Development and evaluation of a dual-output vocal cord vibration switch for persons with multiple disabilities
Bibliographic record
Abstract
PURPOSE: A novel dual-output vocal cord vibration switch is described and evaluated for two individuals with severe motor disabilities and complex communication needs. An evaluative case series was performed to compare the new device to its previously proposed single-output counterpart in terms of accuracy, speed and user fatigue. METHOD: In an ABAB design, participants were followed for up to 16 days as they performed several image matching tasks. Custom-written software recorded the average time taken to match each item, as well as the total number of selection errors. Participants reported their fatigue levels using a modified five-point Borg scale. RESULTS: For one participant, the dual-output version significantly decreased task completion time and selection error (p > 0.05, Kolmogorov-Smirnov test), thus improving her communication ability. For the second participant, no significant differences were observed between the single- and dual-output systems. Fatigue associated with illness and self-reported stress with school exams were identified as limiting factors. CONCLUSIONS: The dual-output vocal cord vibration switch provides a promising new alternative for individuals with severe and multiple disabilities who are able to hum or produce vocalizations. Both participants expressed desire to continue using the device for educational and entertainment purposes.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.004 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".