Animal Form/Function movement dynamics fall into the category where the arms and legs both act in unison. The head is kept in the midline, the primary head sense being vestibular (sense of balance). These are commonly called Homologous Movements, which can be view as expansion/contraction of the core along the bilateral midline. Consider how a Jelly moves. In us, these primitive movements are (indirectly) controlled by our Sympathetic Nervous System.
When evaluating therapies for Animal layer neurophysiology we examine the function of the arms working together (IE: Pull-Ups) and legs working together (IE: Squats). It is common that we can identify that either arms or legs lag in their development. The attribute that lags will be the one that most benefits from therapeutic emphasis. Imbalances here can be observed in the TOP/BOTTOM(Transverse Plane) relationship in the body.
For example, if the Animals layer stands out in the SURVEY, and then significant irregularities in the function of the arms working in unison are identified, activities, exercises, and therapies focused on symmetrical arm function will be beneficial.
If the symmetrical arm and leg function seem similar in their level of maturation, or after focusing on either arms or legs, therapy should focus on both arms and legs in homologous movements to integrate their function.
MORE DISCUSSION OF OUR ANIMAL LEGACY
ASSOCIATED DEVELOPMENTAL REFLEXES
Fear Paralysis/Spinal Perez (Adult Startle Reflex)