A voice-sensitive microswitch for a man with amyotrophic lateral sclerosis and pervasive motor impairment

Abstract

Objective: To assess a voice-sensitive microswitch for a 67-year-old man with amyotrophic lateral sclerosis (ALS) who had difficulties continuing to use an optic microswitch through small chin movements. Method: The man used the microswitches in combination with a computer-aided program to (a) access preferred songs and videos or make requests, and (b) operate a messaging system to communicate with his wife and sons. To assess the man’s performance with the two microswitches, we alternated sessions with one microswitch with sessions with the other. Results: The man’s performance with the new microswitch was apparently more efficient (i.e. he could generally activate the new microswitch with a single attempt while he needed a mean of about two attempts for each activation of the optic microswitch). The man also developed a clear preference for the new microswitch. Conclusion: Technology updates are critical within programs for persons with motor degeneration.

Implications for Rehabilitation

• A microswitch that can be used efficiently and without effort is critically important for a person with ALS.

• The microswitch can be used with programs that allow the person to manage leisure stimulus events, request opportunities and/or text messaging communication.

• The microswitch needs to be updated (changed) in relation to the person’s physical deterioration.

• Amyotrophic lateral sclerosis
• computer-aided program
• optic microswitch
• text messaging
• voice-sensitive microswitch