Cranial Rhythmic Impulse

Another rhythm oriented to within craniosacral therapy is called the cranial rhythmic impulse (CRI). This term was later shortened by some practitioners to the cranial rhythm.

Cranial Rhythmic Impulse:

  • commonly manifests at rates of 8–14 cycles a minute
  • a conditional rhythm that expresses historical forms, including central nervous system and autonomic nervous system activation
  • is not a tide
  • expresses unresolved conditional forces and patterns within the system
  • highly variable in its expression, compared to the totally stable Long Tide and the relatively stable mid-tide/fluid tide

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