A comparison of Mouthstick and Morse code text inputs

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Abstract
Mouthstick and Morse code input methods were compared with respect to their effectiveness in transcriptive typing. Six able-bodied subjects without previous Morse code training were tested. Learning rates and final transcriptive typing rates obtained over a 2-month period were calculated for each method. The final average typing rates for mouthstick and Morse code input modes were 12.6 and 7.88 words per minute, respectively. Average mouthstick learning rates were also greater than Morse code learning rates. One quadriplegic patient who was a regular user of a Morse code computer interface was tested and had a 12.4 words per minute typing rate. These results indicate that the mouthstick input method surpassed the Morse code method in input rate and learning rate for the relatively short term of this study. However, prolonged testing should be done with disabled subjects to further explore the uses of both modes of input.

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