Inclusion Criteria:  Documented concussion or acquired brain injury which is at least 6 months old at the first (potential) therapy session. Employment more than 50% of the time after finishing the latest education and employed at least 6 consecutive months immediately preceding the injury If the patient is currently fully employed, he/she must have substantial risk of decreasing vocational status. No substance abuse or issues currently in- or requiring- psychiatric treatment.  Exclusion Criteria:  Progressive injuries are excluded, including dementias. Pensioned or recommended for pension at the time of inclusion,