The claimant sought a determination that he suffered a catastrophic impairment due to a Class 4 marked impairment. Adjudicator Lake accepted that the claimant sustained a mental or behavioural disorder as a result of the accident, but that he did not suffer a Class 4 marked impairment in any sphere of function (his impairments ranged from Class 2 to Class 3 in all four spheres). He was able to independently manage most aspects of his life (including self-care and housekeeping), maintained a social life, had positive relationships with his family, managed his own finances, and engage in work-like activities and tasks.