An adapted acoustic orientation system for promoting independent indoor travel and activity in persons with profound multiple disabilities

Two experiments assessed the effectiveness of an adapted acoustic orientati on system ill promoting independent indoor travel and activity in two adult s with profound multiple disabilities. The system consisted of a portable c ontrol device and acoustic sources. The portable control device activated e ach programmed destination (and turned on the acoustic sources showing the way to it) automatically, after a preset time had elapsed from the subject reaching the previous destination. The acoustic sources emitted verbal mess ages as orientation cries. Results indicated that the subject participating in Experiment 1 was highly successful in reaching the various destinations and carrying out the activities available. The subject participating in Ex periment 2 also showed a definite improvement in travel and activity. Gener al implications of the findings were discussed.