or your brain is just more active? I'm asking this because "brain fluctuation" could mean nothing, which would mean this was just some silly statistic that someone came up with to make rap seem inferior to classical. But anywayz...
The human brain buzzes with a complex mix of electrical activity, or brain waves. These fast moving and overlapping waves are unique in every person. And they change in times of wakefulness, sleep, calm and stress.
Synchronized brain waves have long been associated with meditative and hypnogogic states, and audio with embedded binaural beats has the ability to induce and improve such states of consciousness. The reason for this is physiological. Each ear is "hardwired" (so to speak) to both hemispheres of the brain. Each hemisphere has its own olivary nucleus (sound-processing center) which receives signals from each ear. In keeping with this physiological structure, when a binaural beat is perceived there are actually two standing waves of equal amplitude and frequency present, one in each hemisphere. So, there are two separate standing waves entraining portions of each hemisphere to the same frequency. The binaural beats appear to contribute to the hemispheric synchronization evidenced in meditative and hypnogogic states of consciousness. Brain function is also enhanced through the increase of cross-collosal communication between the left and right hemispheres of the brain. When certain music such as mozart is played, the brain waves
create more connections.
In highly publicized work, researchers at the University of California at Irvine (UCI) demonstrated that listening to Mozart's Sonata for Two Pianos (K.448) enhanced visual spatial learning skills. Frances H. Rauscher, PhD and her colleagues conducted a study with 36 undergraduates from the department of psychology who scored 8 to 9 points higher on the spatial IQ test (part of the Stanford-Binet Intelligence scale) after listening to 10 minutes of Mozart. Gordon Shaw, one of the researchers, suggested Mozart's music may be able to warm up the brain, "We suspect that complex music facilitates certain complex neuronal patterns involved in high brain activities like math and chess. By contrast, simple and repetitive music could have the opposite effect." In a follow up study the researchers tested spatial skill by projecting 16 abstract figures similar to folded pieces of paper on an overhead screen for one minute each. The test looked at ability of participants to tell how the items would look unfolded. Over a 5-day period, one group listened to Mozart's Sonata for Two Pianos, another to silence, and a third to mixed sounds, including music by Philip Glass, an audiotaped story, and a dance piece. The researchers reported that all three groups improved their scores from day one to day two, but the group that listened to Mozart improved their pattern recognition scores 62% compared to 14% for the silence group and 11% for the mixed group. On subsequent days the Mozart group achieved yet higher scores but the other groups did not show continued improvement. The researchers proposed that Mozart's music strengthened the creative right-brain processing center associated with spatial reasoning. "Listening to music," they concluded, "acts as an exercise for facilitating symmetry operations associated with higher brain function. Don Campbell gives a nice summary of this work in The Mozart Effect, along with many other examples of music enhancing learning and healing the body. Campbell writes that in his experience Mozart's violin concertos, especially numbers 3 and 4 produce even stronger positive effects on learning.