TY - JOUR
T1 - Preschoolers' speed of locating a target symbol under different color conditions
AU - Wilkinson, Krista M.
AU - Carlin, Michael
AU - Jagaroo, Vinoth
N1 - Funding Information:
Many thanks to Kristen Scola for assistance with research coordination and data collection. A subset of the research presented in this paper was presented at the annual conference of the American Speech Language Hearing Association in November, 2004. This research was funded by grants NICHD PO1 HD25995 and R29 HD 35015 awarded to the first author, and grant R01 HD36832 awarded to the second author.
PY - 2006/6
Y1 - 2006/6
N2 - 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.
AB - 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.
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U2 - 10.1080/07434610500483620
DO - 10.1080/07434610500483620
M3 - Article
C2 - 17114170
AN - SCOPUS:33745272861
SN - 0743-4618
VL - 22
SP - 123
EP - 133
JO - AAC: Augmentative and Alternative Communication
JF - AAC: Augmentative and Alternative Communication
IS - 2
ER -