Optimizing Assisted Communication Devices for Children With Motor Impairments Using a Model of Information Rate and Channel Capacity
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|ClinicalTrials.gov Identifier: NCT00352326|
Recruitment Status : Completed
First Posted : July 14, 2006
Last Update Posted : May 19, 2017
|Condition or disease||Intervention/treatment||Phase|
|Cerebral Palsy||Device: reprogramming assisted communication device interface||Not Applicable|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||29 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Optimizing Assisted Communication Devices for Children With Motor Impairments Using a Model of Information Rate and Channel Capacity|
|Study Start Date :||January 2006|
|Actual Primary Completion Date :||December 2014|
|Actual Study Completion Date :||December 2014|
Experimental: Children (with dystonia and controls)
Participants sat in a chair or their own wheelchair in front of a table whose surface height was adjusted at the midpoint between the hip and the Xiphoid process. They placed the hand that was not used for the task on their lap.
An iPad® (Apple Inc, Cupertino, California) was located on the table in portrait mode in front of the participants at a distance that ranged between 40 and 55 cm. An adjustable metal bookstand supported the iPad® to allow the participants a comfortable screen view. The size of the screen was 19.5 × 14.6 cm. Custom software was developed for the experimental task (XCode 3.2 development environment, iOS 4.2 operating system; Apple Inc, Cupertino, California).
Device: reprogramming assisted communication device interface
The subjects were required to touch targets on the iPad® screen with the index finger of their preferred (less-affected) arm. The experimental task consisted of 180 targets divided in 4 blocks: 45 targets each block with a 1-minute interval between trials to avoid fatigue. Targets appeared at 1 of 9 different locations on the screen, and subjects moved their finger sequentially from one target to the next.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00352326
|United States, California|
|Stanford University School of Medicine|
|Stanford, California, United States, 94305|
|Principal Investigator:||Terence D. Sanger||Stanford University|