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

Disabil Rehabil Assist Technol. 2014 May;9(3):260-3. doi: 10.3109/17483107.2013.785037. Epub 2013 Apr 18.

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.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Amyotrophic Lateral Sclerosis / diagnosis
  • Amyotrophic Lateral Sclerosis / rehabilitation*
  • Communication Aids for Disabled*
  • Humans
  • Male
  • Microtechnology / methods
  • Quality of Life*
  • Severity of Illness Index
  • Speech Recognition Software
  • Voice*