Meaning
The meaning of SMR is not fully understood. Phenomenologically, a person is producing a stronger SMR amplitude when the corresponding sensory-motor areas are idle, e.g. during states of immobility. SMR typically decrease in amplitude when the corresponding sensory or motor areas are activated, e.g. during motor tasks and even during motor imagery.
Conceptually, SMR is sometimes mixed up with alpha waves of occipital origin, the strongest source of neural signals in the EEG. One reason might be, that without appropriate spatial filtering the SMR is very difficult to detect as it is usually superimposed by the stronger occipital alpha waves.
Read more about this topic: Sensorimotor Rhythm
Famous quotes containing the word meaning:
“The words of the Constitution ... are so unrestricted by their intrinsic meaning or by their history or by tradition or by prior decisions that they leave the individual Justice free, if indeed they do not compel him, to gather meaning not from reading the Constitution but from reading life.”
—Felix Frankfurter (1882–1965)
“A good education ought to help people to become both more receptive to and more discriminating about the world: seeing, feeling, and understanding more, yet sorting the pertinent from the irrelevant with an ever finer touch, increasingly able to integrate what they see and to make meaning of it in ways that enhance their ability to go on growing.”
—Laurent A. Daloz (20th century)
“You had to have seen the corpses lying there in front of the school—the men with their caps covering their faces—to know the meaning of class hatred and the spirit of revenge.”
—Alfred Döblin (1878–1957)