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:
“Even in my own writings I cannot always recover the meaning of my former ideas; I know not what I meant to say, and often get into a regular heat, correcting and putting a new sense into it, having lost the first and better one. I do nothing but come and go. My judgement does not always forge straight ahead; it strays and wanders.”
—Michel de Montaigne (1533–1592)
“Unlike Freud, Jung did not believe that a dream is a mask for a meaning already known but deceitfully withheld from the conscious mind. In his view, dreams were communication, ideas expressed not always straightforwardly, but in the best way possible within the limits of the medium. Dreaming, in Jung’s psychology, is a constructive process.”
—Jeremy Campbell (b. 1931)