As used in this chapter, the term:

(1) "Head-injured person" means a person who has sustained brain damage of traumatic or acute onset, not of a degenerative nature, that results in temporary or permanent decrease of cognitive, behavioral, social, or physical functioning.

(2) "Spinal cord disabled person" means a person suffering from any spinal cord disease, spinal cord injury, or neural tube defect, whether congenital or acquired, which results in partial or total loss of motor or sensory functions and which results in partial or total disability, regardless of whether such disability is temporary or permanent.