AbstractThis paper provides an overview of microswitch-based programs for persons with multiple disabilities. Three types of programs are included in the overview: Firstly, pro-grams involving only one microswitch, aimed at promoting specific response engagement in relation to contingent envi-ronmental stimulation; secondly, programs involving one or two microswitches, directed at promoting response engage-ment and choice; thirdly, programs typically involving a com bination of two microswitches, aimed at promoting response engagement as well as reducing problem posture or problem behavior. This paper also provides general considerations about the programs reviewed (i.e., in terms of applicability, potential benefits, and costs), and suggests several issues for new research in the area. KeywordsMicroswitches.Contingent stimulation. Technology. Microswitch cluster. Hand responses.Head responses . Vocal emissions.Tongue protrusion.Forehead skinmovement .Head forward tilting