Document Detail


Preschoolers' speed of locating a target symbol under different color conditions.
MedLine Citation:
PMID:  17114170     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A pressing decision in AAC concerns the organization of aided visual symbols. One recent proposal suggested that basic principles of visual processing may be important determinants of how easily a symbol is found in an array, and that this, in turn will influence more functional outcomes like symbol identification or use. This study examined the role of color on accuracy and speed of symbol location by 16 preschool children without disabilities. Participants searched for a target stimulus in an array of eight stimuli. In the same-color condition, the eight stimuli were all red; in the guided search condition, four of the stimuli were red and four were yellow; in the unique-color condition, all stimuli were unique colors. Accuracy was higher and reaction time was faster when stimuli were unique colors than when they were all one color. Reaction time and accuracy did not differ under the guided search and the color-unique conditions. The implications for AAC are discussed.
Authors:
Krista M Wilkinson; Michael Carlin; Vinoth Jagaroo
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Augmentative and alternative communication (Baltimore, Md. : 1985)     Volume:  22     ISSN:  1477-3848     ISO Abbreviation:  Augment Altern Commun     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-11-20     Completed Date:  2006-12-14     Revised Date:  2007-12-03    
Medline Journal Info:
Nlm Unique ID:  8504574     Medline TA:  Augment Altern Commun     Country:  United States    
Other Details:
Languages:  eng     Pagination:  123-33     Citation Subset:  IM    
Affiliation:
Emerson College, Communication Sciences & Disorders, 120 Boylston St., Boston, MA 02116, USA. Krista_Wilkinson@emerson.edu
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Attention*
Child
Child, Preschool
Color*
Humans
Pattern Recognition, Visual*
Photic Stimulation / methods*
Reaction Time
Reference Values
Grant Support
ID/Acronym/Agency:
P01 HD25995/HD/NICHD NIH HHS; R01 HD36832/HD/NICHD NIH HHS; R29HD35015/HD/NICHD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Effects of repeated listening experiences on the perception of synthetic speech by individuals with ...
Next Document:  Post-school quality of life for individuals with developmental disabilities who use AAC.