The ectoderm is the outermost of the four embryonic germ layers. Ectodermal tissues relay from the cerebral cortex and respond to separation, territory and belonging, and motor conflicts.

In embryonic development, the ectoderm is the first germ layer to differentiate, forming the outermost layer of the organism.

The biological conflicts associated with ectodermal tissues involve the organism’s relationship to its environment and to other organisms: separation conflicts (the loss or threat of loss of contact), territorial conflicts (masculine: loss of or threat to territory), and belonging conflicts (feminine: loss of or threat to belonging in a social group). 

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Ectodermal tissues include the skin’s outer layer (epidermis and squamous epithelium), sensory organs and nerves, and the epithelial linings of body passages such as the bronchi, the coronary vessels, the bile duct, the islet cells which regulate blood sugar levels, and the urogenital tract.

These tissues are part of the “new brain” group: their special biological programs are coordinated by the cerebral cortex, the most recently-evolved region of the brain.  

Special biological programs in ectodermal tissues have specific patterns of response depending whether they are relayed from the “territorial areas” (the temporal lobes) or “outside the territorial area” (the rest of the cerebral cortex).

During the conflict-active phase, ectodermal tissues undergo cell loss or ulceration: a thinning or erosion of the tissue through cell loss; and/or functional loss such as a reduction in insulin or glucagon production (causing diabetes or hypoglycemia) or muscle paralysis (loss of motor control).

Sensory and mucosal tissues will either have loss of sensation during the active conflict (“outer-skin pattern”) or heightened sensation such as rheumatic pain or itching (“gullet-mucosa pattern”) during the active conflict.

During the healing phase, ulcerated tissue rebuilds through cell proliferation, often with temporary inflammation, swelling, and oversensitivity (outer skin pattern) or numbness (gullet-mucosa pattern).

Many common skin conditions, respiratory symptoms, and urogenital symptoms are ectodermal healing-phase events following the resolution of separation or territorial conflicts.

Territory(masculine) or feminine (belonging) conflicts that relay through the temporal lobes of the cerebral cortex, affect masculine and feminine hormone production and profoundly affect the individual’s perceptions and responses (“hormone status”). Combinations of temporal lobe conflicts also produce psychosis (“schizophrenic constellations”) during the conflict-active phase, and are the basis of most addiction, compulsive behaviour, and what is diagnosed as mood disorders, personality disorders, and “mental illness.” Sexuality and gender identity are also controlled through these relays.

Because ectodermal tissues are relayed through the cerebral cortex, laterality (dominant vs. non-dominant side) is relevant: which side of the body is affected will correspond to whether the biological conflict involved someone the individual sees as a partner-type relationship (dominant side) or a mother-child-type relationship (non-dominant side).