His experiments showed that when an area of the cortex was stimulated, the body responded with a movement, not just a single muscle.
Dr. Beevor concluded that “only co-ordinated movements are represented in the excitable cortex” [1] In relation to Beevor's Axiom, it has been found that the brain encodes sequences, such as playing the piano, signing our name, wiping off a counter, and chopping vegetables, and once encoded and practiced, it takes less brain activity to perform them.
The key characteristic of the primary motor cortex is its dynamic nature; the M1 changes based on experience.
The supplementary motor area (SMA) plays a key role in initiating motion sequences.
The premotor cortex (PMA) plays a key role when motor sequences are guided by external events.