OPTIMIZING ASSISTED COMMUNICATION DEVICES FOR CHILDREN WITH MOTOR IMPAIRMENTS USING A MODEL OF INFORMATION RATE AND CHANNEL CAPACITY - Full Text View

Sponsored by:	Stanford University
Information provided by:	Stanford University
ClinicalTrials.gov Identifier:	NCT00352326

Purpose

For children who depend on devices to communicate, the rate of communication is a primary determinant of success. For children with motor impairments, the rate of communication may be limited by inability to contact buttons or cells rapidly or accurately. It is therefore essential to know how to adjust the device interface in order to maximize each child’s rate of communication. The optimal rate of communication is determined by the Channel Capacity, which is the maximum value of the Information Rate for all possible keyboard button or cell layouts for the communication device. We construct a mathematical model for the information rate based on the relationship between movement time and the number of buttons per screen, the size of the buttons, and the length of a sequence of buttons that must be pressed to communicate each word in the vocabulary. We measure the parameters of the model using a custom-programmed touch-screen interface.

Condition	Intervention	Phase
Cerebral Palsy	Device: reprogramming assisted communication device interface	Phase I Phase II

MedlinePlus related topics: Cerebral Palsy

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Treatment, Non-Randomized, Open Label, Uncontrolled, Single Group Assignment, Efficacy Study
Official Title:	OPTIMIZING ASSISTED COMMUNICATION DEVICES FOR CHILDREN WITH MOTOR IMPAIRMENTS USING A MODEL OF INFORMATION RATE AND CHANNEL CAPACITY

Further study details as provided by Stanford University:

Primary Outcome Measures:

communication rate

Estimated Enrollment:	30
Estimated Study Completion Date:	June 2005

Eligibility

Ages Eligible for Study:	6 Years to 21 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

Use of Dynavox ability to follow two-step commands impairment in arm function

Exclusion Criteria:

increased risks of study

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00352326

Locations

United States, California
Stanford University
Stanford, California, United States, 94305

Sponsors and Collaborators

Stanford University

Investigators

Principal Investigator:

Terence Sanger, MD Phd

Stanford University

More Information

Study ID Numbers:	FITTS PILOT
Study First Received:	July 12, 2006
Last Updated:	July 12, 2006
ClinicalTrials.gov Identifier:	NCT00352326
Health Authority:	United States: Food and Drug Administration

Study placed in the following topic categories:

Paralysis
Cerebral Palsy
Brain Damage, Chronic

Central Nervous System Diseases
Brain Diseases
Brain Injuries

Additional relevant MeSH terms:

Nervous System Diseases

ClinicalTrials.gov processed this record on January 14, 2009