Additional things to consider:
Children will often emit behavioral clues to their unmet needs. How can we re-frame a behavior to see what somatosensory input it provides and then change that input to be socially acceptable?
We are created to know and be known. The greatest therapy is to be present with a child and simply reinforce that they are precious, regardless of their abilities.
When a child is extremely dysregulated, the caregiver must first regulate themselves and then provide accommodations and adaptations to assist the child in co-regulation. Match their tempo and then use relationship to change regulatory states.
When a child experiences loss, they often look to gain back a sense of control. Often this is within the context of relationship. If sleep and food are both issues, the caregiver has failed on 2/3 of the child's basic needs. The therapist must address guilt and shame felt by the caregiver.
Love and relational support are crucial to healing. There is often over-reliance on the visual system to compensate for poor vestibular, tactile, auditory, or proprioceptive senses.
Head banging can be a signal of auditory sensitivity. When a child emits a high pitch scream, they are pulling in the tempani muscle and the strappedeus, which closes the child's ear to make an unpleasant sound dampened.
When a child talks with a high rate or pitch, it can be due to poor breath support.
When a child has vision loss, the vestibular system often seeks additional information and the child may increase head movements.
Regulation simply means a state of monitoring. Dysregulation implies that the current arousal state of the child does not match the social context. It is good for people to experience both up and down regulation states. The therapeutic diagnostic is are they are socially appropriate.